One of the reasons I'm interested in having ADF capability is to find
transmitters on Marine VHF. I participate in Coast Guard Auxiliary Safety
Patrols of San Diego Bay. Besides the occasional child playing with the
radio, it's not unusual for a microphone to be stuck in the transmit
position. Having ADF would help in locating the source.
The buzzing would be annoying, but I don't expect to have the ADF in
operation at all times. I guess another option would be to have a second
radio just for the ADF and leave the volume turned low on that radio, to use
it only for ADF and not for communications.

"William G. Andersen" wrote in message
news:R_2tc.29384$wa.27813@fed1read07...
Thanks to both of you for the information. Now, how do I explain yet
another
$500 worth of boating toys to my wife (the family financier)?...

"Jerry" wrote in message
...
I think that if you check closer you will find that the 525 uses an
Eight-element Adcock DF antenna in addition to your existing VHF
antenna.
I
have one and have found it to be reliable and accurate withing the
published
specs: +/- 10 degrees. This system does introduce a buzzing sound into
your
audio that you may or may not find annoying. In an area with a lot of
radio
chatter going on, the buzz gets on my nerves and I will frequently turn
the
ADF off. Normally I keep it on.



"William G. Andersen" wrote in message
news:_iJsc.21310$wa.12601@fed1read07...
Anybody use a SiTex 525 VHF/ADF Adapter?
I'm considering buying one but don't understand how it can work using
only
my existing VHF antenna and can't afford to buy something that is
marginal
at best.
I've been on boats with a Polaris (spelling?) but they're hard to
find.