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Two radios--one antenna or two?

Old 03-22-2007, 10:17 AM
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Default Two radios--one antenna or two?

I have a VHF splitter to allow two radios to share an antenna. I've never used it.

Besides the benefit of redundancy, what are the pros and cons of one vs. two antennas for a dual VHF setup?

Thanks all.
Old 03-22-2007, 10:20 AM
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Default Re: Two radios--one antenna or two?

If I had a backup radio, I would make sure it had it's own antenna. This provides true redundancy. If you loose your single antenna, both radios are dead.
Old 03-22-2007, 01:43 PM
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Default RE: Two radios--one antenna or two?

I concur completely with the dedicated antenna for each fixed VHF. Just added an Icom M-602 to the M-502, and added a second Digital 529-VW antenna.

Let's go one step further. How about the power supplied to the radios? I installed the M-602 in the upper electronics box, and then fulush-mountedthe M-502 downon the lower electronics display. The M-602 is powered from the house bank, as that is the power fed to the upper box. I used power from the engine harness for the M-502, and it can be powered when either engine is running - just as my instruments can be. Redundant VHFs, separate antennas, and separate power sources.

Finally, I have a four-foot adapter cable that can be used between my Raymarine 102 handheld and either of the fixed antennas...


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