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

sorry-spammers wrote:
Luckily, almost everyone
around here is within 5KHz of 144.200...




"Lucky" depends on how many locals there are If you have 10 or 20
local weak signal VHFers, it could get a bit messy

Scott, N0EDV
EN45fa

Scott wrote:
sorry-spammers wrote:
Luckily, almost everyone
around here is within 5KHz of 144.200...




"Lucky" depends on how many locals there are If you have 10 or 20
local weak signal VHFers, it could get a bit messy

Around here, it was in fact lucky.....

(managed an entire 15 QSOs in this weekend's contest, as a rover operation. (admittedly only two grids...))

--

Doug Smith W9WI
Pleasant View, TN EM66

sorry-spammers wrote:


(managed an entire 15 QSOs in this weekend's contest, as a rover
operation. (admittedly only two grids...))


Yes, the bands were kinda flat. Plus, we had RAIN on Saturday and wet
snow on Sunday here in WI (which REALLY sucks)...Sunday brought high SWR
on the 6M antenna so I couldn't use it and didn't hear a peep on 2M.
And with the crummy precip, I had no desire to rove or set up the
portable antennas on 222, 432, 902 or 10 GHz....

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