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Old January 24th 10, 08:17 PM posted to rec.radio.amateur.homebrew
JIMMIE JIMMIE is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 625
Default jury rigged vhf receiver

On Jan 24, 10:03*am, sorry-spammers ""w9wi\"@(sorry-spammers)"
wrote:
JIMMIE wrote:
I was wanting to listen to VHF/UHF SSB. All of my present UHF/VHF
radios are FM. I was thinking of rigging up a simple downconverter
using a mini circuit mixer and my HP signal generator as the local
oscilator that I can connect in front of my HF rig. I have an antenna
mounted pre- amp that I think should suffice for my front end. Any
foreseeable problems short of keying my transmitter while it is
connected.


Just as an experiment, I once used the mixer & LO in one of my FM rigs. *Just tapped the output of the mixer just before the IF filter, ran it through
a DC-blocking capacitor out to the antenna input of a general-coverage HF receiver. *Tuned the HF rig to 10.7MHz - sure enough, there were the 2m SSB
(and CW) signals. *Worked pretty well.

It was pretty cumbersome to tune though. *Luckily, almost everyone around here is within 5KHz of 144.200...

Didn't take long to get the urge to transmit, at which point I wimped out & bought a multimode rig...

--

Doug Smith W9WI
Pleasant View, TN *EM66


Thats a thought, I might do that with an old mobile unit I have in the
junk box. I think it will rx but the tx is dead. See if I can pick the
signal off right after the first mixer.

Jimmiej