[Flexradio] PowerSDR DttSP v1.4.5 preview 10 Linux port
I have a port of DttSP from PowerSDR v1.4.5 preview 10 to Linux running with FFTW3 on my Fedora Core 4 Linux box. There are some changes to the fifo interface so there is also a new version of my Java GUI to go with it. For details and downloading see http://microsat.homelinux.org/dttsp Currently there is not a version of the command line interface ported for this version. Regards, John g0orx/n6lyt
[Flexradio] SSB vs CW transmit paths
I also pretty interested to implement SSB and CW transmitting to SoftRock style hardware. May be any body have a complete code for play this game at present time and share it with other friends? 73! Vlad. RX3QFM
[Flexradio] My First..
Ive been a ham for just over a year. I bought my SDR1000 a couple of months ago after struggling with an ICOM 706 with limited success. This morning I made my first international 40 meter RTTY contact with Japan, 7L1WII in Ibaraka. The signal report was 599 and Im running 100 watts from a home made wire loop lying on my roof. I dont think I could have done that with a 706 in five years with a beam at 100 feet. Ive learned a lot in a very short time because of all the information that is out there on the reflector, the forum and the telephone support from Gerald and Eric. Forgive me for sounding gushy, but I couldnt help myself- the SDR is great!!! And txs to u all for a great experience. 73s Richard- KE5DLQ
[Flexradio] Teamspeak Audio Flex-Radio-Friends 01-07-06
Folks You can find the Teamspeak audio for the the above date at: http://flex-radio.com/forums/viewtopic.php?p=8700sid=ef6f7394fc0152d2a582e063392d9250#8700 Have a nice week! C U on Teamspeak! Eric2
[Flexradio] Fwd: My First..
Hi Richard..I've had mine about the same time and it works Great..BETTER THAN SEX. NO CRAP IN RETURN..BobRichard Stouffer [EMAIL PROTECTED] wrote: From: "Richard Stouffer" [EMAIL PROTECTED]To: FlexRadio@flex-radio.bizDate: Sat, 7 Jan 2006 07:20:50 -0600Subject: [Flexradio] My First.. Ive been a ham for just over a year. I bought my SDR1000 a couple of months ago after struggling with an ICOM 706 with limited success. This morning I made my first international 40 meter RTTY contact with Japan, 7L1WII in Ibaraka. The signal report was 599 and Im running 100 watts from a home made wire loop lying on my roof. I dont think I could have done that with a 706 in five years with a beam at 100 feet. Ive learned a lot in a very short time because of all the information that is out there on the reflector, the forum and the telephone support from Gerald and Eric. Forgive me for sounding gushy, but I couldnt help myself- the SDR is great!!! And txs to u all for a great experience.73s Richard- KE5DLQ___FlexRadio mailing listFlexRadio@flex-radio.bizhttp://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.bizW5RGSDR-1000___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Re: [Flexradio] My First..
Congrats Richard. You are on the right track. 73, Chas, W`1CG At 08:20 AM 1/7/2006, Richard Stouffer wrote: I've been a ham for just over a year. I bought my SDR1000 a couple of months ago after struggling with an ICOM 706 with limited success. This morning I made my first international 40 meter RTTY contact with Japan, 7L1WII in Ibaraka. The signal report was 599 and I'm running 100 watts from a home made wire loop lying on my roof. I don't think I could have done that with a 706 in five years with a beam at 100 feet. I've learned a lot in a very short time because of all the information that is out there on the reflector, the forum and the telephone support from Gerald and Eric. Forgive me for sounding gushy, but I couldn't help myself- the SDR is great!!! And txs to u all for a great experience. 73's Richard- KE5DLQ ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Re: [Flexradio] PowerSDR DttSP v1.4.5 preview 10 Linux port
I have a port of DttSP from PowerSDR v1.4.5 preview 10 to Linux running with FFTW3 on my Fedora Core 4 Linux box. There are some changes to the fifo interface so there is also a new version of my Java GUI to go with it. For details and downloading see http://microsat.homelinux.org/dttsp Currently there is not a version of the command line interface ported for this version. John, well done on doing the port. I had considered doing that myself to get an up to date release. I don't know about others but I for one would really appreciate a statement on the direction of the Linux jsdr. In the beginning Linux was the master source which was then ported to Windows. Now we have a port back from Windows to Linux. If all the recent work that has been done on the Windows version was not done on Linux first then that makes sense. Frank/Bob please help out here. 73 Bob ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz *** Confidentiality Notice *** Proprietary/Confidential Information belonging to CGI Group Inc. and its affiliates may be contained in this message. If you are not a recipient indicated or intended in this message (or responsible for delivery of this message to such person), or you think for any reason that this message may have been addressed to you in error, you may not use or copy or deliver this message to anyone else. In such case, you should destroy this message and are asked to notify the sender by reply email.
Re: [Flexradio] A bit of light entertainment ... connectors doc umentation
Thanks for the code. I have managed to load most of the extra packages. Now I just need to understand what they do. I also downloaded jsdr and will try to get that going with my SDR-1000.I have quite a bit of learning to do so it may be a while before I get squeak controlling my radio.Squeak is a pretty interesting software environment. I like the way you can save the image and start up right where you were. Getting jsdr going is pretty straight forward. The problem I had was getting Linux to recognise my Santa Cruz sound card. The real nightmare was with wxPython but thankfully I don't have to deal with that now. There is huge potential with Squeak and Morphic, a lot can happen with very little code. As you say its' nice to be able to leave something you were right in the middle of and come back days later knowing you can pick up right where you left off. Do you know of anyone who is using GNURadio to control the SDR-1000? I think there were some moves in that direction but I've not been personally involved. I will probably be asking a few more questions as I get closser to hooking things up. Pleased to help where ever I can. 73 Bob Forgot these. Change the path in SDRPool to match where you put them. Only a few are required but I couldn't be bothered to sort them. Bob *** Confidentiality Notice *** Proprietary/Confidential Information belonging to CGI Group Inc. and its affiliates may be contained in this message. If you are not a recipient indicated or intended in this message (or responsible for delivery of this message to such person), or you think for any reason that this message may have been addressed to you in error, you may not use or copy or deliver this message to anyone else. In such case, you should destroy this message and are asked to notify the sender by reply email.
[Flexradio] Doctoral dissertation help
All, I have a good friend working on his doctorate at the University of Texas San Antonio who needs some help getting information for his dissertation. He has posted a survey on home computer security at http://www.surveymonkey.com/s.asp?u=660481635239 and would appreciate your input. The survey takes about 15 minutes to complete. My thanks to all who can participate. Bob, K5KDN
Re: [Flexradio] PowerSDR DttSP v1.4.5 preview 10 Linux port
Cowdery, Bob [UK] wrote: I don't know about others but I for one would really appreciate a statement on the direction of the Linux jsdr. In the beginning Linux was the master source which was then ported to Windows... The Linux and Windows versions have officially forked. None of the recent steps forward/back (like EQ) was incorporated into the Linux version, nor was any such integration ever intended. Our position all along has been that many of the contemplated or requested enhancements are better kept outside of the DSP proper. The segregation is much easier to support under Linux. The aim is to keep the Linux core as clean and streamlined as possible, especially when new functionality is simpler and easier to provide outside the DSP core itself. Windows and Linux are different enough that trying to keep the sources aligned has become counterproductive. Windows patches have been removed from the upcoming official release. Further enhancements to the jsdr DSP processing are enthusiastically encouraged as candidates for porting to Windows, but compatibility with future Windows versions is not a high priority. I have to apologize to everyone and take personal responsibility for the lateness of the official release. This has been a volunteer effort for Bob and me, and there have been unavoidable distractions from getting the last bits of cleanup finished. The obstacles to getting the release out have been pretty much resolved as of the New Year. Our sincerest thanks to the developers who have taken the initiative to create their own environments around jsdr. Our topmost goal is to provide support for these developers and their work on alternative environments for running the SDR-1000 and jsdr. 73 Frank AB2KT
Re: [Flexradio] A bit of light entertainment
Michael Pleased to know you are joining the Squeakers. I downloaded squeak and have started playing with it. Way cool! I spent 7 years programming java, but got tired of it, but squeak looks like where I want to spend my time. It is refreshingly different and a lot of fun. I am a great believer in horses for courses and this horse is right for what I have in mind. I am involved in two projects at work at the moment and for the first Python has worked really well, for the other which is much larger Java is the only choice for the backend tiers but I am using Ruby on Rails for the Web Application. In both cases I think I have the right horses but it's always a difficult choice. My goals: 1. I would like to run the sdr1000 on my mac. I've had it about 6 months and just can't go back to windows. You might say that I have a severe case of Windows Post Traumatic Stress Syndrome (WPDST) :-) Besides, my stepson absconded with my Intel box that was dual boot linux/windows. It would be nice to see at least the GUI on a Mac, and that should be pretty straight forward. Linux is a good host for the DSP and my preferred mode is to have the DSP on it's own machine as I can then mess about on the machine running the GUI and run lots of stuff without any danger of causing a hiccup. 2. I'd like to contribute what I can to a aqueak port of sdr code. That would be great if you could. As each component is very loose coupled, it should be easy to write new components without in most cases touching anything else save maybe adding an entry to a map and implementing any new methods in the components you link to. I haven't really stopped to think about how things should link together yet. I think the basic philosophy is going to be each component deals with its own responsibilities. So for example the DSP client and server components know the state of the DSP and should reflect this in software LED's. etc. But things like how to arbitrate between all the frequency displays that you could throw on a screen, do AB, CD etc, IRT/ITT and IF shift, multiple receivers (jsdr supports 4) etc etc is still up for grabs. At the moment I am thinking about a persistency addition to the framework using the Magma package which I have started playing with. As with the connection management I want it to be completely transparent to component writers. 3. And finally, I am interested in 3d sound. The idea, for cw, is that if youto can move the sound 3 dimensionally to improve cw copy. I've tried this (by moving speakers) and when I get it just right (above the plane of my head and about a foot in front) for me the code just seems to make letters appear automatically. That sounds more like DSP work. I do hope that eventually the DSP can be implemented as components that can be wired up in the same way as the rest of the application. There is a PortAudio port going on at the moment which will open up those possibilities. As you say, lets see what can happen. Look forward to seeing what can happen. 73 Bob On 12/29/05, Cowdery, Bob [UK] [EMAIL PROTECTED] wrote: Perfectly feasible in that squeak runs on Mac OSX. I can't speak for how it runs as I don't have a Mac. The SDR1000 controller would have to be changed to use the Mac way of getting to the parallel port which I guess is the same as nix. More importantly the jsdr implementation would have to run and I don't think that has been ported, but I could be wrong. Bob -Original Message- From: Michael Doherty [mailto:[EMAIL PROTECTED]] Sent: 29 December 2005 12:35 To: Cowdery, Bob [UK] Subject: Re: [Flexradio] A bit of light entertainment Is it feasible to run this on mac (OSX)? 73's, Michael kd5wby On 12/29/05, Cowdery, Bob [UK] [EMAIL PROTECTED] wrote: You're too modest, Bob. This is exactly what I (personally, from a very jaundiced point of view) want an SDR to be. I never blow my trumpet too hard Frank incase it falls apart! I hope this effort will have a longer life span and I think maybe it will. I made a few small updates to my web page so text wraps, had to cut the pic in half (must be a better way). Added the installation info. 73 Bob -Original Message- From: Frank Brickle [mailto:[EMAIL PROTECTED]] Sent: 29 December 2005 10:26 To: Cowdery, Bob [UK] Cc: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] A bit of light entertainment [EMAIL PROTECTED] wrote: Ok guys. I think a bit of real information is called for here. 73 Frank AB2KT *** Confidentiality Notice *** Proprietary/Confidential Information belonging to CGI Group Inc. and its affiliates may be contained in this message. If you are not a recipient indicated or intended in this message (or responsible for delivery of this message to such person), or you think for any reason that this message may have been addressed to you in error, you may not use or copy or deliver this message to anyone else.In such case, you should
Re: [Flexradio] PowerSDR DttSP v1.4.5 preview 10 Linux port
Cowdery, Bob [UK] wrote: I don't know about others but I for one would really appreciate a statement on the direction of the Linux jsdr. In the beginning Linux was the master source which was then ported to Windows... Frank Brickle wrote: The Linux and Windows versions have officially forked... Thanks for the update Frank and very pleased to know the Linux jsdr is still very much happening. I will hang-fire until you good chaps are happy with the next release. 73 Bob *** Confidentiality Notice *** Proprietary/Confidential Information belonging to CGI Group Inc. and its affiliates may be contained in this message. If you are not a recipient indicated or intended in this message (or responsible for delivery of this message to such person), or you think for any reason that this message may have been addressed to you in error, you may not use or copy or deliver this message to anyone else. In such case, you should destroy this message and are asked to notify the sender by reply email.
Re: [Flexradio] DIP OCXO for SDR
John (and others on this thread) Magnus - SM4RWI mailed me off list of a Valpey Fisher 200 VCXO offering with low phase noise. The VF 960/961. I could not find any ready sources for this part and did not request sample or quote. However, it is a pretty nice piece. http://www.mfelectronics.com/products/vcxo/ I decided to go back out and do my occasional search for an available part with low phase noise and 200 mhz VC. Newark is supplying a Crystek 200 mhz VCXO in stock for about $45 Dip and $58 smt. See PDF. http://www.crystek.com/spec-sheets/CCO-083_085.pdf http://www.mouser.com/catalog/624/656.pdf If we are talking about temp stabilizing and disciplining external to the radio, these might be good considerations for the conventional (not computer or FPGA aided) GPS - 10 mhz phase locking system. Someone could take a look and see if the specs are acceptable. Eric2 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Eric Ellison Sent: Friday, January 06, 2006 4:17 PM To: 'John Ackermann N8UR' Cc: [EMAIL PROTECTED]; FlexRadio@flex-radio.biz Subject: Re: [Flexradio] DIP OCXO for SDR John Yes! Gerald HAS really moved a lot of lives with something that actually works, is available, and works very well! It sure has spawned a LOT of interesting projects and experimentation. I agree totally that we should 'brainstorm' a solution for getting the 200 mhz off or on, or around, and or back into the SDR-1000. Something fairly flexible and not too difficult to accomplish. I don't think that any of this is in conflict with others, and nothing is really 'fractionating' the mass of folks in spite of 'parallel' projects going on. If anything we are getting some crosspollination. At this point having gone about as far as we can go with ECO's in this hardware, we are just 'branching out' into associated areas, where former focus was investigating how to directly improve the SDR-1000. Any comments from readers as to how we actually pull the VF osc, buffer it? Parts? Schematics? Block diagrams. Designs (not talk!). Thanks Eric2 -Original Message- From: John Ackermann N8UR [mailto:[EMAIL PROTECTED] Sent: Friday, January 06, 2006 9:16 AM To: Eric Ellison Cc: [EMAIL PROTECTED]; FlexRadio@flex-radio.biz Subject: Re: [Flexradio] DIP OCXO for SDR Eric Ellison wrote: [ everything trimmed ] It sounds like there are several groups doing a lot of interesting things with FGPAs that extend way beyond just frequency stability. I think that's really great, and thank Gerald for creating such a great base for creative people to play. From my (and TAPR's) perspective, we want to do a Reflock-based design because it will have a broader use than just the SDR-1000. For example, with a 64MHz VCXO, it can work with the Ettus Research USRP software radio. I can also see it serving as an external clock for a sound card to eliminate that source of frequency uncertainty. So, I don't see any conflict at all between what we're doing and the other approaches. The one SDR1k specific item I'd like to see, whether TAPR produces it or Gerald does, is a civilized board that will plug into the reference oscillator socket to allow a better interface to an external signal. I've started looking into that and we'll work with Gerald to figure out how best to offer that. It's mainly a matter of finding a buffer/level converter chip that will take a single-ended input and convert it to a differential signal at the right level for the DDS chip (suggestions welcome; I've started researching the chipmaker sites, but haven't found an obvious answer yet). 73, John ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Re: [Flexradio] DIP OCXO for SDR
Eric, The VF VCXO listed below has a max frequency at 200 MHz. The XO currently in use, the VF 161 has a max frequency of 300 MHz. Using a device at either end of its rated frequency may suffer from precision and/or accuracy errors. The Crystek is much closer, but the output is a sine wave rather than PECL(positive emitter coupled logic) which is the output of the current XO. I am not sure if this will make a difference or not with the devices being designed. I did find this VCXO that is very close to the VP161 from Greenray, but I received some less than satisfactory comments about the company http://greenrayindustries.com/library/ZT620.pdf -Tim --- Tim Ellison ( [EMAIL PROTECTED] ) Integrated Technical Services ( http://www.itsco.com ) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Eric Ellison Sent: Saturday, January 07, 2006 9:01 PM To: 'Eric Ellison'; 'John Ackermann N8UR' Cc: [EMAIL PROTECTED]; FlexRadio@flex-radio.biz Subject: Re: [Flexradio] DIP OCXO for SDR John (and others on this thread) Magnus - SM4RWI mailed me off list of a Valpey Fisher 200 VCXO offering with low phase noise. The VF 960/961. I could not find any ready sources for this part and did not request sample or quote. However, it is a pretty nice piece. http://www.mfelectronics.com/products/vcxo/ I decided to go back out and do my occasional search for an available part with low phase noise and 200 mhz VC. Newark is supplying a Crystek 200 mhz VCXO in stock for about $45 Dip and $58 smt. See PDF. http://www.crystek.com/spec-sheets/CCO-083_085.pdf http://www.mouser.com/catalog/624/656.pdf If we are talking about temp stabilizing and disciplining external to the radio, these might be good considerations for the conventional (not computer or FPGA aided) GPS - 10 mhz phase locking system. Someone could take a look and see if the specs are acceptable. Eric2 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Eric Ellison Sent: Friday, January 06, 2006 4:17 PM To: 'John Ackermann N8UR' Cc: [EMAIL PROTECTED]; FlexRadio@flex-radio.biz Subject: Re: [Flexradio] DIP OCXO for SDR John Yes! Gerald HAS really moved a lot of lives with something that actually works, is available, and works very well! It sure has spawned a LOT of interesting projects and experimentation. I agree totally that we should 'brainstorm' a solution for getting the 200 mhz off or on, or around, and or back into the SDR-1000. Something fairly flexible and not too difficult to accomplish. I don't think that any of this is in conflict with others, and nothing is really 'fractionating' the mass of folks in spite of 'parallel' projects going on. If anything we are getting some crosspollination. At this point having gone about as far as we can go with ECO's in this hardware, we are just 'branching out' into associated areas, where former focus was investigating how to directly improve the SDR-1000. Any comments from readers as to how we actually pull the VF osc, buffer it? Parts? Schematics? Block diagrams. Designs (not talk!). Thanks Eric2 -Original Message- From: John Ackermann N8UR [mailto:[EMAIL PROTECTED] Sent: Friday, January 06, 2006 9:16 AM To: Eric Ellison Cc: [EMAIL PROTECTED]; FlexRadio@flex-radio.biz Subject: Re: [Flexradio] DIP OCXO for SDR Eric Ellison wrote: [ everything trimmed ] It sounds like there are several groups doing a lot of interesting things with FGPAs that extend way beyond just frequency stability. I think that's really great, and thank Gerald for creating such a great base for creative people to play. From my (and TAPR's) perspective, we want to do a Reflock-based design because it will have a broader use than just the SDR-1000. For example, with a 64MHz VCXO, it can work with the Ettus Research USRP software radio. I can also see it serving as an external clock for a sound card to eliminate that source of frequency uncertainty. So, I don't see any conflict at all between what we're doing and the other approaches. The one SDR1k specific item I'd like to see, whether TAPR produces it or Gerald does, is a civilized board that will plug into the reference oscillator socket to allow a better interface to an external signal. I've started looking into that and we'll work with Gerald to figure out how best to offer that. It's mainly a matter of finding a buffer/level converter chip that will take a single-ended input and convert it to a differential signal at the right level for the DDS chip (suggestions welcome; I've started researching the chipmaker sites, but haven't found an obvious answer yet). 73, John ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz ___ FlexRadio mailing list FlexRadio@flex-radio.biz
Re: [Flexradio] DIP OCXO for SDR
Tim Thanks. I swear that Gerald said the current VF part was sine wave output. I saw the posts about the Greenray a while back and just don't know. This is the first time in my searches that I found a 200 mhz VC part which is available without horrific lead times and no quantity one. If the Crystek part will work in our external closed loop design to drive the SDR accurately then I'm for giving it a shot. That price is not bad either. At times I had seen $80 + parts and they were not low phase noise, or voltage controlled, just +/- 25 ppm TC parts. Although this is a 50 ppm part I think that I saw it could be pulled +/- 500 ppm. Thanks for the response. Comments? Eric2 -Original Message- From: Tim Ellison [mailto:[EMAIL PROTECTED] Sent: Saturday, January 07, 2006 10:32 PM To: Eric Ellison; John Ackermann N8UR Cc: [EMAIL PROTECTED]; FlexRadio@flex-radio.biz Subject: RE: [Flexradio] DIP OCXO for SDR Eric, The VF VCXO listed below has a max frequency at 200 MHz. The XO currently in use, the VF 161 has a max frequency of 300 MHz. Using a device at either end of its rated frequency may suffer from precision and/or accuracy errors. The Crystek is much closer, but the output is a sine wave rather than PECL(positive emitter coupled logic) which is the output of the current XO. I am not sure if this will make a difference or not with the devices being designed. I did find this VCXO that is very close to the VP161 from Greenray, but I received some less than satisfactory comments about the company http://greenrayindustries.com/library/ZT620.pdf -Tim --- Tim Ellison ( [EMAIL PROTECTED] ) Integrated Technical Services ( http://www.itsco.com ) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Eric Ellison Sent: Saturday, January 07, 2006 9:01 PM To: 'Eric Ellison'; 'John Ackermann N8UR' Cc: [EMAIL PROTECTED]; FlexRadio@flex-radio.biz Subject: Re: [Flexradio] DIP OCXO for SDR John (and others on this thread) Magnus - SM4RWI mailed me off list of a Valpey Fisher 200 VCXO offering with low phase noise. The VF 960/961. I could not find any ready sources for this part and did not request sample or quote. However, it is a pretty nice piece. http://www.mfelectronics.com/products/vcxo/ I decided to go back out and do my occasional search for an available part with low phase noise and 200 mhz VC. Newark is supplying a Crystek 200 mhz VCXO in stock for about $45 Dip and $58 smt. See PDF. http://www.crystek.com/spec-sheets/CCO-083_085.pdf http://www.mouser.com/catalog/624/656.pdf If we are talking about temp stabilizing and disciplining external to the radio, these might be good considerations for the conventional (not computer or FPGA aided) GPS - 10 mhz phase locking system. Someone could take a look and see if the specs are acceptable. Eric2 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Eric Ellison Sent: Friday, January 06, 2006 4:17 PM To: 'John Ackermann N8UR' Cc: [EMAIL PROTECTED]; FlexRadio@flex-radio.biz Subject: Re: [Flexradio] DIP OCXO for SDR John Yes! Gerald HAS really moved a lot of lives with something that actually works, is available, and works very well! It sure has spawned a LOT of interesting projects and experimentation. I agree totally that we should 'brainstorm' a solution for getting the 200 mhz off or on, or around, and or back into the SDR-1000. Something fairly flexible and not too difficult to accomplish. I don't think that any of this is in conflict with others, and nothing is really 'fractionating' the mass of folks in spite of 'parallel' projects going on. If anything we are getting some crosspollination. At this point having gone about as far as we can go with ECO's in this hardware, we are just 'branching out' into associated areas, where former focus was investigating how to directly improve the SDR-1000. Any comments from readers as to how we actually pull the VF osc, buffer it? Parts? Schematics? Block diagrams. Designs (not talk!). Thanks Eric2 -Original Message- From: John Ackermann N8UR [mailto:[EMAIL PROTECTED] Sent: Friday, January 06, 2006 9:16 AM To: Eric Ellison Cc: [EMAIL PROTECTED]; FlexRadio@flex-radio.biz Subject: Re: [Flexradio] DIP OCXO for SDR Eric Ellison wrote: [ everything trimmed ] It sounds like there are several groups doing a lot of interesting things with FGPAs that extend way beyond just frequency stability. I think that's really great, and thank Gerald for creating such a great base for creative people to play. From my (and TAPR's) perspective, we want to do a Reflock-based design because it will have a broader use than just the SDR-1000. For example, with a 64MHz VCXO, it can work with the Ettus Research USRP software radio. I can also see it serving as an external clock for a sound card to eliminate that source of frequency uncertainty. So, I don't see any conflict at all between what we're doing and the
[Flexradio] No TX output w/ recommended D44 setup
Hi All, After a week of frustration, I hope there is some help out there. Everything on my brand-new SDR-1000 works EXCEPT the TX side: 1. With the setup EXACTLY as shown in the D44 Quick Start Guide, with H/W In 3/4 patched to WavOut 3/4, there is NO TX modulation. The Delta control panel shows plenty of MIC audio on H/W In 3, but nothing on H/W Out 3/4. 2. If I patch H/W In 3/4 directly to H/W Out 3/4 in the Patchbay/Router tab, I get modulated TX output, but I'm not so sure of the quality or the modulation. I have a feeling it's pretty gnarly (California term - HI). I'm using the built-in AC-97 sound module as the 2nd sound card via VAC. What am I missing or doing wrong that doesn't appear to be in the manual??? I also noticed that the Green LED on my RigRunner 13.8V DC buss flashes in sync with the display refresh rate. That's a bit odd. This rig has a lot of potential for me. Please help me prevent it from turning into an expensive paperweight. Tnx 73, Dan KB5MY/6 DM13nc
