Re: Something for Electrical Engineers, Experts, and Wannabes like me


Eric Freedman <kimberlite@...>
 

Clive,

I used to build waveguide, slotted line , and rotary joints for different agencies. If you send a few hundred megawatt pulse down a rotary joint and there is .00001 ohms insertion loss. They will return a ball of aluminum to you.

It was interesting making stuff for JPL and the DEW line.

Fair Winds

Eric

 

 

From: main@AmelYachtOwners.groups.io On Behalf Of Clive Chapman
Sent: Saturday, November 27, 2021 4:58 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Something for Electrical Engineers, Experts, and Wannabes like me

 

I haven’t had the chance to watch the video yet, but as an electronics engineer as training, if you want to blow your birdy brains try understanding the propagation of RF along a coax cable…then try how an aerial works…and for Einstein level, try RF down a waveguide as used on most radars. Nearly forty years on I’m still struggling with the concept that energy would rather travel down the air in the middle of a bit of waveguide than the solid bit of conductor that surrounds it!

 

Regards

Clive

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