Re: [Flexradio] Linux - DttSP question: Commands to listen to AM radio?
Hi Everett, you will need to use both the python script to control the parallel interface to select the band and the DDS frequency. You will need to use the cmdr script to control the jsdr software. To receive an AM signal you would need to send the following commands using the cmdr script: setRXOn 0 setSampleRate 96000 (or 48000 depending on your soundcard) setOsc 0 setFilter -3000 3000 setMode AM This is assuming that you do now want to offset the received frequency from the DDS frequency to move away from the noise at the 0 Hz IF. Hope that helps. Regards, John g0orx/n6lyt Everett Palmer wrote On 05/29/06 08:15,: I am trying to operate my SDR-1000 from Ubuntu Linux with the command line interface. Could some one tell me the commands listening to an AM radio station? Also do I need to use both the cmdr shell script and the pyhw2 python script? Thanks, Everett, KG6RYB ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com -- -- John Melton Sun IT CTO Office: +44 1252 421708 (ext 21708) Mobile: +44 7714 708861 ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Linux - DttSP question: Commands to listen to AM radio?
Bob, I switched to pyhw. I do hear something that sounds like cycling. I played a wav file (ssb.wav from flex-radio) with xmms feeding qjackctl and then jsdr. (On jack I connected alsa-pcm -- sdr- sdr- -- alsa-pcm.) I then started my sdr-1000 and shut down xmms. I also started python and cmdr. On pyhw I executed. execfile(sdr1k-setup.py) (with setDDSFreq(0.810) On cmdr I executed. setRXOn 0 setSampleRate 48000 (I am using a SB MP3+ USB soundcard) setOsc 0 setFilter -3000 3000 setMode AM I didn't hear anything interesting - just something that could be described as cycling at about 1 Hz. Seems like I should have to do something with the qjackctl patch panel to connect up to the sdr-1000. When I used it with the sdr-1000 it was set up the same as I had it with xmms. I know I should just wait for the new code but this seems s close to working. Thanks, Everett, KG6RYB At 04:46 AM 5/29/2006, Robert McGwier wrote: Everett: Do you hear a noise at the output (speakers) that sounds like it is cycling? I used pyhw rather than pyhw2. We are well on our way to replace all of that with code that will talk to all aspects of the radio including amplifier, ATU, and transverter. Bob N4HY Everett Palmer wrote: Hi Ken, I am basing the fact that it is possible to drive the SDR-1000 hardware from Linux on this post from Bob McGwier back in January. The Mini-ITX, running SUSE 9.3 carries Don Imus 660 AM every morning using SDR-1000 number 2 running jsdr, jack. I am trying to use the code in the pyhw2 directory to control the SDR-1000 hardware over the parallel port. I can issue commands and hear the relays click in the SDR-1000 but I have not been successful yet in receiving an AM radio station. There is also another command line interface- cmdr - in the DttSP package but I think that this interface controls just the software - not the hardware. One problem was that ubuntu on my system does not have /dev/parport0. With some help from Bill on teamspeak and my linux guy at work I learned that you can create the port with either: sudo modeprobe ppdev or sudo mknod /dev/parport0 c 99 0 I also did a sudo chown epalmer:epalmer parport0 so I could drive the parallel port from my user account. 73, Everett, KG6RYB -- AMSAT VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP/AMQRP, QRP ARCI, QCWA, FRC. ARRL SDR Wrk Grp Chairman Laziness is the number one inspiration for ingenuity. Guilty as charged! ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Linux - DttSP question: Commands to listen to AM radio?
Everett, when it is running you should see that the alsa-pcm and sdr- are cross connected if you bring up the Connections display in qjackctl (see attached image). You might also want to check that the line input is enabled on the sound card and not the microphone input (I assume you are connected to the line input). John g0orx/n6lyt Everett Palmer wrote On 05/30/06 04:10,: Bob, I switched to pyhw. I do hear something that sounds like cycling. I played a wav file (ssb.wav from flex-radio) with xmms feeding qjackctl and then jsdr. (On jack I connected alsa-pcm -- sdr- sdr- -- alsa-pcm.) I then started my sdr-1000 and shut down xmms. I also started python and cmdr. On pyhw I executed. execfile(sdr1k-setup.py) (with setDDSFreq(0.810) On cmdr I executed. setRXOn 0 setSampleRate 48000 (I am using a SB MP3+ USB soundcard) setOsc 0 setFilter -3000 3000 setMode AM I didn't hear anything interesting - just something that could be described as cycling at about 1 Hz. Seems like I should have to do something with the qjackctl patch panel to connect up to the sdr-1000. When I used it with the sdr-1000 it was set up the same as I had it with xmms. I know I should just wait for the new code but this seems s close to working. Thanks, Everett, KG6RYB At 04:46 AM 5/29/2006, Robert McGwier wrote: Everett: Do you hear a noise at the output (speakers) that sounds like it is cycling? I used pyhw rather than pyhw2. We are well on our way to replace all of that with code that will talk to all aspects of the radio including amplifier, ATU, and transverter. Bob N4HY Everett Palmer wrote: Hi Ken, I am basing the fact that it is possible to drive the SDR-1000 hardware from Linux on this post from Bob McGwier back in January. The Mini-ITX, running SUSE 9.3 carries Don Imus 660 AM every morning using SDR-1000 number 2 running jsdr, jack. I am trying to use the code in the pyhw2 directory to control the SDR-1000 hardware over the parallel port. I can issue commands and hear the relays click in the SDR-1000 but I have not been successful yet in receiving an AM radio station. There is also another command line interface- cmdr - in the DttSP package but I think that this interface controls just the software - not the hardware. One problem was that ubuntu on my system does not have /dev/parport0. With some help from Bill on teamspeak and my linux guy at work I learned that you can create the port with either: sudo modeprobe ppdev or sudo mknod /dev/parport0 c 99 0 I also did a sudo chown epalmer:epalmer parport0 so I could drive the parallel port from my user account. 73, Everett, KG6RYB -- AMSAT VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP/AMQRP, QRP ARCI, QCWA, FRC. ARRL SDR Wrk Grp Chairman Laziness is the number one inspiration for ingenuity. Guilty as charged! ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com -- -- John Melton Sun IT CTO Office: +44 1252 421708 (ext 21708) Mobile: +44 7714 708861 -- next part -- A non-text attachment was scrubbed... Name: snapshot12.png Type: image/png Size: 17010 bytes Desc: not available Url : /pipermail/flexradio_flex-radio.biz/attachments/20060529/c272946f/attachment.png ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
[Flexradio] Linux - DttSP question: Commands to listen to AM radio?
I am trying to operate my SDR-1000 from Ubuntu Linux with the command line interface. Could some one tell me the commands listening to an AM radio station? Also do I need to use both the cmdr shell script and the pyhw2 python script? Thanks, Everett, KG6RYB ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Linux - DttSP question: Commands to listen to AM radio?
Hi Ken, I am basing the fact that it is possible to drive the SDR-1000 hardware from Linux on this post from Bob McGwier back in January. The Mini-ITX, running SUSE 9.3 carries Don Imus 660 AM every morning using SDR-1000 number 2 running jsdr, jack. I am trying to use the code in the pyhw2 directory to control the SDR-1000 hardware over the parallel port. I can issue commands and hear the relays click in the SDR-1000 but I have not been successful yet in receiving an AM radio station. There is also another command line interface- cmdr - in the DttSP package but I think that this interface controls just the software - not the hardware. One problem was that ubuntu on my system does not have /dev/parport0. With some help from Bill on teamspeak and my linux guy at work I learned that you can create the port with either: sudo modeprobe ppdev or sudo mknod /dev/parport0 c 99 0 I also did a sudo chown epalmer:epalmer parport0 so I could drive the parallel port from my user account. 73, Everett, KG6RYB At 10:22 PM 5/28/2006, you wrote: How in the world are you controlling the parallel interface? as far as I know, there aren't any SDR-1000s running on Linux. BK de Ken Everett Palmer wrote: I am trying to operate my SDR-1000 from Ubuntu Linux with the command line interface. Could some one tell me the commands listening to an AM radio station? Also do I need to use both the cmdr shell script and the pyhw2 python script? Thanks, Everett, KG6RYB ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
