Hello Ed, > I am trying it now but haven't figured out how to use it yet. It looks > like the RX from the radio and the speaker output use one sound card and > the TX output and mic use the second sound card. Are you speaking of Multidem or Multipsk? On Multipsk, the main sound card manages input from or output to the transceiver, whereas the "Auxiliary sound card" manages the speaker from which you are going to listen to the demodulated SdR sound (at least for control as it is not strictly indispensable for digital communications).
> I tried to select a sampling frequency of 12KHz but now it reports an > error and does not allow me to correct the error. Surely, the SdR function works in RX and TX with a physical sound-card. The standard sampling frequency on Multipsk in SdR is 48 KHz (16 bits stereo) not 12 KHz . A physical sound card (even an onboard one) is preferible (if you have the choice). 73 Patrick ----- Original Message ----- From: "Ed Hekman" <ehek...@cox.net> To: <digitalradio@yahoogroups.com> Sent: Wednesday, June 24, 2009 7:08 AM Subject: [digitalradio] Re: The best of all features - SdR > --- In digitalradio@yahoogroups.com, "Patrick Lindecker" <f6...@...> > wrote: >> >> Hello Ed and all, >> >> For information, with the last version of Multipsk (4.14), you can decode >> 48 >> KHz (for standard sound cards) up to 192 KHz (with specific sound cards) >> if >> you have a SdR. >> >> Note: with standard sound cards, the noise floor must be around the 10th >> bit >> (about 1/1000 of the full scale), so the level at the SdR output must not >> too much low. >> >> 73 >> Patrick > > Patrick, > > This sounds like it is exactly what I am looking for. I would like to be > able to operate digital modes with the SDR without using the VAC program. > > I am trying it now but haven't figured out how to use it yet. It looks > like the RX from the radio and the speaker output use one sound card and > the TX output and mic use the second sound card. > > I tried to select a sampling frequency of 12KHz but now it reports an > error and does not allow me to correct the error. > > I will continue experimenting with it. > > Ed > WB6YTE > > > > ------------------------------------ > > Announce your digital presence via our Interactive Sked Pages at > http://www.obriensweb.com/sked > > Recommended digital mode software: Winwarbler, FLDIGI, DM780, or Multipsk > Logging Software: DXKeeper or Ham Radio Deluxe. > > > > Yahoo! Groups Links > > > > >
