chuck wrote:
Vinny wrote:

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?



Thanks in advance,

Vin



Why do you suspect the antenna is shot?

Are you measuring at the end of 70 feet of coax attached to the antenna
or directly at the antenna terminals?

Chuck

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Try to get a SWR meter. This will mesure the power that go's and gets
back to your transmitter.

--
Geert Maene.

Geert Maene wrote in news:gvvig.474444
:

Try to get a SWR meter. This will mesure the power that go's and gets
back to your transmitter.



http://www.walcottcb.com/valor-v6050...-watt-meter-p-
920.html

Don't forget to get a 3' coax jumper to hook the TX port to your radio.

Mount it permanently next to the radio by using two right-angle coax
adapters male to female. Screw them onto the meter so they go back into
two matching holes in the panel. If you make the holes a tight fit with
the PL-259 coax connectors, no mounting of the little meter is necessary.
Just leave it on the surface between the holes. That way you can check for
RF output power and antenna performance every time you use the radio...IF
the radio isn't mounted out in the weather the meter won't tolerate....

Works great.