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Lynn Coffelt
 
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Default Testing VHF antenna with ohm meter


"Vinny" wrote in message
. ..
Hello,



I suspect that my VHF antenna is shot, I think it's open circuit.

I'm looking for a quick and easy way to verify it with an ohm meter.

I know that the 50 ohm impedance is an AC impedance

at RF frequencies. But I'm guessing a DC ohm meter should

measure something between a few 10s of ohms to a few hundreds

of ohms if the antenna was good.

I'm measuring ~ 10 meg ohms.



Time for a new antenna?

Depending on the design, the VHF antennas that I'm familiar with will
read either "open" or "shorted" with an Ohmmeter. 10 megohms is a strange
reading for an antenna. Almost sounds like one that is supposed to read
"open" but has a little (or a lot) of water/corrosion someplace where it
doesn't do any good at all.
Old Chief Lynn, W7LTQ