[Flexradio] Tomorrow's the Day.
Tomorrow at 11 AM CST [Noon on the east coast, 9 AM on the west coast, 1700 UTC.]on TEAMSPEAK. Quick start guide for getting setup for Teamspeak: http://kb.flex-radio.com/article.aspx?id=10161 We hope to see you there. Town hall meeting AGENDA Agenda for the Saturday's Nov 4 Town Hall Meeting at 1700 UTC : 1. New official release of PowerSDR software for the SDR-1000 with review of new features since v1.6.2. 2. Strategic software direction for new PowerSDR architecture and supporting development tools. 3. New website and Knowledge Base overview 4. QA from previously emailed questions. Please email questions directly to [EMAIL PROTECTED] as private emails so they can be consolidated. This will make for more efficient use of the meeting time and will also result in better responses. Question can also be posted on our forum at http://forums.flex-radio.com/Topic16-44-1.aspx John P. Basilotto W5GI Marketing and Product Manager FlexRadio Systems Office 512-250-8595 Mobile 512-663-6727 ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-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://www.mail-archive.com/flexradio%40flex-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://www.mail-archive.com/flexradio%40flex-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://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Hey Bob - IQ DC offset hooks
You're correct! No DC path to the QSD. The carrier is coming from the 1/f noise near DC. That will be taken care of when the TX IF gets implemented. I don't think it has anything to do with 1/f noise. TX IF won't fix it. Let's for a moment assume that you're feeding in an 11 kHz tone through I/Q (phased so you generate the upper sideband..) You'll get a nice carrier at DDS Freq+11 kHz, and if the image rejection is set up properly, a very small signal at DDS-11 kHz. BUT, you'll also get feedthrough at DDS Freq, and there's nothing you can do about it with an AC coupled system, because the carrier feedthrough in the QSE is entirely determined by the balance of the 4 switches and the DC on their pins, the latter probably determined by leakage current of the electrolytic capacitors. I looked at some measurements I made when I first got my SDR1000s at work and they all have some amount of leakage with the I/Q inputs grounded. In fact, I used this feature for a calibration signal, so I could tell the difference between errors due to the DDS and errors due to the sound card. It *might* be that you can create a waveform for I/Q that will compensate for this. After all, if the parts were ideal DC blocks, it wouldn't have the problem, so maybe putting a bias on the audio waveform will have an effect. Jim, W6RMK ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
[Flexradio] SVN update issues
IF you get a conflict on the update of the Console directory (in the source), you may simply delete that directory from your hard drive and svn will replace it. If you get a similar conflict on the bin directory AFTER YOU HAVE SAVED YOUR DATABASE AND WISDOM FILE, simply delete the directory and allow svn to rebuild it. Then move your wisdom file back into the bin/Release directory and import thte database. I had to do this on two machines and NOT do it on two others. I have no idea what they differences are but they are easily overcome. Bob -- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat. - Einstein ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Hey Bob - IQ DC offset hooks
This is correct and will be addressed when the TX IF gets addressed. Bob [EMAIL PROTECTED] wrote: Hi Jim, You're correct! No DC path to the QSD. The carrier is coming from the 1/f noise near DC. That will be taken care of when the TX IF gets implemented. 73, John -Original Message- From: Jim Lux [mailto:[EMAIL PROTECTED] Sent: Thursday, November 02, 2006 11:39 PM To: Larry; [EMAIL PROTECTED]; flexradio@flex-radio.biz Subject: Re: [Flexradio] Hey Bob - IQ DC offset hooks At 08:08 PM 11/2/2006, Larry wrote: Bob, I have also been told of a significant carrier presence during SSB transmit. I have been trying to confirm this. I am also using a Delta 44 card. Unless the design has changed since the original, the sound card won't make any difference, because of the AC coupling. You're really depending on the matching of the 22 uF capacitors, I think. I would expect the leakage current to be fairly well matched on the mux. A simple test. Try putting a small DC voltage on just I or Q (using a 10K pot and a battery, for instance) and see if you get more carrier. --Larry W8ER - Original Message - From: [EMAIL PROTECTED] To: flexradio@flex-radio.biz Sent: Thursday, November 02, 2006 9:09 PM Subject: [Flexradio] Hey Bob - IQ DC offset hooks Hi Bob, Is there a way to get at Tx IQ DC offsets in your code. I couldn't fine any. Some of the SDR stations on the air have noticeable carrier present during SSB TX. Using a spectrum analyzer I've noticed that during TX image cancellation I can get the image 20-30 db below the residual carrier! After thinking about this I decided to measure the output of my Delta 44 sound card. It has offsets of -12.8mV on the I channel and -4.11mV on the Q. I would imagine some cards are worse. It would be sweet to null the carrier another 1,000%. 73, John -- next part -- An HTML attachment was scrubbed... URL: /pipermail/flexradio_flex-radio.biz/attachments/20061102/8f0b93a4/attachment.html ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-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://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com James Lux, P.E. Spacecraft Radio Frequency Subsystems Group Flight Communications Systems Section Jet Propulsion Laboratory, Mail Stop 161-213 4800 Oak Grove Drive Pasadena CA 91109 tel: (818)354-2075 fax: (818)393-6875 ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com -- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat. - Einstein ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
[Flexradio] SAM Lock
Sorry to keep bringing this up, but... In the current console, SAM mode doesn't work well. There is no hang time after a lock and with no signal or weak signals, you can hear the receive frequency fluttering constantly. There is also no user adjustment for lock range or timing. I don't know if the folks who use SSB exclusively realize how important a feature SAM Lock is to us who SWL or enjoy AM. It is a GREAT feature. All the modern quality receivers have this capability. I would like to request that the SAM Lock feature in Jeff/K6JCA's console be merged into the current version. The code is done. His implementation WORKS WELL! Why try to reinvent what Jeff has so graciously offered to us for free? Thanks to the code maintainers for considering this request. Jeff/KA5MIR On Sunday 09 July 2006 14:35, Ken N9VV wrote: For those of you who may have missed it: today on the 14.329 Flex HF net John, W5GI (in reply to a question), announced that Flex has a collaborative effort underway with Jeff, K6JCA (ex-WA6AHL), to include the best features of Jeff's console in the standard distribution of the PowerSDR Console. Until the new software architecture 1.7 comes out in the future, many of Jeff's ideas will be incorporated in the current standard console display. T*H*A*N*K Y*O*U Jeff, John, Gerald, Eric, Bob, Frank, Ed and many others for listening to your customers. ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Hey Bob - IQ DC offset hooks
Ooops. You are right. If there is DC offset at the QSE, it will be transmitted and amplified. Jim Lux wrote: You're correct! No DC path to the QSD. The carrier is coming from the 1/f noise near DC. That will be taken care of when the TX IF gets implemented. I don't think it has anything to do with 1/f noise. TX IF won't fix it. Let's for a moment assume that you're feeding in an 11 kHz tone through I/Q (phased so you generate the upper sideband..) You'll get a nice carrier at DDS Freq+11 kHz, and if the image rejection is set up properly, a very small signal at DDS-11 kHz. BUT, you'll also get feedthrough at DDS Freq, and there's nothing you can do about it with an AC coupled system, because the carrier feedthrough in the QSE is entirely determined by the balance of the 4 switches and the DC on their pins, the latter probably determined by leakage current of the electrolytic capacitors. I looked at some measurements I made when I first got my SDR1000s at work and they all have some amount of leakage with the I/Q inputs grounded. In fact, I used this feature for a calibration signal, so I could tell the difference between errors due to the DDS and errors due to the sound card. It *might* be that you can create a waveform for I/Q that will compensate for this. After all, if the parts were ideal DC blocks, it wouldn't have the problem, so maybe putting a bias on the audio waveform will have an effect. Jim, W6RMK ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com -- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat. - Einstein ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] PSK31 Delta 44
Phil Karn used to have a MiniVax as his coffee table. We did all sorts of development on that system including NOS work, satellite work, dsp work, and the on air tests for NOS, TCP/IP over AX.25. We did ranging solutions for AO-13 and more. MAN do I wish I had that thing for the AR museum. I wrote my AO-13 dsp demodulator on that thing. I will never forget us eating Pizza, etc. and watching Monty Python with that thing in the middle. Ah, the days of misspent youth. Bob tim ellison wrote: Van: [EMAIL PROTECTED] namens Tim Ellison Verzonden: do 2-11-2006 16:50 Aan: Simon Brown (HB9DRV); FlexRadio Onderwerp: Re: [Flexradio] PSK31 Delta 44 And for all of you too young to know or too old to forget what a VAX 11 was (is) and it's predecessor the PDP-11, here is a little history http://www.webmythology.com/VAXhistory.htm http://research.microsoft.com/~gbell/Digital/Bell_Retrospective_PDP11_pa per_c1998.htm -Tim -- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat. - Einstein ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
[Flexradio] [KB] A new Knowledge Base article has been posted
A new Knowledge Base article, Q10307 - Tips for optimizing Windows XP has been posted. To view the article, use the following URL http://kb.flex-radio.com/article.aspx?id=10307 An associated article, Q10133 - Is it Important to Keep my Computer Updated -and- Resources for Optimizing my Computer has been updated as well. To view the article, use the following URL http://kb.flex-radio.com/article.aspx?id=10133 -Tim Integrated Technical Services www.itsco.com http://www.itsco.com/ -- next part -- An HTML attachment was scrubbed... URL: /pipermail/flexradio_flex-radio.biz/attachments/20061103/4ba3a1d6/attachment.html ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] PSK31 Delta 44
Some of the PDP8's and VAXes from my old boss I gave to Kees pb0aia. See some pictures and links on http://home.claranet.nl/users/pb0aia/vax/ Follow the links and enjoy (sorry for my english) (sorry for those not interested) groeten Peter pa0pvn petervn(a)hetnet.nl mailto:[EMAIL PROTECTED] ; pa0pvn(a)hetnet.nl mailto:[EMAIL PROTECTED] ; pa0pvn(a)gmail.com ; pa0pvn(a)amsat.org . Van: [EMAIL PROTECTED] namens Robert McGwier Verzonden: vr 3-11-2006 17:27 Aan: Tim Ellison CC: FlexRadio Onderwerp: Re: [Flexradio] PSK31 Delta 44 Phil Karn used to have a MiniVax as his coffee table. We did all sorts of development on that system including NOS work, satellite work, dsp work, and the on air tests for NOS, TCP/IP over AX.25. We did ranging solutions for AO-13 and more. MAN do I wish I had that thing for the AR museum. I wrote my AO-13 dsp demodulator on that thing. I will never forget us eating Pizza, etc. and watching Monty Python with that thing in the middle. Ah, the days of misspent youth. Bob tim ellison wrote: Van: [EMAIL PROTECTED] namens Tim Ellison Verzonden: do 2-11-2006 16:50 Aan: Simon Brown (HB9DRV); FlexRadio Onderwerp: Re: [Flexradio] PSK31 Delta 44 And for all of you too young to know or too old to forget what a VAX 11 was (is) and it's predecessor the PDP-11, here is a little history http://www.webmythology.com/VAXhistory.htm http://research.microsoft.com/~gbell/Digital/Bell_Retrospective_PDP11_pa per_c1998.htm -Tim -- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat. - Einstein ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com http://www.flex-radio.com/ -- next part -- An HTML attachment was scrubbed... URL: /pipermail/flexradio_flex-radio.biz/attachments/20061103/0a1a827c/attachment.html ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Tomorrow's the Day.
John Thanks! Yep! I've been looking forward to it. If any of you who have not been on Teamspeak want to test: Our regular Flex-Radio-Friends weekly Teamspeak forum is tonight at 01:00 UTC (8 P.M. EST etc.) CU Tonight/Tomorrow Tomorrow Eric - AA4SW -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Basilotto Sent: Friday, November 03, 2006 8:29 AM To: Reflector Subject: [Flexradio] Tomorrow's the Day. Importance: High Tomorrow at 11 AM CST [Noon on the east coast, 9 AM on the west coast, 1700 UTC.]on TEAMSPEAK. Quick start guide for getting setup for Teamspeak: http://kb.flex-radio.com/article.aspx?id=10161 We hope to see you there. Town hall meeting AGENDA Agenda for the Saturday's Nov 4 Town Hall Meeting at 1700 UTC : 1. New official release of PowerSDR software for the SDR-1000 with review of new features since v1.6.2. 2. Strategic software direction for new PowerSDR architecture and supporting development tools. 3. New website and Knowledge Base overview 4. QA from previously emailed questions. Please email questions directly to [EMAIL PROTECTED] as private emails so they can be consolidated. This will make for more efficient use of the meeting time and will also result in better responses. Question can also be posted on our forum at http://forums.flex-radio.com/Topic16-44-1.aspx John P. Basilotto W5GI Marketing and Product Manager FlexRadio Systems Office 512-250-8595 Mobile 512-663-6727 ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-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://www.mail-archive.com/flexradio%40flex-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://www.mail-archive.com/flexradio%40flex-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://www.mail-archive.com/flexradio%40flex-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://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Hey Bob - IQ DC offset hooks
Normal carrier suppression is better than 50 dB on the SDR-1000. The ARRL lab measured 53 dB in their October 2005 review. 73, Gerald Gerald Youngblood, K5SDR FlexRadio Systems Ph: 512-535-5266 Fax: 512-233-5143 Email: [EMAIL PROTECTED] Web: www.flex-radio.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert McGwier Sent: Friday, November 03, 2006 10:22 AM To: Jim Lux Cc: [EMAIL PROTECTED]; flexradio@flex-radio.biz Subject: Re: [Flexradio] Hey Bob - IQ DC offset hooks Ooops. You are right. If there is DC offset at the QSE, it will be transmitted and amplified. Jim Lux wrote: You're correct! No DC path to the QSD. The carrier is coming from the 1/f noise near DC. That will be taken care of when the TX IF gets implemented. I don't think it has anything to do with 1/f noise. TX IF won't fix it. Let's for a moment assume that you're feeding in an 11 kHz tone through I/Q (phased so you generate the upper sideband..) You'll get a nice carrier at DDS Freq+11 kHz, and if the image rejection is set up properly, a very small signal at DDS-11 kHz. BUT, you'll also get feedthrough at DDS Freq, and there's nothing you can do about it with an AC coupled system, because the carrier feedthrough in the QSE is entirely determined by the balance of the 4 switches and the DC on their pins, the latter probably determined by leakage current of the electrolytic capacitors. I looked at some measurements I made when I first got my SDR1000s at work and they all have some amount of leakage with the I/Q inputs grounded. In fact, I used this feature for a calibration signal, so I could tell the difference between errors due to the DDS and errors due to the sound card. It *might* be that you can create a waveform for I/Q that will compensate for this. After all, if the parts were ideal DC blocks, it wouldn't have the problem, so maybe putting a bias on the audio waveform will have an effect. Jim, W6RMK ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com -- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat. - Einstein ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-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://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
[Flexradio] Key Clicks
Was just informed that I have some key clicks ... he was several hundred miles away. He said, I was listening to you on 7.037 MHz tonight and noticed that you have some very strong key clicks when I listen to your signal at a low note close to zero beat. I believe you were using a Flex radio rig. Your signal was about 10 over s9 here and the clicks at zero beat were reading s7. I noticed the same thing on 2 different receivers. My setup: Athlon AMD 64x2 w/ 2 gig mem, windows XP, Delta 44 snd card. Process priority High. USB to SDR connection and keying via the SDR jack. Sampling 48k; buffer 256. DSP buffer size 2048; Keyer delay 400ms; Wt = 500; ramp= 5ms; High Res checked. Running 25watts out. Quick search of reflector was not helpful. And didn't find anything in knowledge base. Your thoughts? 73/Crit/K4BXN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Key Clicks
Here are some really great websites about clicks: http://fermi.la.asu.edu/w9cf/articles/click/index.html http://www.w8ji.com/keyclicks.htm http://www.w8ji.com/what_causes_clicks.htm http://www.w8ji.com/keyclicks_1000D.htm http://www.w8ji.com/keyclick_mp.htm http://www.w8ji.com/ft1000mk_v.htm http://www.qsl.net/g3cwi/ft-1000mp_mkv_field.htm de ken n9vv [EMAIL PROTECTED] wrote: Was just informed that I have some key clicks ... ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] PSK31 Delta 44
OK, Bob, you asked for it. next time I come across a VAX, it will be coming your way! of course, it might not be a mini... I was part of the hardware development team for the VAX 8200 and 8800 families, plus the next two generations (that never shipped). and the question about performance relative to your hot new PC - probably 1000X slower in benchmarks. but they got a whole lot of useful work done! 73 paul At 11:27 AM 11/3/2006, Robert McGwier wrote: Phil Karn used to have a MiniVax as his coffee table. We did all sorts of development on that system including NOS work, satellite work, dsp work, and the on air tests for NOS, TCP/IP over AX.25. We did ranging solutions for AO-13 and more. MAN do I wish I had that thing for the AR museum. I wrote my AO-13 dsp demodulator on that thing. I will never forget us eating Pizza, etc. and watching Monty Python with that thing in the middle. Ah, the days of misspent youth. Bob tim ellison wrote: Van: [EMAIL PROTECTED] namens Tim Ellison Verzonden: do 2-11-2006 16:50 Aan: Simon Brown (HB9DRV); FlexRadio Onderwerp: Re: [Flexradio] PSK31 Delta 44 And for all of you too young to know or too old to forget what a VAX 11 was (is) and it's predecessor the PDP-11, here is a little history http://www.webmythology.com/VAXhistory.htm http://research.microsoft.com/~gbell/Digital/Bell_Retrospective_PDP11_pa per_c1998.htm -Tim -- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat. - Einstein ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-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://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
[Flexradio] Key Clicks
One report is just that one report. I'm also not sure what he means when he says he is listening to you with a low note close to zero beat. Does that mean he is mixing your signal with the phase noise in his synthesizer? Typically key clicks are picked up one to a few khz off freq depending on your keying speed and not near zero beat. What you might do is get on the flexer net and have another flexer to look at your signal on the panadapter and see if its wide. My guess this is a red herring. 73 W9OY We have the perfect Group for you. Check out the handy changes to Yahoo! Groups (http://groups.yahoo.com) ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Key Clicks
I am with Lee. I operate either digital modes using VAC (ALE, PSK31, Olivia, MFSK, etc.) or CW. I regularly do 40 wpm with the rig. I have never once had a key click report. In fact, the complaint I have heard from some operators is that the keying on the monitor is softer than they are use to for sidetone. The waveform is quite spectacular. You can see this in the ARRL review of the radio. Rick Lindquist recently told me that he worked an SDR-1000 on the air and was so impressed by the CW performance (which was perfected after the review was done) that he thought something should be written in the magazine. Rick, N1RL, wrote the last review for QST. If you are having some kind of soundcard issue this might have a clicking or ticking but it would be regular like clock work I would think. I am sorry I will not be at home for a few days or I would get on the air with you. Bob Lee A Crocker wrote: One report is just that one report. I'm also not sure what he means when he says he is listening to you with a low note close to zero beat. Does that mean he is mixing your signal with the phase noise in his synthesizer? Typically key clicks are picked up one to a few khz off freq depending on your keying speed and not near zero beat. What you might do is get on the flexer net and have another flexer to look at your signal on the panadapter and see if its wide. My guess this is a red herring. 73 W9OY We have the perfect Group for you. Check out the handy changes to Yahoo! Groups (http://groups.yahoo.com) ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com -- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat. - Einstein ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
