On Thu, 20 Oct 2005 23:35:01 -0700, Tamaroak
wrote:

I have two VHF radios, both of which have a PA and foghorn mode and will
send a 20 watt signal into a horn mounted on my flybridge. Standard
Horizon says I can't just hook the two of them to the same horn becxause
the one radio will backfeed into the other, causing it to be harmed.

The solution is to get two diodes and wire them on the + wire before it
gets to the horn.

Question: What kind, size, specifications do I use for said diode? The
guy at Radio Shack looked at me like I was from Mars, when I asked him this.

Capt. Jeff

I don't think you will be able to do this Capt' Jeff since the output
is likely to be AC.

Is there no way to mount a second PA speaker? Also, why is it you
need the PA speaker for both radios? I am guessing that one is
mounted topside and the other below, but of course may be wrong.

Rob


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