Hi, Bob. SDR-1000 Software requires a minimum 800 MHz computer with 512 MB ram running Windows 2000 or XP. See www.flex-radio.com. Works fine on my XP machine using an unsupported Sound Blaster 5.1 PCI card.
The www.AMQRP.org SoftRock 40 kits are sold out but boards and some parts are still available. see http://groups.yahoo.com/group/softrock40/. The USB port is only used to provide 5 volt power. Input is into a sound card for A to D conversion. The software performs demodulation, filtering etc. Here is a simple circuit to convert any receiver's IF to audio for input into a sound card. http://www.detomasi.it/en/project.html I2PHD's similar software package is available from www.sdradio.org and, I believe, runs under Windows 98. I just refurbished a Dell Dimension 2100 computer (900 Mhz)that a neighbor had trashed for my father's use. They're avilable on e-Bay for around $100. Dick Patten --- In [email protected], Bob Macklin <[EMAIL PROTECTED]> wrote: > > I am a retired EE. I am not in a position to buy a new > computer. I have a 1998 PII and a 1998 PIII. Both are > 450Mhz machines. Neither have built in sound cards. > Both are using PCI SB cards. > > Will this software work with a USB sound interface? > > Bob Macklin > K5MYJ > Seatte, Wa. > > --- patt896 <[EMAIL PROTECTED]> wrote: > > > 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! Music Unlimited > Access over 1 million songs. Try it free. > http://music.yahoo.com/unlimited/ > ------------------------ 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/
