"Richard" wrote in message
...
Hi. I need to look at the FR50B user manual. If anyone is willing to email
me the manual, please do. Much appreciated. Thanks.
My email:
Please remove the word "GARBAGE". Thanks.
I'd really like a copy of the user manual, but if that does not materialise,
anyone know the operation of the FR50B?
This is what I THINK it is:
It's a double conversion reciever thus:
\|/RFin RF AMP---- 1st MIX ---- 5173.9 Khz FILTER --
|
L.Osc (VFO)
---------------------- 2nd -----455 Khz FILTER
MIX
|
HETERODYNE OSC (5628.9 Khz)
1st IF = 5173.9 Khz
2nd IF = 455 Khz
It's the frequencies that I'm after for each band. To work them out I need
the mixing details.
I think the mixing details a
80 and 40m: 1st IF = L.O - RF in
2nd IF = HET OSC - 1st IF
20.40.12.10m: 1st IF = RF in - L.O.
2nd IF = HET OSC - 1st IF
Can anyone please confirm this? TIA.