Re: Mobile communications - 4G, WiFi
Those directional antennas generally have a +/- 3 degree plane off vertical. Using the old (and very handy) 1 in 60 rule (1 degree at 60nm is equal to a distance across that arc of 1 nautical mile or 6000 feet).it’s easy to calculate that if you are say 1/10 mile from the source antennas, then you can be as much as 30 feet off plane and still get a decent signal. ( 6000/ 60 / 10 * 3 degrees = 30’) I’m not sure that I’d put the directional antenna on top of the Mizzen as the extra height isn’t doing you any favours up really close but Eric has a good solution (at say 15’ off the water) as that would easily allow you to hit an antenna at that elevation but also up to 45 in at that distance (the further out you are, the less it’s a problem- 1/2 mile would be 150’, 1 mile is 300, etc. ’Anyway, unless you are sitting right on top of the source antenna, in which case your computers would likely get Wi-Fi anyway, it won’t make much difference where you mount it. The range is still likely to be fairly close just because of the signal strength so unlike VHF (or AIS), boosting your antenna to get additional line of sight isn’t going to make much difference anyway.
Brent Cameron, Future Amel owner & Amel Owner's Registry Moderator
On Jan 22, 2020, 10:27 AM -0500, Ryan Meador <ryan.d.meador@...>, wrote:
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Brent Cameron Future Amel Owner & Amel Owner Registry Moderator Oro-Medonte, Ontario, Canada
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