Re: [Flexradio] TX Phone Fixes
Bret and others: There are two new things in the test branch svn 3122 code. 1) A new image rejection block. The image rejection software very much works as advertised. The automatic calibration is a new development. We are basically testing both of these together. The new automatic calibration requires storing of values in the EEPROM for maximum benefit. We are going to make continuing improvements to the algorithm and roll them out slowly. These will require further changes in the EEPROM so we are providing version numbers inside the EEPROM and, coupled with checksum protection, it is easy to determine if you have done the required calibration. If you have not, a dialog pops up that says please do this. ctrl-shift-P brings up the production form. With the radio started, you hit the image button in the Recever section. This will perform the required computation on all bands and then store the results in the EEPROM. This has nothing at all to do with: 2) We have a renewed the ALC algorithm by fixing a bug, a truly insidious ugly one, and reordering the elements in the TX so that before the compander or compressor are applied, they are not given garbage to operate on. This is the "TX ALC new work". This requires no calibration at all but you MAY INDEED need to change the settings for operation of CPDR, Leveler, Compressor, and Flex itself may wish to recalibrate what it means by "DX settings". That is not done in the test branch. That is why it is in test and not in trunk. In 1), if you have RX2 installed, it will gripe you have not done that work as well and request that you hit ctrl-shift-R and do the same, while running, hit the Image button and it will perform the required calibrations. 1) and 2) both apply to Flex 3000 and Flex 5000. RX2 only applies to the 5000. If you get a big red X and NAN, there is still an unexpected condition we did NOT test for when applying the old values in the EEPROM. It was my request that if it was found you had not done the calibration that NO VALUES from the EEPROM involved in image rejection were to be used and that (0,0) be passed to the new image rejection (leaving you with NO image rejection) until you calibrate. If you get one of the big boxes with a button that says Details, please hit Details, copy and pase in an email TO ERIC. This is a GUI/control issue and not a dsp/sdr issue. Thanks for testing. This is a little earlier than we were ready to announce this because it is clearly in alpha condition but sometimes, you just go with the flow and put some sugar with your sour berries and make jam. 73's Bob N4HY Bret Mills wrote: SO Bob do we need to recalibrate the whole radio or just the tx or what? When I did the Receiver image (CTRL-Shift-P) got the NaN error when it tried to write the Eprom and the big red X in the Panadapter display. In the words of Johnny 5 "NEED INPUT" Thanks Bret WX7Y -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. "You don't need to see the whole staircase, just take the first step.", MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ 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.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] TX Phone Fixes
Do you have the latest SVN version? Some of the early ones a day or so ago were doing this. -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Bret Mills Sent: Sunday, May 31, 2009 11:21 AM To: 'Bob McGwier'; john_eck...@agilent.com Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] TX Phone Fixes SO Bob do we need to recalibrate the whole radio or just the tx or what? When I did the Receiver image (CTRL-Shift-P) got the NaN error when it tried to write the Eprom and the big red X in the Panadapter display. In the words of Johnny 5 "NEED INPUT" Thanks Bret WX7Y -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Bob McGwier Sent: Sunday, May 31, 2009 7:37 AM To: john_eck...@agilent.com Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] TX Phone Fixes We all owe John our eternal gratitude for finding serious bugs in the ALC system that I have fixed (ending overshoot and some internal ghosts/IMD forever).He put some serious test equipment on the job (that I did not have at my disposal) and within literally a few hours of studying his documentation and looking at the code, the problem was fixed. Much to my chagrin, his first email on the subject wound up in one of the cascaded bit buckets (spam filters) that protect me from the world. Gerald then showed me the document while I was in the middle of doing the first round of the wideband IQ work (also available in the test branch) and it just slipped my mind until a month ago. In an attempt to eek out the last measure of good sounding high performance TX, John suggested this new ordering and did his own version of the reorder. It does indeed sound great. It his MEASURABLE lower in band IMD (the transmit filters are so steep it had to be in band from the DSP). This is the test branch, svn 3122 and higher. It has new ALC, wideband image reject, and much more. WARNING WARNING WARNING, DANGER WILL ROBINSON. The image reject in the new code requires you to recalibrate your radio and store values in the EEPROM just like now. There is no easy mapping between old and new so the old goes away and the new replaces it. Once you do this, you will be unable to get good image rejection upon returning to the trunk or 1.18.0 Release without recalibration again. This can be a really tedious process. The new algorithm is blistering fast but to go back, you have to do the "old stuff". The wideband image reject then dynamically tunes to signals on the band from this starting point. If things go well, this will be in the new release, and it appears to be a complete winner so far. So if you do not understand what I am talking about in this just finished pseudo-English paragraph, DO NOT USE THE TEST BRANCH. We really cannot be bugging Dudley, et. al. with support issues on this test code. They do not have sufficient hours in the day. Bob N4HY john_eck...@agilent.com wrote: > As of svn 3122 the phone tx performance of PowerSDR is greatly > improved (IMHO). The tx alc is working like a champ. > You can drive your linear harder without it tripping. The compressor > (DX Button) and compander (CPDR) sound great. > > To set up the audio, set the TX Meter to 'ALC Comp' and adjust the mic gain until you get 2 to 3 db of alc compression > on voice peaks. Then you can run 3 to 5 db of 'DX' for full sounding > high quality rag chew audio. Or run it all the way to > 10 to bust through the pile ups. > > Let us know what you think. > > > > 73, > > John > k2ox > > > > ___ > 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.flex-radio.com/ Homepage: http://www.flex-radio.com/ > > -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. "You don't need to see the whole staircase, just take the first step.", MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ 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.flex-radio.com/ Homepage: http://www.flex-radio.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:/
Re: [Flexradio] TX Phone Fixes
SO Bob do we need to recalibrate the whole radio or just the tx or what? When I did the Receiver image (CTRL-Shift-P) got the NaN error when it tried to write the Eprom and the big red X in the Panadapter display. In the words of Johnny 5 "NEED INPUT" Thanks Bret WX7Y -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Bob McGwier Sent: Sunday, May 31, 2009 7:37 AM To: john_eck...@agilent.com Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] TX Phone Fixes We all owe John our eternal gratitude for finding serious bugs in the ALC system that I have fixed (ending overshoot and some internal ghosts/IMD forever).He put some serious test equipment on the job (that I did not have at my disposal) and within literally a few hours of studying his documentation and looking at the code, the problem was fixed. Much to my chagrin, his first email on the subject wound up in one of the cascaded bit buckets (spam filters) that protect me from the world. Gerald then showed me the document while I was in the middle of doing the first round of the wideband IQ work (also available in the test branch) and it just slipped my mind until a month ago. In an attempt to eek out the last measure of good sounding high performance TX, John suggested this new ordering and did his own version of the reorder. It does indeed sound great. It his MEASURABLE lower in band IMD (the transmit filters are so steep it had to be in band from the DSP). This is the test branch, svn 3122 and higher. It has new ALC, wideband image reject, and much more. WARNING WARNING WARNING, DANGER WILL ROBINSON. The image reject in the new code requires you to recalibrate your radio and store values in the EEPROM just like now. There is no easy mapping between old and new so the old goes away and the new replaces it. Once you do this, you will be unable to get good image rejection upon returning to the trunk or 1.18.0 Release without recalibration again. This can be a really tedious process. The new algorithm is blistering fast but to go back, you have to do the "old stuff". The wideband image reject then dynamically tunes to signals on the band from this starting point. If things go well, this will be in the new release, and it appears to be a complete winner so far. So if you do not understand what I am talking about in this just finished pseudo-English paragraph, DO NOT USE THE TEST BRANCH. We really cannot be bugging Dudley, et. al. with support issues on this test code. They do not have sufficient hours in the day. Bob N4HY john_eck...@agilent.com wrote: > As of svn 3122 the phone tx performance of PowerSDR is greatly improved (IMHO). The tx alc is working like a champ. > You can drive your linear harder without it tripping. The compressor (DX Button) and compander (CPDR) sound great. > > To set up the audio, set the TX Meter to 'ALC Comp' and adjust the mic gain until you get 2 to 3 db of alc compression > on voice peaks. Then you can run 3 to 5 db of 'DX' for full sounding high quality rag chew audio. Or run it all the way to > 10 to bust through the pile ups. > > Let us know what you think. > > > > 73, > > John > k2ox > > > > ___ > 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.flex-radio.com/ Homepage: http://www.flex-radio.com/ > > -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. "You don't need to see the whole staircase, just take the first step.", MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ 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.flex-radio.com/ Homepage: http://www.flex-radio.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.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] TX Phone Fixes
I am running v1.19.1 svn 3122. I allowed for a new database, etc. The warning window titled "RX1 Image Calibration Required" keeps coming up. I press Ctrl+Shift+P but nothing happens with the program in stop or start mode. I went through the setup tabs and cannot find anything identifying an Image button. What am I overlooking? 73 Joe -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Bob McGwier Sent: Sunday, May 31, 2009 9:37 AM To: john_eck...@agilent.com Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] TX Phone Fixes We all owe John our eternal gratitude for finding serious bugs in the ALC system that I have fixed (ending overshoot and some internal ghosts/IMD forever).He put some serious test equipment on the job (that I did not have at my disposal) and within literally a few hours of studying his documentation and looking at the code, the problem was fixed. Much to my chagrin, his first email on the subject wound up in one of the cascaded bit buckets (spam filters) that protect me from the world. Gerald then showed me the document while I was in the middle of doing the first round of the wideband IQ work (also available in the test branch) and it just slipped my mind until a month ago. In an attempt to eek out the last measure of good sounding high performance TX, John suggested this new ordering and did his own version of the reorder. It does indeed sound great. It his MEASURABLE lower in band IMD (the transmit filters are so steep it had to be in band from the DSP). This is the test branch, svn 3122 and higher. It has new ALC, wideband image reject, and much more. WARNING WARNING WARNING, DANGER WILL ROBINSON. The image reject in the new code requires you to recalibrate your radio and store values in the EEPROM just like now. There is no easy mapping between old and new so the old goes away and the new replaces it. Once you do this, you will be unable to get good image rejection upon returning to the trunk or 1.18.0 Release without recalibration again. This can be a really tedious process. The new algorithm is blistering fast but to go back, you have to do the "old stuff". The wideband image reject then dynamically tunes to signals on the band from this starting point. If things go well, this will be in the new release, and it appears to be a complete winner so far. So if you do not understand what I am talking about in this just finished pseudo-English paragraph, DO NOT USE THE TEST BRANCH. We really cannot be bugging Dudley, et. al. with support issues on this test code. They do not have sufficient hours in the day. Bob N4HY john_eck...@agilent.com wrote: > As of svn 3122 the phone tx performance of PowerSDR is greatly improved (IMHO). The tx alc is working like a champ. > You can drive your linear harder without it tripping. The compressor (DX Button) and compander (CPDR) sound great. > > To set up the audio, set the TX Meter to 'ALC Comp' and adjust the mic gain until you get 2 to 3 db of alc compression > on voice peaks. Then you can run 3 to 5 db of 'DX' for full sounding high quality rag chew audio. Or run it all the way to > 10 to bust through the pile ups. > > Let us know what you think. > > > > 73, > > John > k2ox > > > > ___ > 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.flex-radio.com/ Homepage: http://www.flex-radio.com/ > > -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. "You don't need to see the whole staircase, just take the first step.", MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ 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.flex-radio.com/ Homepage: http://www.flex-radio.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.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] TX Phone Fixes
We all owe John our eternal gratitude for finding serious bugs in the ALC system that I have fixed (ending overshoot and some internal ghosts/IMD forever).He put some serious test equipment on the job (that I did not have at my disposal) and within literally a few hours of studying his documentation and looking at the code, the problem was fixed. Much to my chagrin, his first email on the subject wound up in one of the cascaded bit buckets (spam filters) that protect me from the world. Gerald then showed me the document while I was in the middle of doing the first round of the wideband IQ work (also available in the test branch) and it just slipped my mind until a month ago. In an attempt to eek out the last measure of good sounding high performance TX, John suggested this new ordering and did his own version of the reorder. It does indeed sound great. It his MEASURABLE lower in band IMD (the transmit filters are so steep it had to be in band from the DSP). This is the test branch, svn 3122 and higher. It has new ALC, wideband image reject, and much more. WARNING WARNING WARNING, DANGER WILL ROBINSON. The image reject in the new code requires you to recalibrate your radio and store values in the EEPROM just like now. There is no easy mapping between old and new so the old goes away and the new replaces it. Once you do this, you will be unable to get good image rejection upon returning to the trunk or 1.18.0 Release without recalibration again. This can be a really tedious process. The new algorithm is blistering fast but to go back, you have to do the "old stuff". The wideband image reject then dynamically tunes to signals on the band from this starting point. If things go well, this will be in the new release, and it appears to be a complete winner so far. So if you do not understand what I am talking about in this just finished pseudo-English paragraph, DO NOT USE THE TEST BRANCH. We really cannot be bugging Dudley, et. al. with support issues on this test code. They do not have sufficient hours in the day. Bob N4HY john_eck...@agilent.com wrote: As of svn 3122 the phone tx performance of PowerSDR is greatly improved (IMHO). The tx alc is working like a champ. You can drive your linear harder without it tripping. The compressor (DX Button) and compander (CPDR) sound great. To set up the audio, set the TX Meter to 'ALC Comp' and adjust the mic gain until you get 2 to 3 db of alc compression on voice peaks. Then you can run 3 to 5 db of 'DX' for full sounding high quality rag chew audio. Or run it all the way to 10 to bust through the pile ups. Let us know what you think. 73, John k2ox ___ 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.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. "You don't need to see the whole staircase, just take the first step.", MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ 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.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] TX Phone Fixes
As of svn 3122 the phone tx performance of PowerSDR is greatly improved (IMHO). The tx alc is working like a champ. You can drive your linear harder without it tripping. The compressor (DX Button) and compander (CPDR) sound great. To set up the audio, set the TX Meter to 'ALC Comp' and adjust the mic gain until you get 2 to 3 db of alc compression on voice peaks. Then you can run 3 to 5 db of 'DX' for full sounding high quality rag chew audio. Or run it all the way to 10 to bust through the pile ups. Let us know what you think. 73, John k2ox ___ 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.flex-radio.com/ Homepage: http://www.flex-radio.com/
