--- In [email protected], "sailingto" <[EMAIL PROTECTED]> wrote: > > Bottom post or top post for this group? I will post this reponse > to top and change to bottom if that is the groups preference.
Hi Ken, there are no firm rules. Personally I use the method of usually interspersing my answers to the relevant parts of the message of the correspondent. A bit more work, but maybe clearer messages. > Thank you for such a quick response Alberto, I am home now and can > check settings and see what they do. One problem I was seeing "LO" > as "Low" rather than "Local Oscilator" - now I understand the use. Maybe I should have noted that in the User Guide... > > AFter much fooling around, switching between 4 different programs - > I FINALY figured to swap the I & Q and now it is correct freq read > out. I noted as I turned the VFO upscale, the CW signal on Winrad > would go down scale..... Hmmmm, decided to swap I&Q, then it seems > to read freq where it should with the LO set to 7.056 as it should Good. Swapping I and Q does not get rid of the image. It just mirror the frequency scale around its central point. So there is the possibility that you are convinced to receive the right signal at the right frequency, but instead you are receiving the image frequency, mirrored at the right spot because of the I/Q swapping. There is a way to be certain of having the I/Q connected correctly. On 40m you can find only LSB signals. If you have a correct demodulation with the LSB button in Winrad pushed down, then I/Q are ok. Otherwise, if you have to set Winrad for USB to listen to signals on 40m, then either swap physically the two channels to the sound card, or swap them logically with the choice in Winrad itself. > > Alberto, I thank you again for providing a GREAT program - I have > been comparing to PowerSDR and darn it, I do think I hear a LOT > more with Winrad than PowerSDR - just seems to pull the signals out > better. Thank you Ken. I cannot comment on this, as I haven't ever made a direct comparison. Now you have stimulated my curiosity, and probably I will... :-) 73 Alberto I2PHD
