vhf antenna

5/8 vertical is better :)

Are you really on VHF with your FM92 (must mean you have an Amateur Licence) or do you have one which has been converted to cover UHF CB bands?

Mike Harding

and if you have a licence you would not be asking the question. you would know the answer already. just looking up on google, the radio is built for the 2 meter band and there are no cb frequencys there.

More info would be helpful

Owen

Mike & Owen, there is, was an allocation of one frequency around 160mHz that was for 4wd use. Think that LROC may be the only ones using it? I did have an FM92 .bin file for it.

Never heard of it Tony, got any more into? Equipment would have to be "Type Approved" I imagine? Which would make it next to impossible/very expensive to obtain?

My searches did indicate some interesting frequency allocations for VKS737 though:

Site Link

Mike Harding

Yes it was Lroc - they get much better range of course around the hills , we have forgotten how good VHF could be actually and how poor UHF cb really is.

Had an automatic station on 2m in city and could get data from it almost anywhere (not in valley) within 100km radius running 150w from car.

Robin Miller

>running 150w from car.

Is that a typo? I cannot imagine why anyone would want to use 150W on 2m mobile (I'm struggling to think why you would ever need it) and I dread to think what the power consumption would be.

My FM900 produces about 19W and I can hit the Tasmanian repeaters from about 600m altitude with that.

Mike Harding

That could be the experimental freq you can use on 160megs, in which you'll need a license to use it.

No, not an experimental frequency. I was unaware of such a frequency on VHF
See " target="EOF" class="lbg">www.lrocv.com.au/store/page.pl?id=78 fo some reference. I think that I have the frequency in memory on my FT1500? Never heard anything on it.
Anyway, an un-modified FM92 would operate fine on it, as long as the VCO board holds together.

150w Mike simply because that was legal max , and matched the automatic base station at home, had acceptable coverage.

Transistor's to in the output amp, which I designed - when I worked for Philips.

Robin Miller