[Flexradio] CW bandwidth too wide with PSDR 2.0.22
Hello all, Has anyone experienced a bug with 2.0.22 where the CW bandwidth is almost three times wider than the selected width?? (or this might be shallow skirts issue.) This was NOT an issue with 1.18.5. Tones from Signals outside of the highlighted bandwidth could not be heard except for a click some times, but with PSDR 2.0.22 I hear a distinct tone on signals way outside of the selected BW. Test case: 400hz BW, tried it on 15 and 17m, my rx buffers never changed from 1.18.5. to 2.0.22. CW RX buffer set at 1024 and sample rate is 192kHz. I'm running Core 2 Duo machine with XP and all the latest updates and latest Flex firmware. All help would be appreciated. Dennis k0eoo ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] CW bandwidth too wide with PSDR 2.0.22
The shape factor degrades as you go up in sample rate. This is on the to do list but requires extensive code rewrite to make one shape factor for all rates. Bob N4HY On Sat, Apr 23, 2011 at 12:11 PM, Dennis Petrich radio...@frontiernet.netwrote: Hello all, Has anyone experienced a bug with 2.0.22 where the CW bandwidth is almost three times wider than the selected width?? (or this might be shallow skirts issue.) This was NOT an issue with 1.18.5. Tones from Signals outside of the highlighted bandwidth could not be heard except for a click some times, but with PSDR 2.0.22 I hear a distinct tone on signals way outside of the selected BW. Test case: 400hz BW, tried it on 15 and 17m, my rx buffers never changed from 1.18.5. to 2.0.22. CW RX buffer set at 1024 and sample rate is 192kHz. I'm running Core 2 Duo machine with XP and all the latest updates and latest Flex firmware. All help would be appreciated. Dennis k0eoo ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] CW bandwidth too wide with PSDR 2.0.22
Additional information: My radio is the 5000A and I notice the BW is too wide only on the main RX and not the 2nd RX CW bandwidth is OK on 2nd RX??? Dennis -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Dennis Petrich Sent: Saturday, April 23, 2011 11:12 AM To: 'FlexRadio Reflector' Subject: [Flexradio] CW bandwidth too wide with PSDR 2.0.22 Hello all, Has anyone experienced a bug with 2.0.22 where the CW bandwidth is almost three times wider than the selected width?? (or this might be shallow skirts issue.) This was NOT an issue with 1.18.5. Tones from Signals outside of the highlighted bandwidth could not be heard except for a click some times, but with PSDR 2.0.22 I hear a distinct tone on signals way outside of the selected BW. Test case: 400hz BW, tried it on 15 and 17m, my rx buffers never changed from 1.18.5. to 2.0.22. CW RX buffer set at 1024 and sample rate is 192kHz. I'm running Core 2 Duo machine with XP and all the latest updates and latest Flex firmware. All help would be appreciated. Dennis k0eoo ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] CW bandwidth too wide with PSDR 2.0.22
Understand the issue with shape factor and expanded sample rate but the issue does not happen on the 2nd receiver as I just found out.. Dennis, k0eoo _ From: Bob McGwier [mailto:n...@flex-radio.com] Sent: Saturday, April 23, 2011 11:33 AM To: Dennis Petrich Cc: FlexRadio Reflector Subject: Re: [Flexradio] CW bandwidth too wide with PSDR 2.0.22 The shape factor degrades as you go up in sample rate. This is on the to do list but requires extensive code rewrite to make one shape factor for all rates. Bob N4HY On Sat, Apr 23, 2011 at 12:11 PM, Dennis Petrich radio...@frontiernet.net wrote: Hello all, Has anyone experienced a bug with 2.0.22 where the CW bandwidth is almost three times wider than the selected width?? (or this might be shallow skirts issue.) This was NOT an issue with 1.18.5. Tones from Signals outside of the highlighted bandwidth could not be heard except for a click some times, but with PSDR 2.0.22 I hear a distinct tone on signals way outside of the selected BW. Test case: 400hz BW, tried it on 15 and 17m, my rx buffers never changed from 1.18.5. to 2.0.22. CW RX buffer set at 1024 and sample rate is 192kHz. I'm running Core 2 Duo machine with XP and all the latest updates and latest Flex firmware. All help would be appreciated. Dennis k0eoo ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
