Date   

Re: [Amel] Isolated or non Isolated DC to DC Convertor

Lior <lior246@...>
 

hi anne and john

thanks for the info. this model is 24A and for picks 30A. the 600w model is not isolated. i really do not understand much in this issue. i try to learn from you all.
i found an isolated converter from motormate with full 30A and its also very good price. i think that i will look at it better tommorrow and maybe order.

thanks
lior




ב-30 בנוב 2013, בשעה 20:36, "Anne and John Hollamby " <annejohnholl@...> כתב/ה:

 

Hello Lior,
There is a British firm called Alphatronix which makes a range of 24/12 volt converters including one which supplies 12 volt/30 amps.They are isolated and thousands are used to to provide 12 volts in petrol bowsers so they are as seen tried and tested. I asked them why they were less than half the price of those sold by Icom (this was over ten years ago and the answer was because they sell so many. I was surprised that as recently as 2001 Amel were still using the old technology in the Sailor voltage reducers based on what might be described as a complex system of resistors to burn up the voltage with heat.
I am now sitting back waiting for some obsessive member of this forum to gainsay me and tell everyone that I am talking rubbish!
 
                 Good luck,    Anne and John   Bali Hai, SM319,   Malta
 
From: Lior
Sent: Friday, November 29, 2013 5:39 PM
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor
 
 

hi joel

thanks a lot for your feedback.
can you/someone give us a link to an isolated 24/12v converter for the ssb?

thanks
lior
 

ב-29 בנוב 2013, בשעה 17:15, "Joel F Potter" <jfpottercys@...> כתב/ה:

 

All Amel boats since at least as far  back as the Meltem in the 1970’s has a floating/full earth return 12 and/or 24 volt direct current system. Simply, this means all DC power comes out of the battery, to the device that needs the power, AND THEN RETURN COMPLETRLY AND DIRECTLY TO TH BATTERY BANK. This prevents many possibilities of corrosion and keeps noisy things like fans and fridge motors from ‘talking’ to your radio, stereo and so forth. It is extremely important to never corrupt this system as, depending on how much power has been corrupted, you can suffer serious problems with electrolysis and feedback.

All Amel’s that had a ICOM SSB installed at the shipyard came with a special ICOM 24-12 volt transformer/converter with an isolated negative to accommodate the floating/full earth return. If you provided your own equipment for them to install, they always insisted on the special isolated negative transformer and would not install transformers that were not compliant with this. SSB’s require a healthy amount of power that can cause trouble if not integrated into the DC system correctly.

If your Amel has been modified by those unknowing of the type of DC system it has, change it back to the way God and Captain Amel ( and Jacques Carteau! ) conceived it.

If an electrician or electronics installer comes to your boat, be sure to ask him if he is familiar with a floating DC systems. His answer should be in the affirmative with a compliment that this is the best way to power DC gear. If he says “no”, “that’s stupid”, or “Whuzzat”, send him away. Trust me, you don’t want to screw around with this. I sold a SM 53 boat where the rudder shaft was Swiss cheese because of an improper SSB install. When we dropped the rudder to replace it, I bent the shaft in half with my bare hands. They guy who bought this boat still owns it, I believe, and I invite you to chime in here. He spent $3500 to repair the wiring and more to replace the rudder shaft here in Fort Lauderdale. Amel was a big help with technical assistance but Carteau admonished me to not screw around with the DC electrical system even though it wasn’t I who ever messed with any DC system on an Amel.   

All the best,

Joel

Joel F. Potter - Cruising Yacht Specialist, LLC

Amel's Sole Associate for the Americas

Mailing Address:  401 East Las Olas Boulevard #130-126

Fort Lauderdale, Florida  33301

Phone:  (954) 462-5869   Cell:  (954) 812-2485

Email:  jfpottercys@...

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor.

In the ass locker there should be a copper foil for grounding the A140 tuner.

Regards

Richard Piller

Cell 603 767 5330


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system.

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

Any help understanding this is much appreciated.

Terry&Dena

SV Libby SM#196

San Diego


Re: [Amel] Isolated or non Isolated DC to DC Convertor

Richard03801 <richard03801@...>
 

Hi Eric, we have three inverter units under the nav station. 2 smaller units one each for B&G am/fm radio and VHF. And a larger 30 amp for the SSB ALL installed by Amel prior to delivery of hull 209. There have been two SSB radios installed over time the current one is an ICom 802 and 140 tuner. Which runs on 12 volts off the 30 amp Sailor. Those three Sailor 24 to 12 volt units are the ONLY 12 volt sources at the nav station.
In addition we run a 24 v to 110 60 cyc that powers the 110 v plugs that Amel also supplied with the boat. Therefore we can run BOTH 220 and 110 appliances 24/7 when at the dock or with the Gen Set. 
Fairwinds to all. 
SM 209 for sale in Newport RI

Capt Richard Piller 
Fairbanks Yacht Group llc
Full brokerage and service for all yachts. Email richard@...
Cell 603 767-5330

On Dec 1, 2013, at 0:47, Sailorman <kimberlite@...> wrote:

 

Hi Richard,

My sailor power supplies only supply 5-10 amps .

Considering that they are powering other devices I believe mine would not be sufficient. I supplied the Icom SSB Radio and Power supply. Possibly you have a power supply from Amel that is more powerful than my sailor units.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Saturday, November 30, 2013 7:10 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi Eric. When your essay 209 Amelle supplied the boat with sailor 24 to 12 V inverters. They also supplied the boat with a single sideband I've change that to an 802 with no issues powering it from that same sailor converter. We have had no issues up-and-down the single side band and ham bands. 
Fairwinds to all. 

SM 209 for sale in Newport Rhode Island. 

Richard Piller

 

Cell 603 767 5330


On Nov 29, 2013, at 20:20, Sailorman <kimberlite@...> wrote:

 

I do not believe the 12 v sailor would supply sufficient amps for a SSB radio. I have a very hefty converter made by ICOM that Amel installed under the Nav station. This item is now discontinue. However there are a lot of high amp 24-12 volt electronic converters on the market.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor. 

In the ass locker there should be a copper foil for grounding the A140 tuner. 

Regards 

Richard Piller

 

Cell 603 767 5330


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system. 

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

 

Any help understanding this is much appreciated.

 

Terry&Dena

SV Libby SM#196

San Diego


Re: [Amel] Isolated or non Isolated DC to DC Convertor

Peter Forbes
 

I just installed Alfatronix P/N DD24-12 600 for my SSB radio installation.

Peter Forbes
Amel 54 - 035 - Goçek Turkey
UK (44) 07836 209730

On 1 Dec 2013, at 10:47, "Bill & Judy Rouse" <yahoogroups@...> wrote:

 

Anne,

Thanks for the info.

Bill
BeBe


On Sat, Nov 30, 2013 at 7:36 PM, Anne and John Hollamby <annejohnholl@...> wrote:
 

Hello Lior,
There is a British firm called Alphatronix which makes a range of 24/12 volt converters including one which supplies 12 volt/30 amps.They are isolated and thousands are used to to provide 12 volts in petrol bowsers so they are as seen tried and tested. I asked them why they were less than half the price of those sold by Icom (this was over ten years ago and the answer was because they sell so many. I was surprised that as recently as 2001 Amel were still using the old technology in the Sailor voltage reducers based on what might be described as a complex system of resistors to burn up the voltage with heat.
I am now sitting back waiting for some obsessive member of this forum to gainsay me and tell everyone that I am talking rubbish!
 
                 Good luck,    Anne and John   Bali Hai, SM319,   Malta
 
From: Lior
Sent: Friday, November 29, 2013 5:39 PM
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor
 
 

hi joel

thanks a lot for your feedback.
can you/someone give us a link to an isolated 24/12v converter for the ssb?

thanks
lior
 

ב-29 בנוב 2013, בשעה 17:15, "Joel F Potter" <jfpottercys@...> כתב/ה:

 

All Amel boats since at least as far  back as the Meltem in the 1970’s has a floating/full earth return 12 and/or 24 volt direct current system. Simply, this means all DC power comes out of the battery, to the device that needs the power, AND THEN RETURN COMPLETRLY AND DIRECTLY TO TH BATTERY BANK. This prevents many possibilities of corrosion and keeps noisy things like fans and fridge motors from ‘talking’ to your radio, stereo and so forth. It is extremely important to never corrupt this system as, depending on how much power has been corrupted, you can suffer serious problems with electrolysis and feedback.

All Amel’s that had a ICOM SSB installed at the shipyard came with a special ICOM 24-12 volt transformer/converter with an isolated negative to accommodate the floating/full earth return. If you provided your own equipment for them to install, they always insisted on the special isolated negative transformer and would not install transformers that were not compliant with this. SSB’s require a healthy amount of power that can cause trouble if not integrated into the DC system correctly.

If your Amel has been modified by those unknowing of the type of DC system it has, change it back to the way God and Captain Amel ( and Jacques Carteau! ) conceived it.

If an electrician or electronics installer comes to your boat, be sure to ask him if he is familiar with a floating DC systems. His answer should be in the affirmative with a compliment that this is the best way to power DC gear. If he says “no”, “that’s stupid”, or “Whuzzat”, send him away. Trust me, you don’t want to screw around with this. I sold a SM 53 boat where the rudder shaft was Swiss cheese because of an improper SSB install. When we dropped the rudder to replace it, I bent the shaft in half with my bare hands. They guy who bought this boat still owns it, I believe, and I invite you to chime in here. He spent $3500 to repair the wiring and more to replace the rudder shaft here in Fort Lauderdale. Amel was a big help with technical assistance but Carteau admonished me to not screw around with the DC electrical system even though it wasn’t I who ever messed with any DC system on an Amel.   

All the best,

Joel

Joel F. Potter - Cruising Yacht Specialist, LLC

Amel's Sole Associate for the Americas

Mailing Address:  401 East Las Olas Boulevard #130-126

Fort Lauderdale, Florida  33301

Phone:  (954) 462-5869   Cell:  (954) 812-2485

Email:  jfpottercys@...

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor.

In the ass locker there should be a copper foil for grounding the A140 tuner.

Regards

Richard Piller


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system.

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

Any help understanding this is much appreciated.

Terry&Dena

SV Libby SM#196

San Diego



Re: [Amel] Chantiers Amel Video

Mark Erdos
 

I think the virus may have been in the attached ad at the end of the clip

 

Best regards,

 

Mark

 

SM2K #275

www.creampuff.us

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of divanz620@...
Sent: Saturday, November 30, 2013 10:30 PM
To: amelyachtowners@...
Subject: RE: RE: RE: [Amel] Chantiers Amel Video

 

 

I just scanned it with  AVAST antivirus and NO THREAT was found...what is the virus ?

I have no problem with it

Cheers

Alan

SV Elyse SM437



---In amelyachtowners@..., <kimberlite@...> wrote:

Does anyone have this video without the virus?

fair winds

eric sm 376 Kimberlite 

 

---In amelyachtowners@..., <mcerdos@...> wrote:

Be careful this video has a virus embedded into it.

 

My anti virus soft was able to disable it.

 

Best regards,

 

Mark

 

SM2K #275

www.creampuff.us

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of divanz620@...
Sent: Saturday, November 30, 2013 12:44 AM
To: amelyachtowners@...
Subject: [Amel] Chantiers Amel Video

 

 

http://www.dailymotion.com/video/xqc83y_les-chantiers-amel-a-la-rochelle_news

 

Amel 54 era in the factory

 

Cheers

Alan

SV Elyse SM437

Opua, New Zealand


Re: [Amel] Isolated or non Isolated DC to DC Convertor

Bill & Judy Rouse <yahoogroups@...>
 

Anne,

Thanks for the info.

Bill
BeBe


On Sat, Nov 30, 2013 at 7:36 PM, Anne and John Hollamby <annejohnholl@...> wrote:
 

Hello Lior,
There is a British firm called Alphatronix which makes a range of 24/12 volt converters including one which supplies 12 volt/30 amps.They are isolated and thousands are used to to provide 12 volts in petrol bowsers so they are as seen tried and tested. I asked them why they were less than half the price of those sold by Icom (this was over ten years ago and the answer was because they sell so many. I was surprised that as recently as 2001 Amel were still using the old technology in the Sailor voltage reducers based on what might be described as a complex system of resistors to burn up the voltage with heat.
I am now sitting back waiting for some obsessive member of this forum to gainsay me and tell everyone that I am talking rubbish!
 
                 Good luck,    Anne and John   Bali Hai, SM319,   Malta
 
From: Lior
Sent: Friday, November 29, 2013 5:39 PM
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor
 
 

hi joel

thanks a lot for your feedback.
can you/someone give us a link to an isolated 24/12v converter for the ssb?

thanks
lior
 

ב-29 בנוב 2013, בשעה 17:15, "Joel F Potter" <jfpottercys@...> כתב/ה:

 

All Amel boats since at least as far  back as the Meltem in the 1970’s has a floating/full earth return 12 and/or 24 volt direct current system. Simply, this means all DC power comes out of the battery, to the device that needs the power, AND THEN RETURN COMPLETRLY AND DIRECTLY TO TH BATTERY BANK. This prevents many possibilities of corrosion and keeps noisy things like fans and fridge motors from ‘talking’ to your radio, stereo and so forth. It is extremely important to never corrupt this system as, depending on how much power has been corrupted, you can suffer serious problems with electrolysis and feedback.

All Amel’s that had a ICOM SSB installed at the shipyard came with a special ICOM 24-12 volt transformer/converter with an isolated negative to accommodate the floating/full earth return. If you provided your own equipment for them to install, they always insisted on the special isolated negative transformer and would not install transformers that were not compliant with this. SSB’s require a healthy amount of power that can cause trouble if not integrated into the DC system correctly.

If your Amel has been modified by those unknowing of the type of DC system it has, change it back to the way God and Captain Amel ( and Jacques Carteau! ) conceived it.

If an electrician or electronics installer comes to your boat, be sure to ask him if he is familiar with a floating DC systems. His answer should be in the affirmative with a compliment that this is the best way to power DC gear. If he says “no”, “that’s stupid”, or “Whuzzat”, send him away. Trust me, you don’t want to screw around with this. I sold a SM 53 boat where the rudder shaft was Swiss cheese because of an improper SSB install. When we dropped the rudder to replace it, I bent the shaft in half with my bare hands. They guy who bought this boat still owns it, I believe, and I invite you to chime in here. He spent $3500 to repair the wiring and more to replace the rudder shaft here in Fort Lauderdale. Amel was a big help with technical assistance but Carteau admonished me to not screw around with the DC electrical system even though it wasn’t I who ever messed with any DC system on an Amel.   

All the best,

Joel

Joel F. Potter - Cruising Yacht Specialist, LLC

Amel's Sole Associate for the Americas

Mailing Address:  401 East Las Olas Boulevard #130-126

Fort Lauderdale, Florida  33301

Phone:  (954) 462-5869   Cell:  (954) 812-2485

Email:  jfpottercys@...

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor.

In the ass locker there should be a copper foil for grounding the A140 tuner.

Regards

Richard Piller


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system.

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

Any help understanding this is much appreciated.

Terry&Dena

SV Libby SM#196

San Diego



Re: [Amel] Isolated or non Isolated DC to DC Convertor

Sailorman <kimberlite@...>
 

Hi Richard,

My sailor power supplies only supply 5-10 amps .

Considering that they are powering other devices I believe mine would not be sufficient. I supplied the Icom SSB Radio and Power supply. Possibly you have a power supply from Amel that is more powerful than my sailor units.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Saturday, November 30, 2013 7:10 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi Eric. When your essay 209 Amelle supplied the boat with sailor 24 to 12 V inverters. They also supplied the boat with a single sideband I've change that to an 802 with no issues powering it from that same sailor converter. We have had no issues up-and-down the single side band and ham bands. 
Fairwinds to all. 

SM 209 for sale in Newport Rhode Island. 

Richard Piller

 

Cell 603 767 5330


On Nov 29, 2013, at 20:20, Sailorman <kimberlite@...> wrote:

 

I do not believe the 12 v sailor would supply sufficient amps for a SSB radio. I have a very hefty converter made by ICOM that Amel installed under the Nav station. This item is now discontinue. However there are a lot of high amp 24-12 volt electronic converters on the market.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor. 

In the ass locker there should be a copper foil for grounding the A140 tuner. 

Regards 

Richard Piller

 

Cell 603 767 5330


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system. 

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

 

Any help understanding this is much appreciated.

 

Terry&Dena

SV Libby SM#196

San Diego


Re: [Amel] Chantiers Amel Video

Alan Leslie
 

I just scanned it with  AVAST antivirus and NO THREAT was found...what is the virus ?

I have no problem with it

Cheers

Alan

SV Elyse SM437

---In amelyachtowners@..., <mcerdos@...> wrote:

Be careful this video has a virus embedded into it.

 

My anti virus soft was able to disable it.

 

Best regards,

 

Mark

 

SM2K #275

www.creampuff.us

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of divanz620@...
Sent: Saturday, November 30, 2013 12:44 AM
To: amelyachtowners@...
Subject: [Amel] Chantiers Amel Video

 

 

http://www.dailymotion.com/video/xqc83y_les-chantiers-amel-a-la-rochelle_news

 

Amel 54 era in the factory

 

Cheers

Alan

SV Elyse SM437

Opua, New Zealand


Re: [Amel] Isolated or non Isolated DC to DC Convertor

Lior Keydar <lior246@...>
 

mark,

this converter has also an output of 12.5 volt (instead of 13.6?). 

i found maybe another possible converter:

it is isolated, has 13.8v and 30 or 40A output
i have limited know how but maybe this converter could be a good option.

regards
lior

‫נשלח מה-iPad שלי‬

‫ב-30.11.2013, בשעה 22:10, ‏"Mark Erdos" <mcerdos@...> כתב/ה:‬

 

Lior,

 

I also looked at this one and I question the true 30 amp rating as it is 30 amps at 35 vdc input. It doesn’t say what the amp rating would be at 24vdc input. It may be a good idea to contact their technical support on Monday.

 

Best regards,

 

Mark

 

SM2K #275

www.creampuff.us

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Lior Keydar
Sent: Saturday, November 30, 2013 11:59 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

hi

 

i found also this converter: 

 

this product looks like a full 30a converter. 

any feedback?

 

thanks

lior

 

 

‫נשלח מה-iPad שלי


‫ב-30.11.2013, בשעה 17:10, ‏"Mark Erdos" <mcerdos@...> כתב/ה:

 

The Newmar 48-12-35I is a unit that is isolated and is rated to 25amp continuous and 35 amp peak. I have a tech support ticket open at Icom USA to find out if this would work with their M802. I will post their response. But, I’m guessing they will say it needs to be 30 amp continuous since that is what is stated in the manual. I’ve never known tech support to override the manual.

 

Best regards,

 

Mark

 

SM2K #275

www.creampuff.us

 

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Bill & Judy Rouse
Sent: Saturday, November 30, 2013 10:54 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Lior,

 

If you are looking at PowerVerter, you will need a 24 / 30 A PV24i. Isolated

Input to Output.

 

On SM #387, Amel used a ICOM PS66 , DC-DC Converter which is 24 volts to 12 volts with 30 amps output. I know the Icom works very well. I no nothing about PowerVerter...may be good...I do not know.

 

Bill

BeBe

 

On Sat, Nov 30, 2013 at 3:41 PM, Lior Keydar <lior246@...> wrote:

 

thanks bill

 

i really do not understand it so good.

there are from alfatronix "non isolated common negative" or "isolated input to output" converters. 

 

could you maybe tell me what is the right one? or am i completally wrong?

 

thanks a lot

lior

 

‫נשלח מה-iPad שלי


‫ב-30.11.2013, בשעה 15:58, ‏"Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

I have an ICOM PS66, DC-DC Converter. It is rated for 30 Amps and uses technology that is designed for radio transmitters and receivers.

 

This was installed by Amel when BeBe was manufactured.

 

Bill

BeBe, SM2k, #387

 

On Sat, Nov 30, 2013 at 2:39 PM, Lior <lior246@...> wrote:

 

dear bill

 

can you maybe write what converter is installed on your boat? i did not find any isolated converter.

 

thanks

lior

 


ב-30 בנוב 2013, בשעה 14:50, "Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

Captain Pillar,

 

On all of the Super Maramus I have seen, there are 3 of the Thrane & Thrane Sailor N420 24VDC to 12VDC converter/regulators. These are located inside the right door below the nav table.

 

One of these Sailor N420's is for 12V instruments (B&G Hydra or other), another for 12V VHF and the third for 12V accessories like the AM/FM Stereo and cigarette lighter. Each of these has a maximum rated output of 8 amps.

 

The IC M802 requires a maximum of 30 amps in Transmit...3 amps in Receive.

 

Your installation is not only wrong, it is likely dangerous.

 

Bill

BeBe

 

 

On Sat, Nov 30, 2013 at 1:39 PM, Richard Piller <richard03801@...> wrote:

 

Hi Eric.

Sorry for the text I did this using a speakerphone dictating and it did not come out right. 

On my factory supplied single side band there are several sailor 24 to 12 V inverters under the net station they power the SSB.  My Icom 8O2 is a 12 volt unit and it works perfectly using the Amel supplied Sailor units installation. 

1998 SM 209 in Newport RI for sale. 

Fair winds 

Regards

Capt Richard Piller


On Nov 30, 2013, at 7:09, Richard03801 <richard03801@...> wrote:

 

Hi Eric. When your essay 209 Amelle supplied the boat with sailor 24 to 12 V inverters. They also supplied the boat with a single sideband I've change that to an 802 with no issues powering it from that same sailor converter. We have had no issues up-and-down the single side band and ham bands. 
Fairwinds to all. 

SM 209 for sale in Newport Rhode Island. 

Richard Piller


On Nov 29, 2013, at 20:20, Sailorman <kimberlite@...> wrote:

 

I do not believe the 12 v sailor would supply sufficient amps for a SSB radio. I have a very hefty converter made by ICOM that Amel installed under the Nav station. This item is now discontinue. However there are a lot of high amp 24-12 volt electronic converters on the market.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor. 

In the ass locker there should be a copper foil for grounding the A140 tuner. 

Regards 

Richard Piller


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system. 

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

 

Any help understanding this is much appreciated.

 

Terry&Dena

SV Libby SM#196

San Diego

 


I am using the Free version of SPAMfighter.
SPAMfighter has removed 2389 of my spam emails to date.

Do you have a slow PC? Try a free scan!

 

 

 


Re: [Amel] Chantiers Amel Video

kimberlite@...
 

Does anyone have this video without the virus?

fair winds

eric sm 376 Kimberlite 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of divanz620@...
Sent: Saturday, November 30, 2013 12:44 AM
To: amelyachtowners@...
Subject: [Amel] Chantiers Amel Video

 

 

http://www.dailymotion.com/video/xqc83y_les-chantiers-amel-a-la-rochelle_news

 

Amel 54 era in the factory

 

Cheers

Alan

SV Elyse SM437

Opua, New Zealand


Re: [Amel] Isolated or non Isolated DC to DC Convertor

Mark Erdos
 

Lior,

 

I also looked at this one and I question the true 30 amp rating as it is 30 amps at 35 vdc input. It doesn’t say what the amp rating would be at 24vdc input. It may be a good idea to contact their technical support on Monday.

 

Best regards,

 

Mark

 

SM2K #275

www.creampuff.us

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Lior Keydar
Sent: Saturday, November 30, 2013 11:59 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

hi

 

i found also this converter: 

 

this product looks like a full 30a converter. 

any feedback?

 

thanks

lior

 

 

‫נשלח מה-iPad שלי


‫ב-30.11.2013, בשעה 17:10, ‏"Mark Erdos" <mcerdos@...> כתב/ה:

 

The Newmar 48-12-35I is a unit that is isolated and is rated to 25amp continuous and 35 amp peak. I have a tech support ticket open at Icom USA to find out if this would work with their M802. I will post their response. But, I’m guessing they will say it needs to be 30 amp continuous since that is what is stated in the manual. I’ve never known tech support to override the manual.

 

Best regards,

 

Mark

 

SM2K #275

www.creampuff.us

 

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Bill & Judy Rouse
Sent: Saturday, November 30, 2013 10:54 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Lior,

 

If you are looking at PowerVerter, you will need a 24 / 30 A PV24i. Isolated

Input to Output.

 

On SM #387, Amel used a ICOM PS66 , DC-DC Converter which is 24 volts to 12 volts with 30 amps output. I know the Icom works very well. I no nothing about PowerVerter...may be good...I do not know.

 

Bill

BeBe

 

On Sat, Nov 30, 2013 at 3:41 PM, Lior Keydar <lior246@...> wrote:

 

thanks bill

 

i really do not understand it so good.

there are from alfatronix "non isolated common negative" or "isolated input to output" converters. 

 

could you maybe tell me what is the right one? or am i completally wrong?

 

thanks a lot

lior

 

‫נשלח מה-iPad שלי


‫ב-30.11.2013, בשעה 15:58, ‏"Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

I have an ICOM PS66, DC-DC Converter. It is rated for 30 Amps and uses technology that is designed for radio transmitters and receivers.

 

This was installed by Amel when BeBe was manufactured.

 

Bill

BeBe, SM2k, #387

 

On Sat, Nov 30, 2013 at 2:39 PM, Lior <lior246@...> wrote:

 

dear bill

 

can you maybe write what converter is installed on your boat? i did not find any isolated converter.

 

thanks

lior

 


ב-30 בנוב 2013, בשעה 14:50, "Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

Captain Pillar,

 

On all of the Super Maramus I have seen, there are 3 of the Thrane & Thrane Sailor N420 24VDC to 12VDC converter/regulators. These are located inside the right door below the nav table.

 

One of these Sailor N420's is for 12V instruments (B&G Hydra or other), another for 12V VHF and the third for 12V accessories like the AM/FM Stereo and cigarette lighter. Each of these has a maximum rated output of 8 amps.

 

The IC M802 requires a maximum of 30 amps in Transmit...3 amps in Receive.

 

Your installation is not only wrong, it is likely dangerous.

 

Bill

BeBe

 

 

On Sat, Nov 30, 2013 at 1:39 PM, Richard Piller <richard03801@...> wrote:

 

Hi Eric.

Sorry for the text I did this using a speakerphone dictating and it did not come out right. 

On my factory supplied single side band there are several sailor 24 to 12 V inverters under the net station they power the SSB.  My Icom 8O2 is a 12 volt unit and it works perfectly using the Amel supplied Sailor units installation. 

1998 SM 209 in Newport RI for sale. 

Fair winds 

Regards

Capt Richard Piller


On Nov 30, 2013, at 7:09, Richard03801 <richard03801@...> wrote:

 

Hi Eric. When your essay 209 Amelle supplied the boat with sailor 24 to 12 V inverters. They also supplied the boat with a single sideband I've change that to an 802 with no issues powering it from that same sailor converter. We have had no issues up-and-down the single side band and ham bands. 
Fairwinds to all. 

SM 209 for sale in Newport Rhode Island. 

Richard Piller


On Nov 29, 2013, at 20:20, Sailorman <kimberlite@...> wrote:

 

I do not believe the 12 v sailor would supply sufficient amps for a SSB radio. I have a very hefty converter made by ICOM that Amel installed under the Nav station. This item is now discontinue. However there are a lot of high amp 24-12 volt electronic converters on the market.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor. 

In the ass locker there should be a copper foil for grounding the A140 tuner. 

Regards 

Richard Piller


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system. 

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

 

Any help understanding this is much appreciated.

 

Terry&Dena

SV Libby SM#196

San Diego

 


I am using the Free version of SPAMfighter.
SPAMfighter has removed 2389 of my spam emails to date.

Do you have a slow PC? Try a free scan!

 

 

 


Re: [Amel] Isolated or non Isolated DC to DC Convertor

Anne and John Hollamby <annejohnholl@...>
 

Hello Lior,
There is a British firm called Alphatronix which makes a range of 24/12 volt converters including one which supplies 12 volt/30 amps.They are isolated and thousands are used to to provide 12 volts in petrol bowsers so they are as seen tried and tested. I asked them why they were less than half the price of those sold by Icom (this was over ten years ago and the answer was because they sell so many. I was surprised that as recently as 2001 Amel were still using the old technology in the Sailor voltage reducers based on what might be described as a complex system of resistors to burn up the voltage with heat.
I am now sitting back waiting for some obsessive member of this forum to gainsay me and tell everyone that I am talking rubbish!
 
                 Good luck,    Anne and John   Bali Hai, SM319,   Malta
 

From: Lior
Sent: Friday, November 29, 2013 5:39 PM
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor
 
 

hi joel

thanks a lot for your feedback.
can you/someone give us a link to an isolated 24/12v converter for the ssb?

thanks
lior
 

ב-29 בנוב 2013, בשעה 17:15, "Joel F Potter" <jfpottercys@...> כתב/ה:

 

All Amel boats since at least as far  back as the Meltem in the 1970’s has a floating/full earth return 12 and/or 24 volt direct current system. Simply, this means all DC power comes out of the battery, to the device that needs the power, AND THEN RETURN COMPLETRLY AND DIRECTLY TO TH BATTERY BANK. This prevents many possibilities of corrosion and keeps noisy things like fans and fridge motors from ‘talking’ to your radio, stereo and so forth. It is extremely important to never corrupt this system as, depending on how much power has been corrupted, you can suffer serious problems with electrolysis and feedback.

All Amel’s that had a ICOM SSB installed at the shipyard came with a special ICOM 24-12 volt transformer/converter with an isolated negative to accommodate the floating/full earth return. If you provided your own equipment for them to install, they always insisted on the special isolated negative transformer and would not install transformers that were not compliant with this. SSB’s require a healthy amount of power that can cause trouble if not integrated into the DC system correctly.

If your Amel has been modified by those unknowing of the type of DC system it has, change it back to the way God and Captain Amel ( and Jacques Carteau! ) conceived it.

If an electrician or electronics installer comes to your boat, be sure to ask him if he is familiar with a floating DC systems. His answer should be in the affirmative with a compliment that this is the best way to power DC gear. If he says “no”, “that’s stupid”, or “Whuzzat”, send him away. Trust me, you don’t want to screw around with this. I sold a SM 53 boat where the rudder shaft was Swiss cheese because of an improper SSB install. When we dropped the rudder to replace it, I bent the shaft in half with my bare hands. They guy who bought this boat still owns it, I believe, and I invite you to chime in here. He spent $3500 to repair the wiring and more to replace the rudder shaft here in Fort Lauderdale. Amel was a big help with technical assistance but Carteau admonished me to not screw around with the DC electrical system even though it wasn’t I who ever messed with any DC system on an Amel.   

All the best,

Joel

Joel F. Potter - Cruising Yacht Specialist, LLC

Amel's Sole Associate for the Americas

Mailing Address:  401 East Las Olas Boulevard #130-126

Fort Lauderdale, Florida  33301

Phone:  (954) 462-5869   Cell:  (954) 812-2485

Email:  jfpottercys@...

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor.

In the ass locker there should be a copper foil for grounding the A140 tuner.

Regards

Richard Piller

Cell 603 767 5330


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system.

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

Any help understanding this is much appreciated.

Terry&Dena

SV Libby SM#196

San Diego


Re: [Amel] Isolated or non Isolated DC to DC Convertor

Lior Keydar <lior246@...>
 

hi

i found also this converter: 

this product looks like a full 30a converter. 
any feedback?

thanks
lior


‫נשלח מה-iPad שלי‬

‫ב-30.11.2013, בשעה 17:10, ‏"Mark Erdos" <mcerdos@...> כתב/ה:‬

 

The Newmar 48-12-35I is a unit that is isolated and is rated to 25amp continuous and 35 amp peak. I have a tech support ticket open at Icom USA to find out if this would work with their M802. I will post their response. But, I’m guessing they will say it needs to be 30 amp continuous since that is what is stated in the manual. I’ve never known tech support to override the manual.

 

Best regards,

 

Mark

 

SM2K #275

www.creampuff.us

 

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Bill & Judy Rouse
Sent: Saturday, November 30, 2013 10:54 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Lior,

 

If you are looking at PowerVerter, you will need a 24 / 30 A PV24i. Isolated

Input to Output.

 

On SM #387, Amel used a ICOM PS66 , DC-DC Converter which is 24 volts to 12 volts with 30 amps output. I know the Icom works very well. I no nothing about PowerVerter...may be good...I do not know.

 

Bill

BeBe

 

On Sat, Nov 30, 2013 at 3:41 PM, Lior Keydar <lior246@...> wrote:

 

thanks bill

 

i really do not understand it so good.

there are from alfatronix "non isolated common negative" or "isolated input to output" converters. 

 

could you maybe tell me what is the right one? or am i completally wrong?

 

thanks a lot

lior

 

‫נשלח מה-iPad שלי


‫ב-30.11.2013, בשעה 15:58, ‏"Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

I have an ICOM PS66, DC-DC Converter. It is rated for 30 Amps and uses technology that is designed for radio transmitters and receivers.

 

This was installed by Amel when BeBe was manufactured.

 

Bill

BeBe, SM2k, #387

 

On Sat, Nov 30, 2013 at 2:39 PM, Lior <lior246@...> wrote:

 

dear bill

 

can you maybe write what converter is installed on your boat? i did not find any isolated converter.

 

thanks

lior

 


ב-30 בנוב 2013, בשעה 14:50, "Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

Captain Pillar,

 

On all of the Super Maramus I have seen, there are 3 of the Thrane & Thrane Sailor N420 24VDC to 12VDC converter/regulators. These are located inside the right door below the nav table.

 

One of these Sailor N420's is for 12V instruments (B&G Hydra or other), another for 12V VHF and the third for 12V accessories like the AM/FM Stereo and cigarette lighter. Each of these has a maximum rated output of 8 amps.

 

The IC M802 requires a maximum of 30 amps in Transmit...3 amps in Receive.

 

Your installation is not only wrong, it is likely dangerous.

 

Bill

BeBe

 

 

On Sat, Nov 30, 2013 at 1:39 PM, Richard Piller <richard03801@...> wrote:

 

Hi Eric.

Sorry for the text I did this using a speakerphone dictating and it did not come out right. 

On my factory supplied single side band there are several sailor 24 to 12 V inverters under the net station they power the SSB.  My Icom 8O2 is a 12 volt unit and it works perfectly using the Amel supplied Sailor units installation. 

1998 SM 209 in Newport RI for sale. 

Fair winds 

Regards

Capt Richard Piller


On Nov 30, 2013, at 7:09, Richard03801 <richard03801@...> wrote:

 

Hi Eric. When your essay 209 Amelle supplied the boat with sailor 24 to 12 V inverters. They also supplied the boat with a single sideband I've change that to an 802 with no issues powering it from that same sailor converter. We have had no issues up-and-down the single side band and ham bands. 
Fairwinds to all. 

SM 209 for sale in Newport Rhode Island. 

Richard Piller


On Nov 29, 2013, at 20:20, Sailorman <kimberlite@...> wrote:

 

I do not believe the 12 v sailor would supply sufficient amps for a SSB radio. I have a very hefty converter made by ICOM that Amel installed under the Nav station. This item is now discontinue. However there are a lot of high amp 24-12 volt electronic converters on the market.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor. 

In the ass locker there should be a copper foil for grounding the A140 tuner. 

Regards 

Richard Piller


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system. 

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

 

Any help understanding this is much appreciated.

 

Terry&Dena

SV Libby SM#196

San Diego

 


I am using the Free version of SPAMfighter.
SPAMfighter has removed 2389 of my spam emails to date.

Do you have a slow PC? Try a free scan!

 

 

 


Re: [Amel] Isolated or non Isolated DC to DC Convertor

Mark Erdos
 

The Newmar 48-12-35I is a unit that is isolated and is rated to 25amp continuous and 35 amp peak. I have a tech support ticket open at Icom USA to find out if this would work with their M802. I will post their response. But, I’m guessing they will say it needs to be 30 amp continuous since that is what is stated in the manual. I’ve never known tech support to override the manual.

 

Best regards,

 

Mark

 

SM2K #275

www.creampuff.us

 

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Bill & Judy Rouse
Sent: Saturday, November 30, 2013 10:54 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Lior,

 

If you are looking at PowerVerter, you will need a 24 / 30 A PV24i. Isolated

Input to Output.

 

On SM #387, Amel used a ICOM PS66 , DC-DC Converter which is 24 volts to 12 volts with 30 amps output. I know the Icom works very well. I no nothing about PowerVerter...may be good...I do not know.

 

Bill

BeBe

 

On Sat, Nov 30, 2013 at 3:41 PM, Lior Keydar <lior246@...> wrote:

 

thanks bill

 

i really do not understand it so good.

there are from alfatronix "non isolated common negative" or "isolated input to output" converters. 

 

could you maybe tell me what is the right one? or am i completally wrong?

 

thanks a lot

lior

 

‫נשלח מה-iPad שלי


‫ב-30.11.2013, בשעה 15:58, ‏"Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

I have an ICOM PS66, DC-DC Converter. It is rated for 30 Amps and uses technology that is designed for radio transmitters and receivers.

 

This was installed by Amel when BeBe was manufactured.

 

Bill

BeBe, SM2k, #387

 

On Sat, Nov 30, 2013 at 2:39 PM, Lior <lior246@...> wrote:

 

dear bill

 

can you maybe write what converter is installed on your boat? i did not find any isolated converter.

 

thanks

lior

 


ב-30 בנוב 2013, בשעה 14:50, "Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

Captain Pillar,

 

On all of the Super Maramus I have seen, there are 3 of the Thrane & Thrane Sailor N420 24VDC to 12VDC converter/regulators. These are located inside the right door below the nav table.

 

One of these Sailor N420's is for 12V instruments (B&G Hydra or other), another for 12V VHF and the third for 12V accessories like the AM/FM Stereo and cigarette lighter. Each of these has a maximum rated output of 8 amps.

 

The IC M802 requires a maximum of 30 amps in Transmit...3 amps in Receive.

 

Your installation is not only wrong, it is likely dangerous.

 

Bill

BeBe

 

 

On Sat, Nov 30, 2013 at 1:39 PM, Richard Piller <richard03801@...> wrote:

 

Hi Eric.

Sorry for the text I did this using a speakerphone dictating and it did not come out right. 

On my factory supplied single side band there are several sailor 24 to 12 V inverters under the net station they power the SSB.  My Icom 8O2 is a 12 volt unit and it works perfectly using the Amel supplied Sailor units installation. 

1998 SM 209 in Newport RI for sale. 

Fair winds 

Regards

Capt Richard Piller


On Nov 30, 2013, at 7:09, Richard03801 <richard03801@...> wrote:

 

Hi Eric. When your essay 209 Amelle supplied the boat with sailor 24 to 12 V inverters. They also supplied the boat with a single sideband I've change that to an 802 with no issues powering it from that same sailor converter. We have had no issues up-and-down the single side band and ham bands. 
Fairwinds to all. 

SM 209 for sale in Newport Rhode Island. 

Richard Piller


On Nov 29, 2013, at 20:20, Sailorman <kimberlite@...> wrote:

 

I do not believe the 12 v sailor would supply sufficient amps for a SSB radio. I have a very hefty converter made by ICOM that Amel installed under the Nav station. This item is now discontinue. However there are a lot of high amp 24-12 volt electronic converters on the market.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor. 

In the ass locker there should be a copper foil for grounding the A140 tuner. 

Regards 

Richard Piller


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system. 

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

 

Any help understanding this is much appreciated.

 

Terry&Dena

SV Libby SM#196

San Diego

 


I am using the Free version of SPAMfighter.
SPAMfighter has removed 2389 of my spam emails to date.

Do you have a slow PC? Try a free scan!

 

 

 


Re: [Amel] Isolated or non Isolated DC to DC Convertor

Bill & Judy Rouse <yahoogroups@...>
 

Lior,

If you are looking at PowerVerter, you will need a 24 / 30 A PV24i. Isolated
Input to Output.

On SM #387, Amel used a ICOM PS66 , DC-DC Converter which is 24 volts to 12 volts with 30 amps output. I know the Icom works very well. I no nothing about PowerVerter...may be good...I do not know.

Bill
BeBe


On Sat, Nov 30, 2013 at 3:41 PM, Lior Keydar <lior246@...> wrote:
 

thanks bill

i really do not understand it so good.
there are from alfatronix "non isolated common negative" or "isolated input to output" converters. 

could you maybe tell me what is the right one? or am i completally wrong?

thanks a lot
lior

‫נשלח מה-iPad שלי‬

‫ב-30.11.2013, בשעה 15:58, ‏"Bill & Judy Rouse" <yahoogroups@...> כתב/ה:‬

 

I have an ICOM PS66, DC-DC Converter. It is rated for 30 Amps and uses technology that is designed for radio transmitters and receivers.

This was installed by Amel when BeBe was manufactured.

Bill
BeBe, SM2k, #387


On Sat, Nov 30, 2013 at 2:39 PM, Lior <lior246@...> wrote:
 

dear bill

can you maybe write what converter is installed on your boat? i did not find any isolated converter.

thanks
lior


ב-30 בנוב 2013, בשעה 14:50, "Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

Captain Pillar,

On all of the Super Maramus I have seen, there are 3 of the Thrane & Thrane Sailor N420 24VDC to 12VDC converter/regulators. These are located inside the right door below the nav table.

One of these Sailor N420's is for 12V instruments (B&G Hydra or other), another for 12V VHF and the third for 12V accessories like the AM/FM Stereo and cigarette lighter. Each of these has a maximum rated output of 8 amps.

The IC M802 requires a maximum of 30 amps in Transmit...3 amps in Receive.

Your installation is not only wrong, it is likely dangerous.

Bill
BeBe



On Sat, Nov 30, 2013 at 1:39 PM, Richard Piller <richard03801@...> wrote:
 

Hi Eric.
Sorry for the text I did this using a speakerphone dictating and it did not come out right. 
On my factory supplied single side band there are several sailor 24 to 12 V inverters under the net station they power the SSB.  My Icom 8O2 is a 12 volt unit and it works perfectly using the Amel supplied Sailor units installation. 
1998 SM 209 in Newport RI for sale. 
Fair winds 

Regards
Capt Richard Piller

On Nov 30, 2013, at 7:09, Richard03801 <richard03801@...> wrote:

 

Hi Eric. When your essay 209 Amelle supplied the boat with sailor 24 to 12 V inverters. They also supplied the boat with a single sideband I've change that to an 802 with no issues powering it from that same sailor converter. We have had no issues up-and-down the single side band and ham bands. 
Fairwinds to all. 
SM 209 for sale in Newport Rhode Island. 
Richard Piller

On Nov 29, 2013, at 20:20, Sailorman <kimberlite@...> wrote:

 

I do not believe the 12 v sailor would supply sufficient amps for a SSB radio. I have a very hefty converter made by ICOM that Amel installed under the Nav station. This item is now discontinue. However there are a lot of high amp 24-12 volt electronic converters on the market.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor. 

In the ass locker there should be a copper foil for grounding the A140 tuner. 

Regards 

Richard Piller

 


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system. 

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

 

Any help understanding this is much appreciated.

 

Terry&Dena

SV Libby SM#196

San Diego



I am using the Free version of SPAMfighter.
SPAMfighter has removed 2389 of my spam emails to date.

Do you have a slow PC? Try a free scan!





Re: [Amel] Isolated or non Isolated DC to DC Convertor

Lior Keydar <lior246@...>
 

thanks bill

i really do not understand it so good.
there are from alfatronix "non isolated common negative" or "isolated input to output" converters. 

could you maybe tell me what is the right one? or am i completally wrong?

thanks a lot
lior

‫נשלח מה-iPad שלי‬

‫ב-30.11.2013, בשעה 15:58, ‏"Bill & Judy Rouse" <yahoogroups@...> כתב/ה:‬

 

I have an ICOM PS66, DC-DC Converter. It is rated for 30 Amps and uses technology that is designed for radio transmitters and receivers.

This was installed by Amel when BeBe was manufactured.

Bill
BeBe, SM2k, #387


On Sat, Nov 30, 2013 at 2:39 PM, Lior <lior246@...> wrote:
 

dear bill

can you maybe write what converter is installed on your boat? i did not find any isolated converter.

thanks
lior


ב-30 בנוב 2013, בשעה 14:50, "Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

Captain Pillar,

On all of the Super Maramus I have seen, there are 3 of the Thrane & Thrane Sailor N420 24VDC to 12VDC converter/regulators. These are located inside the right door below the nav table.

One of these Sailor N420's is for 12V instruments (B&G Hydra or other), another for 12V VHF and the third for 12V accessories like the AM/FM Stereo and cigarette lighter. Each of these has a maximum rated output of 8 amps.

The IC M802 requires a maximum of 30 amps in Transmit...3 amps in Receive.

Your installation is not only wrong, it is likely dangerous.

Bill
BeBe



On Sat, Nov 30, 2013 at 1:39 PM, Richard Piller <richard03801@...> wrote:
 

Hi Eric.
Sorry for the text I did this using a speakerphone dictating and it did not come out right. 
On my factory supplied single side band there are several sailor 24 to 12 V inverters under the net station they power the SSB.  My Icom 8O2 is a 12 volt unit and it works perfectly using the Amel supplied Sailor units installation. 
1998 SM 209 in Newport RI for sale. 
Fair winds 

Regards
Capt Richard Piller

On Nov 30, 2013, at 7:09, Richard03801 <richard03801@...> wrote:

 

Hi Eric. When your essay 209 Amelle supplied the boat with sailor 24 to 12 V inverters. They also supplied the boat with a single sideband I've change that to an 802 with no issues powering it from that same sailor converter. We have had no issues up-and-down the single side band and ham bands. 
Fairwinds to all. 
SM 209 for sale in Newport Rhode Island. 
Richard Piller

On Nov 29, 2013, at 20:20, Sailorman <kimberlite@...> wrote:

 

I do not believe the 12 v sailor would supply sufficient amps for a SSB radio. I have a very hefty converter made by ICOM that Amel installed under the Nav station. This item is now discontinue. However there are a lot of high amp 24-12 volt electronic converters on the market.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor. 

In the ass locker there should be a copper foil for grounding the A140 tuner. 

Regards 

Richard Piller

 


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system. 

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

 

Any help understanding this is much appreciated.

 

Terry&Dena

SV Libby SM#196

San Diego



I am using the Free version of SPAMfighter.
SPAMfighter has removed 2389 of my spam emails to date.

Do you have a slow PC? Try a free scan!




Re: [Amel] Chantiers Amel Video

Mark Erdos
 

Be careful this video has a virus embedded into it.

 

My anti virus soft was able to disable it.

 

Best regards,

 

Mark

 

SM2K #275

www.creampuff.us

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of divanz620@...
Sent: Saturday, November 30, 2013 12:44 AM
To: amelyachtowners@...
Subject: [Amel] Chantiers Amel Video

 

 

http://www.dailymotion.com/video/xqc83y_les-chantiers-amel-a-la-rochelle_news

 

Amel 54 era in the factory

 

Cheers

Alan

SV Elyse SM437

Opua, New Zealand


Re: [Amel] Isolated or non Isolated DC to DC Convertor

Bill & Judy Rouse <yahoogroups@...>
 

I have an ICOM PS66, DC-DC Converter. It is rated for 30 Amps and uses technology that is designed for radio transmitters and receivers.

This was installed by Amel when BeBe was manufactured.

Bill
BeBe, SM2k, #387


On Sat, Nov 30, 2013 at 2:39 PM, Lior <lior246@...> wrote:
 

dear bill

can you maybe write what converter is installed on your boat? i did not find any isolated converter.

thanks
lior


ב-30 בנוב 2013, בשעה 14:50, "Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

Captain Pillar,

On all of the Super Maramus I have seen, there are 3 of the Thrane & Thrane Sailor N420 24VDC to 12VDC converter/regulators. These are located inside the right door below the nav table.

One of these Sailor N420's is for 12V instruments (B&G Hydra or other), another for 12V VHF and the third for 12V accessories like the AM/FM Stereo and cigarette lighter. Each of these has a maximum rated output of 8 amps.

The IC M802 requires a maximum of 30 amps in Transmit...3 amps in Receive.

Your installation is not only wrong, it is likely dangerous.

Bill
BeBe



On Sat, Nov 30, 2013 at 1:39 PM, Richard Piller <richard03801@...> wrote:
 

Hi Eric.
Sorry for the text I did this using a speakerphone dictating and it did not come out right. 
On my factory supplied single side band there are several sailor 24 to 12 V inverters under the net station they power the SSB.  My Icom 8O2 is a 12 volt unit and it works perfectly using the Amel supplied Sailor units installation. 
1998 SM 209 in Newport RI for sale. 
Fair winds 

Regards
Capt Richard Piller

On Nov 30, 2013, at 7:09, Richard03801 <richard03801@...> wrote:

 

Hi Eric. When your essay 209 Amelle supplied the boat with sailor 24 to 12 V inverters. They also supplied the boat with a single sideband I've change that to an 802 with no issues powering it from that same sailor converter. We have had no issues up-and-down the single side band and ham bands. 
Fairwinds to all. 
SM 209 for sale in Newport Rhode Island. 
Richard Piller

On Nov 29, 2013, at 20:20, Sailorman <kimberlite@...> wrote:

 

I do not believe the 12 v sailor would supply sufficient amps for a SSB radio. I have a very hefty converter made by ICOM that Amel installed under the Nav station. This item is now discontinue. However there are a lot of high amp 24-12 volt electronic converters on the market.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor. 

In the ass locker there should be a copper foil for grounding the A140 tuner. 

Regards 

Richard Piller

 


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system. 

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

 

Any help understanding this is much appreciated.

 

Terry&Dena

SV Libby SM#196

San Diego



I am using the Free version of SPAMfighter.
SPAMfighter has removed 2389 of my spam emails to date.

Do you have a slow PC? Try a free scan!




Re: [Amel] Isolated or non Isolated DC to DC Convertor

Lior <lior246@...>
 

dear bill

can you maybe write what converter is installed on your boat? i did not find any isolated converter.

thanks
lior


ב-30 בנוב 2013, בשעה 14:50, "Bill & Judy Rouse" <yahoogroups@...> כתב/ה:

 

Captain Pillar,

On all of the Super Maramus I have seen, there are 3 of the Thrane & Thrane Sailor N420 24VDC to 12VDC converter/regulators. These are located inside the right door below the nav table.

One of these Sailor N420's is for 12V instruments (B&G Hydra or other), another for 12V VHF and the third for 12V accessories like the AM/FM Stereo and cigarette lighter. Each of these has a maximum rated output of 8 amps.

The IC M802 requires a maximum of 30 amps in Transmit...3 amps in Receive.

Your installation is not only wrong, it is likely dangerous.

Bill
BeBe



On Sat, Nov 30, 2013 at 1:39 PM, Richard Piller <richard03801@...> wrote:
 

Hi Eric.
Sorry for the text I did this using a speakerphone dictating and it did not come out right. 
On my factory supplied single side band there are several sailor 24 to 12 V inverters under the net station they power the SSB.  My Icom 8O2 is a 12 volt unit and it works perfectly using the Amel supplied Sailor units installation. 
1998 SM 209 in Newport RI for sale. 
Fair winds 

Regards
Capt Richard Piller

On Nov 30, 2013, at 7:09, Richard03801 <richard03801@...> wrote:

 

Hi Eric. When your essay 209 Amelle supplied the boat with sailor 24 to 12 V inverters. They also supplied the boat with a single sideband I've change that to an 802 with no issues powering it from that same sailor converter. We have had no issues up-and-down the single side band and ham bands. 
Fairwinds to all. 
SM 209 for sale in Newport Rhode Island. 
Richard Piller

On Nov 29, 2013, at 20:20, Sailorman <kimberlite@...> wrote:

 

I do not believe the 12 v sailor would supply sufficient amps for a SSB radio. I have a very hefty converter made by ICOM that Amel installed under the Nav station. This item is now discontinue. However there are a lot of high amp 24-12 volt electronic converters on the market.

Fair Winds

Eric

Amel Super Maramu #376 Kimberlite

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor. 

In the ass locker there should be a copper foil for grounding the A140 tuner. 

Regards 

Richard Piller

 


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system. 

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

 

Any help understanding this is much appreciated.

 

Terry&Dena

SV Libby SM#196

San Diego



I am using the Free version of SPAMfighter.
SPAMfighter has removed 2389 of my spam emails to date.

Do you have a slow PC? Try a free scan!



Re: [Amel] Main Sail Battens Super Maramu

karkauai
 

I will do that Bill. I'll let you know what I find.
Kent


On Nov 29, 2013, at 11:44 PM, "Bill & Judy Rouse" <yahoogroups@...> wrote:

 

Kent, 

I am fairly certain about this issue and have discussed this with several others who much more experienced than I am.

Assuming that you have a triradial cut main sail, where the top and the middle sections of the sail are joined you will see chafing fairly soon because of the added dimension of the furled sail caused by the battens. 

I assume that most people that want extra trim and flatness will first invest in a triradial cut main sail, before they invest in battens.

If you have battens, you should lower your main and have a look at the point where the top and middle sections are joined...I think you will be surprised.

Bill
BeBe


On Fri, Nov 29, 2013 at 7:55 PM, Jacques Paulus <jacquesetannick.paulus@...> wrote:
 

Hi,
 
I'm just looking for new sails for my Santorin and, after consultation of +/- 10 sailmakers and a lot of different proposals, I choiced for a complete set of sails (Genoa, main sail and mizzen sail) with DCX tissue and triradial cut, by UK Sailmakers for the price of 6430€ TTC. Very attractive price.
 
Dacron cross cut is the lowest quality you can get. the less expensive choice ($)
 
Then you have radial Hydranet (Dacron + Fibers) option, from Dimension Polyant, with a triradial cut, but it's relatively expensive ($$$) and you got heavy but resistant sails which are more stable in their forms but will loose their forms after +/- 5 years. Valid choice for round the world cruising.
 
Then you have DCX product, from Dimension Polyant also, with a mylar kernel + carbon fibers, which are more stable and lighter than Hydranet, but at the cost of less resistance at long time. It's my choice, for performant cruising and more velocity in light airs. It's cheaper than Hydranet ($$), 6430€ TTC, in my case (price valid for ordering before 15th of december). It's my choice for performant cruising.
 
Then you have all the carbon/mylar/aramid solutions which are lighter and more performant but at the cost of a relatively higher fagility. Those solutions are also more expansive ($$$$). The choice for competition sailing.
 
Your choice must depend of your program. For example (My idea):
Round the world ==> Dacron or Hydranet (better), Cross cut or triradial (better).
Cruising in Mediterranea ==> DCX
Cruising with a bit of competition ==> DCX
Cruising in Atlantic  ==> Hydranet or DCX
Competition ==> More sophisticated
 
Have a look at UK Sailmakers: www.uksailmakers.com
 
Best regards,
 
Jacques Paulus


--
Jacques et Annick Paulus
 
rue de Saint-Ghislain 15/207          Bateau Paranos
1348 Louvain-La-Neuve                 Capitainerie de Saint-Mandrier
Belgique                                          2, quai Séverine
                                                        83430 Saint-Mandrier
                                                        France
 
Tél Jacques: +32 495 20 10 54      Tél en France: +33 6 27 86 66 14
Tél Annick: +32 498 52 78 31
 



Re: [Amel] Isolated or non Isolated DC to DC Convertor

Herbert Lackner
 

Hi Attilio,

 

Thx for the information, I will try the KISS-SSB, the Tuner will be mounted at the same point as you have it. If the KISS-SSB is enough grounding then I will not connect it to the rudder, but will check how it works.

 

I will install the SCS pactor 3 modem and will isolate the backstay when Lorenzo changes the rigging in spring.

 

My Call-Sign is  OE3HLA

 

Fair winds

 

Herbert

SN #120, Kali Mera, Croatia

.

 

 

 

Von: amelyachtowners@... [mailto:amelyachtowners@...] Im Auftrag von Siviero Attilio
Gesendet: Freitag, 29. November 2013 19:10
An: Briggs Craig
Betreff: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Herbert,

 

I Installed on my Santorin #84 "Sisila" an Icom 718 with an Icom AT141 automatic tuner and Pactor modem, and it works well with a KISS-SSB couterpoise to act as ground plane (see http://www.kiss-ssb.com/index.html, it costs 125€ including shipment). My "techie", an ham radio expert much more than me, also connected the ground to the rudder, as you think to do.

 

The advantage to have the kiss-ssb is that you have a ground plane also out of water, when you are on the hard, and the ground plane is more "consistent".

 

The antenna is an insulated backstay, some 10m between insulators - very expensive piece of shroud, some 500€  -,  it acts as a lambda/4 whip antenna, which with the ground plane works as a lambda/2 dipole antenna 20m long, perfect fro 40m band without any tuning, and also for 20m band, the most crowded by ham radio enthusiasts and short-wave listeners (SWLs), so when you navigate you have always somebody ready to listen to you.

 

Your rig seems to be better than mine, at least more powerful, and also the tuner is OK, but be careful to place the tuner as close as possible to the antenna, otherwise you tune the feeding line more than the antenna. Mauro put it in the lazarete, just below the antenna, and the KISS-SSB runs around the lazarete ceiling, just around the top opening.

 

The tuner permits you to use the antenna also for 80m and 160m, the low bands most used at night, with the Pactor I was able to do emails from everywhere, via Winlink.

 

My American call-sign is KD2ECB, General Class; the italian one is in course of assignment, Extra Class, in the next months (italian bureaucracy is back in middle-age time....).

 

Hope this helps, fai winds

 

 

Attilio & Maria Siviero 
Amel Santorin#84 "Sisila"

 

Il giorno 29/nov/2013, alle ore 18:21, Herbert Lackner <herbert@...> ha scritto:



 

 

We will install a Kenwood 480HX SSB with an MFJ 993BRT automatic antenna tuner on our SN #120. We do not have a HF ground plate (I think that was an only an option for the SN). To ground the antenna Tuner I planned to connect it to the rudder shaft where the thick yellow/green cables are connected (I assume they are for the VHF grounding).

 

http://groups.yahoo.com/neo/groups/amelyachtowners/photos/albums/329276585

 

is that ok?  (do not want to have a   Swiss cheese rudder shaft J )

 

Thanks, Herbert

SN #120 Kali Mera, Sukosan

 

 

Von: amelyachtowners@... [mailto:amelyachtowners@...] Im Auftrag von Joel F Potter
Gesendet: Freitag, 29. November 2013 17:16
An: amelyachtowners@...
Betreff: RE: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

All Amel boats since at least as far  back as the Meltem in the 1970’s has a floating/full earth return 12 and/or 24 volt direct current system. Simply, this means all DC power comes out of the battery, to the device that needs the power, AND THEN RETURN COMPLETRLY AND DIRECTLY TO TH BATTERY BANK. This prevents many possibilities of corrosion and keeps noisy things like fans and fridge motors from ‘talking’ to your radio, stereo and so forth. It is extremely important to never corrupt this system as, depending on how much power has been corrupted, you can suffer serious problems with electrolysis and feedback.

 

All Amel’s that had a ICOM SSB installed at the shipyard came with a special ICOM 24-12 volt transformer/converter with an isolated negative to accommodate the floating/full earth return. If you provided your own equipment for them to install, they always insisted on the special isolated negative transformer and would not install transformers that were not compliant with this. SSB’s require a healthy amount of power that can cause trouble if not integrated into the DC system correctly.

 

If your Amel has been modified by those unknowing of the type of DC system it has, change it back to the way God and Captain Amel ( and Jacques Carteau! ) conceived it.

 

If an electrician or electronics installer comes to your boat, be sure to ask him if he is familiar with a floating DC systems. His answer should be in the affirmative with a compliment that this is the best way to power DC gear. If he says “no”, “that’s stupid”, or “Whuzzat”, send him away. Trust me, you don’t want to screw around with this. I sold a SM 53 boat where the rudder shaft was Swiss cheese because of an improper SSB install. When we dropped the rudder to replace it, I bent the shaft in half with my bare hands. They guy who bought this boat still owns it, I believe, and I invite you to chime in here. He spent $3500 to repair the wiring and more to replace the rudder shaft here in Fort Lauderdale. Amel was a big help with technical assistance but Carteau admonished me to not screw around with the DC electrical system even though it wasn’t I who ever messed with any DC system on an Amel.    

 

All the best,

Joel

 

 

Joel F. Potter - Cruising Yacht Specialist, LLC

Amel's Sole Associate for the Americas

Mailing Address:  401 East Las Olas Boulevard #130-126

Fort Lauderdale, Florida  33301

Phone:  (954) 462-5869   Cell:  (954) 812-2485

Email:  jfpottercys@...

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of Richard03801
Sent: Friday, November 29, 2013 10:27 AM
To: amelyachtowners@...
Subject: Re: [Amel] Isolated or non Isolated DC to DC Convertor

 

 

Hi. Under the navigation station the doors on the right side have 12 V power supplies that should be your source for 12 V coming off the 24 bank. I believe the brand name is sailor. 

In the ass locker there should be a copper foil for grounding the A140 tuner. 

Regards 

Richard Piller

 

Cell 603 767 5330


On Nov 29, 2013, at 8:27, <terencesingh@...> wrote:

 

Some advise is needed with respect to the replacement of the factory installed 24VDC to 12VDC DC to DC Convertor.

We are about to install our Icom M802/AT140 SSB Radio.

The existing 12VDC wiring system is quite mess and includes a separate 12VDC battery that was used for the previous SSB installation.

I have heard that an Isolated ground DC to DC convertor should be used. These are used in systems that are ether positive ground or with floating ground systems.

I am pretty sure that our vessel (SM#196) does not have a positive ground system. 

Did Amel built their boats with a floating ground?

What does this mean with respect to installing a DC to DC convertor?

What are the ramifications for using a non isolated DC to DC convertor?

 

Any help understanding this is much appreciated.

 

Terry&Dena

SV Libby SM#196

San Diego