Most VHF antenna's have 0 ohms to ground The resistance you are
reading is the round trip up and down the mast of the coax.

Don't worry about it. I would expect to see a lot of post here
refuting the bad advice that Rodney gave you. sorry Rodney but if you
don't know what you are talking about maybe you should not say
anything and learn .


GW



(Ron Patterson) wrote in message . com...
I have a 34 foot sloop which I bought six years ago on Kentucky Lake
near Paducah. I motored it up river to Guntersville Lake in North
Alabama. I sailed her on Guntersville Lake on the very few days that I
had off and the wind was blowing. That however, was no more than a few
days a year. Now I am retiring in June and am going to take her down
the Tenn-Tom Waterway to her new home in Pensacola, Florida. There we
will sail and fish for the rest of our days.

When I bought the boat it had a pretty good VHF radio with the antenna
mounted at the top of the mast. It worked fine when we were bringing
the boat down to Alabama. But a few months back I tried the radio for
the first time in six years. It would not even power up. Not to worry,
I bought a new Icom VHF radio.

Before installing it I decided to check the antenna resistance from
the center of the coax to the shield. I got about two and one half
ohms. I was thinking it should be an open. What should the resistance
be, measured from the radio end, from the center conductor to the
shield? Someone please help me because I don't want to hook up the
radio and blow the transmitter. Is this a danger? Or perhaps I have
nothing to worry about.

Thanks in advance

Ron Patterson

That's yahoo.com