Thanks, Bill. My SR-40 kit arrived yesterday. I've loaded the SR-40 version of SDR-1000 and my single channel Osc/Mixer works ok, but not great. I'd like to be able to use the full tuning range of the standard SDR-1000 code by running the Osc thru the phasing network of R2Pro's UVFO, into a binaural receiver and then into SDR-1000.
I just read a W1FB text on VXOs. Apparently a 3.379 MHz Xtal can only be pulled around 1 KHz. Tried NB6M's experimental two Xtal VXO (http://www.amqrp.org/projects/NB6M%20contestvxos/VXO% 20Experiments.html) without success. Just experimenting while waiting for AA0ZZ to release his new IQ DDS VFO. Dick Patten --- In [email protected], Bill Tracey <[EMAIL PROTECTED]> wrote: > > Dick, > > I'm assuming you've got a quadrature osc/mixer that is centered on 3.379 > MHz (eg - the 3.379 MHz appears at DC in the output of your osc/mixer)? If > so you should be able to use the SoftRock 40 mods to PowerSDR to tune 16 > khz up. The PowerSDR IF is not fixed at 11.025 - it is varied between 9.5 > and 12.5 khz when using SDR 1000 hardware to avoid spurs from the DDS (DDS > is tuned for optimal spur avoidance, software IF is wiggled to > compensate). With the SoftRock mods to the software, we wiggle the IF +/- > 24 khz to tune. I'd think this code will probably work for your > setup. See http://ewjt.com/kd5tfd/sdr1k-notebook/sr40/sw.html for info on > getting the SoftRock mods for PowerSDR. > > Regards, > > Bill (kd5tfd) > > At 09:18 AM 10/9/2005, Dick Patten wrote: > >I built a 3.379 MHz Xtal Osc/Mixer for stand alone use with this > >receiver (3.395 MHz IF; 16 KHz audio). Purchased the Xtal from > >Surplus Sales. Works fine with I2PHD's software. SDR-1000 has a > >fixed IF of 11.025 KHz. Could you point me to a VXO circuit to pull > >the OSC down 5 KHz? thanks > > > >Dick Patten > ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/ELTolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/soft_radio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
