Re: [digitalradio] Re: The best of all features - SdR
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
[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
[digitalradio] Re: The best of all features
Andy, I have started to become acquainted with the DX Labs suite recently since I switched to the DX Keeper logging program. On your recommendation I have installed the entire DX Labs suite and I agree it does have a very wide range of features. The DXView, Pathfinder, PropView and SpotCollector programs are very useful for monitoring the bands to find the openings and to get information on the stations worked or heard. The WinWarbler also appears to have all of the features of interest to me. I think it is amazing that one person, Dave, AA6YQ, can produce this package. And he responds very quickly to all questions about the package. It is too bad that Microsoft is not that responsive. I am probably more of an observer than most. I would like to be able to monitor activity on all bands all the time. For less than $20 per band, a softrock receiver kit can be purchased that monitors up to 96 KHz of spectrum with a relatively inexpensive sound card. Unfortunately I don't have the space or budget for all the computers and montors that would be needed for this. Ed --- In digitalradio@yahoogroups.com, Andy obrien k3uka...@... wrote: Many good points Ed, thanks for taking the time to write your comments. I would like to add that an overlooked application is Winwarbler. Winwarbler only does RTTY (AFSK and FSK) plus BPSK and QPSK 31,63, and 125, but it has in my opinion the best features. It's multi-decoding capabilities and layout are superb. When intergrated with DX keeper and Spotcollector, it is peerless. Andy K3UK On Sat, Jun 20, 2009 at 4:11 AM, Ed Hekmanehek...@... wrote: fldigi comes the closest to replicating the simplicity and ease of use of Digipan but it adds many other modes and features. The ability to open the panoramic window and the logbook separately from the main QSO screen is very nice since I like to be able to decode other transmissions while I am in a QSO. The radio interface is a nice bonus that was setup quite easily for a couple radios. The capability to automatically post to PSK Reporter is a nice feature but I haven't been successful with that yet. The capability to integrate with DXKeeper with a 3rd party bridge is also nice but I haven't succeded with that yet either. And I think the flarq program greatly expands the usefulness to methods of operating beyond the normal one on one QSO. fldigi has been the primary program here since last fall until I acquired a more powerful computer that could more easily handle DM780. One very nice feature of DM780 that I use frequently is the capability to hit a button and have the radio and the program switch the radio frequency and the audio frequency to put the desired signal in the center of the radios narrow band filter. That is a brief synopsys of the highlights of each of the programs for me. Thing to look forward to: Panoramic screen decoding over bandwidths of 24 KHz up to 192 KHz. More SOMR (single operator, multiple radio) capability. Better integration with logging packages across the various programs to a common database on the network.
