Hi ?Jerry, I'm using another radio to confirm this (ICOM 706) into a Dummyload ..... SDR ... Software defined Rubbish ?.. Ha ?73 my friend .
On Wed, 8 Feb 2017 at 21:49, Jerry Gaffke via Groups.Io
<jgaffke@...> wrote:
You sound like you know what you are doing, but it might be worth asking: How do you know it is receiving USB when using the SDR VFO??
You might redo your measurements, reading the VFO frequency at the Q7 collector, and also the BFO frequency at the Q11 emitter. Make sure the VFO is around 5mhz, and that the BFO doesn't somehow get shifted down in frequency by 3khz or so from its nominal 12mhz value when you drape that SDR VFO cable over the top of it. ?Verify that you are receiving the same 40m amateur signals (not something out of band, not some AM SW broadcaster), but the SDR VFO flips the received signal from LSB to USB. ?
Then bury the whole kit deep somewhere. ?Outside the churchyard. ?
Jerry, KE7ER
On Wed, Feb 8, 2017 at 01:11 pm, Marc Jones wrote:
It's very strange ..
?
Marc Jones