[Elecraft] SDR IQ
Hello Elecrafter's... Looking for an RF-Space SDR IQ.any have one ''left over for sale '' ? 73' Viggo LA9NEA ( K3' remote ,K3/0-mini owner) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] SDR-IQ and K2
Hi Folks, I have a Z1 buffer board in my K2 and have used it to drive a softrock as a panadapter for some time. It works just fine, but I have left this uncalibrated and my PC doesn't really have enough horsepower to run my external soundcard. I have been trying to reduce PC overhead and introduce click to tune by using an SDR-IQ instead. The system displays OK, but I cannot get Simon's SDR-Radio software to calibrate the panadapter to zero beat the radio RX. I know about the cal functions, but can't dial in enough offset for all modes. I suspect I am doing something fundamentally incorrect - can anyone help? 1) I am using telling the SDR that the IF is 4.915MHz. I assume that is correct? I see that the soft rock radios are at 4.898MHz and I am not sure why. 2) I assume the K2 offsets the frequency when modes are changed? If so, by how much on each mode? Does any mode have no offset at all? This would be the one I need to perform my initial calibration with. If any one has a K2 working with an SDR-IQ (either with SDR-radio or any other software that provides click to tune) I'd really like to hear from you - i have plenty to learn! Thanks es 73 Steve M0BPQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ and K2
Steve, you might want to look at the combo of LPB2 and NaP3. LPB2 allows sharing of the rig port with an SDR and up to 5 apps, like LP-Bridge does with K3. NaP3 is the latest iteration of Flex's open source PowerSDR, has some really neat features. A version of NaP3 is in pre-release which fully supports K2, with extensive support for offsets for all modes. Larry N8LP On 11/10/2011 12:00 PM, elecraft-requ...@mailman.qth.net wrote: Message: 4 Date: Thu, 10 Nov 2011 16:06:11 + From: Steve Buntingstephen.bunt...@virgin.net Subject: [Elecraft] SDR-IQ and K2 To:elecraft@mailman.qth.net Message-ID:4ebbf673.3090...@virgin.net Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi Folks, I have a Z1 buffer board in my K2 and have used it to drive a softrock as a panadapter for some time. It works just fine, but I have left this uncalibrated and my PC doesn't really have enough horsepower to run my external soundcard. I have been trying to reduce PC overhead and introduce click to tune by using an SDR-IQ instead. The system displays OK, but I cannot get Simon's SDR-Radio software to calibrate the panadapter to zero beat the radio RX. I know about the cal functions, but can't dial in enough offset for all modes. I suspect I am doing something fundamentally incorrect - can anyone help? 1) I am using telling the SDR that the IF is 4.915MHz. I assume that is correct? I see that the soft rock radios are at 4.898MHz and I am not sure why. 2) I assume the K2 offsets the frequency when modes are changed? If so, by how much on each mode? Does any mode have no offset at all? This would be the one I need to perform my initial calibration with. If any one has a K2 working with an SDR-IQ (either with SDR-radio or any other software that provides click to tune) I'd really like to hear from you - i have plenty to learn! Thanks es 73 Steve M0BPQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ and K2
Steve: 1. 4898 KHz is the nearest to 4915 KHz cheap, off-the-shelf crystal that Tony (developer of Softrock) found. It has the advantage for anyone not using a high isolation buffer amp such as the Z1B, that the local oscillator leakage is outside the K2's crystal filter bandpass. This avoids hearing the Softrock local oscillator as a steady carrier in the K2. 2. Yes, the K2 shifts frequency with mode changes. You can measure your K2's shift by tuning a strong stable signal and working through the modes and observing the shift on the Softrock/software display. Jack K8ZOA On 11/10/2011 11:06 AM, Steve Bunting wrote: Hi Folks, I have a Z1 buffer board in my K2 and have used it to drive a softrock as a panadapter for some time. It works just fine, but I have left this uncalibrated and my PC doesn't really have enough horsepower to run my external soundcard. I have been trying to reduce PC overhead and introduce click to tune by using an SDR-IQ instead. The system displays OK, but I cannot get Simon's SDR-Radio software to calibrate the panadapter to zero beat the radio RX. I know about the cal functions, but can't dial in enough offset for all modes. I suspect I am doing something fundamentally incorrect - can anyone help? 1) I am using telling the SDR that the IF is 4.915MHz. I assume that is correct? I see that the soft rock radios are at 4.898MHz and I am not sure why. 2) I assume the K2 offsets the frequency when modes are changed? If so, by how much on each mode? Does any mode have no offset at all? This would be the one I need to perform my initial calibration with. If any one has a K2 working with an SDR-IQ (either with SDR-radio or any other software that provides click to tune) I'd really like to hear from you - i have plenty to learn! Thanks es 73 Steve M0BPQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] SDR IQ/IF Questions
Hello fellow SDR enthusiasts, I have looked around a little bit and haven't found a very definitive answer for the questions that I'm having about the way the K3 and external SDR equipment works. I've been looking into the LP-Pan which converts the IF output from the K3 into (im guessing) audio signals which then are converted into digital data by a soundcard. The trouble I'm having is understanding what exactly I/Q is. From what I understand, I/Q is digital data that software like CW Skimmer understands. Now, I've also been looking at the SDR-IQ which does all of this internally by taking the IF output from the K3 and converts it directly into digital data which is then ferried to the computer over USB, forgoing the need for an extra soundcard. Now, I've seen two versions of PowerSDR. I've seen PowerSDR/IF (looks more developed/supported), and PowerSDR-IQ. What is the difference? I suppose the summary question of this email is. can you use PowerSDR/IF with an SDR-IQ rather than an LP-Pan? I personally would rather buy an SDR-IQ and take that extra hardware stage (possible audio loss) out of the picture. Thanks! Geoffrey Wolf AB3LS - Amateur Radio Callsign University of Pittsburgh '14 gr...@pitt.edu liltechd...@me.com (412) 450-1310 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR IQ/IF Questions
Okay, Well thank you for the link. I have a little bit of reading up to do on I/Q. So I'm still a little bit confused in the K3 setup situation. So in both the situations with the LP-Pan or the SDR-IQ, the PowerSDR software would receive the same data? I'm having trouble understanding where the analog signals are converted into digital signals. In the case of the LP-Pan, I'm imagining that it happens at the soundcard? In the case of the SDR-IQ, it takes place inside the SDR-IQ... right? Sorry for my misunderstanding here... So my main question still stands, can you use PowerSDR/IF software with an SDR-IQ? Thank You! Geoffrey Wolf AB3LS - Amateur Radio Callsign University of Pittsburgh '14 gr...@pitt.edu liltechd...@me.com (412) 450-1310 -Original Message- From: k...@baymoon.com [mailto:k...@baymoon.com] Sent: Wednesday, April 06, 2011 1:39 PM To: Geoffrey Wolf Subject: Re: [Elecraft] SDR IQ/IF Questions Read this... http://education.tm.agilent.com/index.cgi?CONTENT_ID=4 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR IQ/IF Questions
Hi Geoffrey, Perhaps the ARRL Handbook, Chapter 15 - DSP and Software Radio Design, might help? Section 15.6, in particular describes the math behind calculating the in-phase (I) and quadrature (Q) portions of a wave form. As for specific device compatibility with particular software packages, the release notes for the software should list the hardware it will work with. HTH, On Wed, Apr 6, 2011 at 10:29 AM, Geoffrey Wolf liltechdud...@gmail.com wrote: I've been looking into the LP-Pan which converts the IF output from the K3 into (im guessing) audio signals which then are converted into digital data by a soundcard. The trouble I'm having is understanding what exactly I/Q is. From what I understand, I/Q is digital data that software like CW Skimmer understands. 73, Byron N6NUL - Northern California Contest Club - CU in the 2011 Cal QSO Party 1-2 Oct 2011 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR IQ/IF Questions
Oh thank you. I Have the handbook but didn't know there was a DSP section. I'll take a look at that. -- Geoffrey Wolf AB3LS (Amateur Radio Callsign) University of Pittsburgh '14 gr...@pitt.edu liltechd...@me.com (412) 450-1310 On Apr 6, 2011, at 2:07 PM, Byron Servies by...@n6nul.org wrote: Hi Geoffrey, Perhaps the ARRL Handbook, Chapter 15 - DSP and Software Radio Design, might help? Section 15.6, in particular describes the math behind calculating the in-phase (I) and quadrature (Q) portions of a wave form. As for specific device compatibility with particular software packages, the release notes for the software should list the hardware it will work with. HTH, On Wed, Apr 6, 2011 at 10:29 AM, Geoffrey Wolf liltechdud...@gmail.com wrote: I've been looking into the LP-Pan which converts the IF output from the K3 into (im guessing) audio signals which then are converted into digital data by a soundcard. The trouble I'm having is understanding what exactly I/Q is. From what I understand, I/Q is digital data that software like CW Skimmer understands. 73, Byron N6NUL - Northern California Contest Club - CU in the 2011 Cal QSO Party 1-2 Oct 2011 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR IQ/IF Questions
If you're interested in DSP code you might try using quisk instead of PowerSDR. It's written in mostly Python and a little bit of C, and works on Linux and Windows. I made some modules for it to talk to the K3 rigcontrol, but those aren't necessary to use it with the LP-PAN output, just for the click-to-qsy and frequency display. Leigh/WA5ZNU -- View this message in context: http://elecraft.365791.n2.nabble.com/SDR-IQ-IF-Questions-tp6246917p6247525.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR IQ/IF Questions
Hi Geoffrey. I just read through your thread (I receive the reflector in digest mode). I didn't see one of your questions answered, so I will tackle it... I'm not aware of any version of PowerSDR which works with SDR-IQ. The interface has to be a sound card. My favorite version of PowerSDR is the /IF version by Scott, WU2X. I have tried others like PowerSDR/IQ, but they are not as well integrated with the K3 or LP-Bridge. A recent addition, on which I am a contributing developer, is TRX-Pan. It is much simpler and cleaner looking than PowerSDR/IF and integrates more tightly with the K3. In fact, more tightly than any other panadapter for the K3, I believe. You can read about it here, http://www.telepostinc.com/TRXP.html TRX-Pan does not provide demodulated audio as PowerSDR does, so it can't be used as a sub-rcvr, but it does display and track passbands for both VFOs very nicely. It's more like a P3 with huge screen and mouse control. I wasn't aware that Quisk now supports Windoze. Leigh might have mentioned this and I just forgot. I will play with it when I have some time. Maybe it could be customized to the level that TRX-Pan is in terms of K3 / LP-Bridge integration. Before deciding on a PC based solution versus a partial PC based solution versus a standalone solution, I would download and play with the programs that would be required for any of these. They are all available as a free download, although WU2X requests a donation to support PowerSDR/IF if you decide to go that route. You can set these up to control the rig and display noise from your sound card. This will help you decide if the PC approach is right for you. 73, Larry N8LP On 4/6/2011 5:11 PM, elecraft-requ...@mailman.qth.net wrote: Date: Wed, 6 Apr 2011 13:29:45 -0400 From: Geoffrey Wolfliltechdud...@gmail.com Subject: [Elecraft] SDR IQ/IF Questions To:elecraft@mailman.qth.net Message-ID:000f01cbf480$39143d10$ab3cb730$@gmail.com Content-Type: text/plain; charset=us-ascii Hello fellow SDR enthusiasts, I have looked around a little bit and haven't found a very definitive answer for the questions that I'm having about the way the K3 and external SDR equipment works. I've been looking into the LP-Pan which converts the IF output from the K3 into (im guessing) audio signals which then are converted into digital data by a soundcard. The trouble I'm having is understanding what exactly I/Q is. From what I understand, I/Q is digital data that software like CW Skimmer understands. Now, I've also been looking at the SDR-IQ which does all of this internally by taking the IF output from the K3 and converts it directly into digital data which is then ferried to the computer over USB, forgoing the need for an extra soundcard. Now, I've seen two versions of PowerSDR. I've seen PowerSDR/IF (looks more developed/supported), and PowerSDR-IQ. What is the difference? I suppose the summary question of this email is. can you use PowerSDR/IF with an SDR-IQ rather than an LP-Pan? I personally would rather buy an SDR-IQ and take that extra hardware stage (possible audio loss) out of the picture. Thanks! Geoffrey Wolf AB3LS - Amateur Radio Callsign University of Pittsburgh '14 gr...@pitt.edu liltechd...@me.com (412) 450-1310 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR IQ/IF Questions
Larry, A recent addition, on which I am a contributing developer, is TRX-Pan. It is much simpler and cleaner looking than PowerSDR/IF and integrates more tightly with the K3. Does TRX-Pan support SDR-IQ or is it limited to soundcard based devices? 73, ... Joe, W4TV On 4/6/2011 10:09 PM, Larry Phipps wrote: Hi Geoffrey. I just read through your thread (I receive the reflector in digest mode). I didn't see one of your questions answered, so I will tackle it... I'm not aware of any version of PowerSDR which works with SDR-IQ. The interface has to be a sound card. My favorite version of PowerSDR is the /IF version by Scott, WU2X. I have tried others like PowerSDR/IQ, but they are not as well integrated with the K3 or LP-Bridge. A recent addition, on which I am a contributing developer, is TRX-Pan. It is much simpler and cleaner looking than PowerSDR/IF and integrates more tightly with the K3. In fact, more tightly than any other panadapter for the K3, I believe. You can read about it here, http://www.telepostinc.com/TRXP.html TRX-Pan does not provide demodulated audio as PowerSDR does, so it can't be used as a sub-rcvr, but it does display and track passbands for both VFOs very nicely. It's more like a P3 with huge screen and mouse control. I wasn't aware that Quisk now supports Windoze. Leigh might have mentioned this and I just forgot. I will play with it when I have some time. Maybe it could be customized to the level that TRX-Pan is in terms of K3 / LP-Bridge integration. Before deciding on a PC based solution versus a partial PC based solution versus a standalone solution, I would download and play with the programs that would be required for any of these. They are all available as a free download, although WU2X requests a donation to support PowerSDR/IF if you decide to go that route. You can set these up to control the rig and display noise from your sound card. This will help you decide if the PC approach is right for you. 73, Larry N8LP On 4/6/2011 5:11 PM, elecraft-requ...@mailman.qth.net wrote: Date: Wed, 6 Apr 2011 13:29:45 -0400 From: Geoffrey Wolfliltechdud...@gmail.com Subject: [Elecraft] SDR IQ/IF Questions To:elecraft@mailman.qth.net Message-ID:000f01cbf480$39143d10$ab3cb730$@gmail.com Content-Type: text/plain;charset=us-ascii Hello fellow SDR enthusiasts, I have looked around a little bit and haven't found a very definitive answer for the questions that I'm having about the way the K3 and external SDR equipment works. I've been looking into the LP-Pan which converts the IF output from the K3 into (im guessing) audio signals which then are converted into digital data by a soundcard. The trouble I'm having is understanding what exactly I/Q is. From what I understand, I/Q is digital data that software like CW Skimmer understands. Now, I've also been looking at the SDR-IQ which does all of this internally by taking the IF output from the K3 and converts it directly into digital data which is then ferried to the computer over USB, forgoing the need for an extra soundcard. Now, I've seen two versions of PowerSDR. I've seen PowerSDR/IF (looks more developed/supported), and PowerSDR-IQ. What is the difference? I suppose the summary question of this email is. can you use PowerSDR/IF with an SDR-IQ rather than an LP-Pan? I personally would rather buy an SDR-IQ and take that extra hardware stage (possible audio loss) out of the picture. Thanks! Geoffrey Wolf AB3LS - Amateur Radio Callsign University of Pittsburgh '14 gr...@pitt.edu liltechd...@me.com (412) 450-1310 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR IQ/IF Questions
Sound card only. Larry N8LP On 4/6/2011 11:14 PM, Joe Subich, W4TV wrote: Larry, A recent addition, on which I am a contributing developer, is TRX-Pan. It is much simpler and cleaner looking than PowerSDR/IF and integrates more tightly with the K3. Does TRX-Pan support SDR-IQ or is it limited to soundcard based devices? 73, ... Joe, W4TV On 4/6/2011 10:09 PM, Larry Phipps wrote: Hi Geoffrey. I just read through your thread (I receive the reflector in digest mode). I didn't see one of your questions answered, so I will tackle it... I'm not aware of any version of PowerSDR which works with SDR-IQ. The interface has to be a sound card. My favorite version of PowerSDR is the /IF version by Scott, WU2X. I have tried others like PowerSDR/IQ, but they are not as well integrated with the K3 or LP-Bridge. A recent addition, on which I am a contributing developer, is TRX-Pan. It is much simpler and cleaner looking than PowerSDR/IF and integrates more tightly with the K3. In fact, more tightly than any other panadapter for the K3, I believe. You can read about it here, http://www.telepostinc.com/TRXP.html TRX-Pan does not provide demodulated audio as PowerSDR does, so it can't be used as a sub-rcvr, but it does display and track passbands for both VFOs very nicely. It's more like a P3 with huge screen and mouse control. I wasn't aware that Quisk now supports Windoze. Leigh might have mentioned this and I just forgot. I will play with it when I have some time. Maybe it could be customized to the level that TRX-Pan is in terms of K3 / LP-Bridge integration. Before deciding on a PC based solution versus a partial PC based solution versus a standalone solution, I would download and play with the programs that would be required for any of these. They are all available as a free download, although WU2X requests a donation to support PowerSDR/IF if you decide to go that route. You can set these up to control the rig and display noise from your sound card. This will help you decide if the PC approach is right for you. 73, Larry N8LP On 4/6/2011 5:11 PM, elecraft-requ...@mailman.qth.net wrote: Date: Wed, 6 Apr 2011 13:29:45 -0400 From: Geoffrey Wolfliltechdud...@gmail.com Subject: [Elecraft] SDR IQ/IF Questions To:elecraft@mailman.qth.net Message-ID:000f01cbf480$39143d10$ab3cb730$@gmail.com Content-Type: text/plain;charset=us-ascii Hello fellow SDR enthusiasts, I have looked around a little bit and haven't found a very definitive answer for the questions that I'm having about the way the K3 and external SDR equipment works. I've been looking into the LP-Pan which converts the IF output from the K3 into (im guessing) audio signals which then are converted into digital data by a soundcard. The trouble I'm having is understanding what exactly I/Q is. From what I understand, I/Q is digital data that software like CW Skimmer understands. Now, I've also been looking at the SDR-IQ which does all of this internally by taking the IF output from the K3 and converts it directly into digital data which is then ferried to the computer over USB, forgoing the need for an extra soundcard. Now, I've seen two versions of PowerSDR. I've seen PowerSDR/IF (looks more developed/supported), and PowerSDR-IQ. What is the difference? I suppose the summary question of this email is. can you use PowerSDR/IF with an SDR-IQ rather than an LP-Pan? I personally would rather buy an SDR-IQ and take that extra hardware stage (possible audio loss) out of the picture. Thanks! Geoffrey Wolf AB3LS - Amateur Radio Callsign University of Pittsburgh '14 gr...@pitt.edu liltechd...@me.com (412) 450-1310 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR IQ/IF Questions
Another new (free) software package under development combining an I/Q SDR panadapter and a contest logging program. Supports linux and windows: http://code.google.com/p/so2sdr/ features of the SDR panadapter with SO2SDR: -supports dual panadapter displays (for two radio contesting) -auto I/Q balancing -peak detection of signals -ability to mark signals on the panadapter (use to mark dupes in CW contests) -can be used to find open (unused) frequencies on a band -special support for Elecraft radios: it automatically inverts the display for the K2 when on the upper bands, for the K3 it reads the correct IF offset for the filter in use I can't guarantee it is completely free of bugs, but I use it for my own operating :) Tor N4OGW -- View this message in context: http://elecraft.365791.n2.nabble.com/SDR-IQ-IF-Questions-tp6246917p6248668.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
George I have a K3 s/n 3569 (factory built) which has RF Board Rev 3. I have also checked inside the radio to see that the IF output modification has been performed. My experience with the SDR-IQ is also disappointing. There are signals that I can hear on the K3 (up to S4 or 5) that I simply cannot see on the Spectravue panadapter. This is despite me setting the SDR-IQ to maximum gain - but maybe I'm missing something too. I'd also be interested to hear from anyone who already has the Rev 3 RF board and has SDR-IQ on the IF output working satisfactorily (i.e. can see weak signals!). John G4IRN. -- View this message in context: http://elecraft.365791.n2.nabble.com/SDR-IQ-tp5144397p5155001.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
I wonder what the sensitivity of the P3 is in this regard; I can't see it in the spec on quick inspection. David G3UNA George I have a K3 s/n 3569 (factory built) which has RF Board Rev 3. I have also checked inside the radio to see that the IF output modification has been performed. My experience with the SDR-IQ is also disappointing. There are signals that I can hear on the K3 (up to S4 or 5) that I simply cannot see on the Spectravue panadapter. This is despite me setting the SDR-IQ to maximum gain - but maybe I'm missing something too. I'd also be interested to hear from anyone who already has the Rev 3 RF board and has SDR-IQ on the IF output working satisfactorily (i.e. can see weak signals!). John G4IRN. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
Hi John, Having had an IC-756, I was sure I couldn't live without a band scope and so I hesitated and almost didn't get a K3. When I did get the K3 I immediately realized I had been correct in my initial assumption, so I began looking around for a solution. I was initially very disappointed with the performance of the SDR-IQ and was convinced it was something I was doing wrong. I was right, with the help of John, N1JM who sent me his ini file (and others who lent advice and suggestions) and some further hacking around; I was finally able to get the level of performance I had hoped for. Now I'm glad I didn't throw it out. I guess I've been spoiled and just like to know where the activity is without tuning or scanning... If you want I can send you my ini file off list. I had the exact same experience as you; I guess it doesn't come out of the box optimized for the K3... George...WA1NTA 73 -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John G4IRN Sent: Tuesday, June 08, 2010 2:56 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] SDR-IQ George I have a K3 s/n 3569 (factory built) which has RF Board Rev 3. I have also checked inside the radio to see that the IF output modification has been performed. My experience with the SDR-IQ is also disappointing. There are signals that I can hear on the K3 (up to S4 or 5) that I simply cannot see on the Spectravue panadapter. This is despite me setting the SDR-IQ to maximum gain - but maybe I'm missing something too. I'd also be interested to hear from anyone who already has the Rev 3 RF board and has SDR-IQ on the IF output working satisfactorily (i.e. can see weak signals!). John G4IRN. -- View this message in context: http://elecraft.365791.n2.nabble.com/SDR-IQ-tp5144397p5155001.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
Yes please George, send me the ini file!! 73, John From: WA1NTA [via Elecraft] Sent: Tuesday, June 08, 2010 8:55 PM To: John G4IRN Subject: Re: SDR-IQ Hi John, Having had an IC-756, I was sure I couldn't live without a band scope and so I hesitated and almost didn't get a K3. When I did get the K3 I immediately realized I had been correct in my initial assumption, so I began looking around for a solution. I was initially very disappointed with the performance of the SDR-IQ and was convinced it was something I was doing wrong. I was right, with the help of John, N1JM who sent me his ini file (and others who lent advice and suggestions) and some further hacking around; I was finally able to get the level of performance I had hoped for. Now I'm glad I didn't throw it out. I guess I've been spoiled and just like to know where the activity is without tuning or scanning... If you want I can send you my ini file off list. I had the exact same experience as you; I guess it doesn't come out of the box optimized for the K3... George...WA1NTA 73 -Original Message- From: [hidden email] [mailto:[hidden email]] On Behalf Of John G4IRN Sent: Tuesday, June 08, 2010 2:56 PM To: [hidden email] Subject: Re: [Elecraft] SDR-IQ George I have a K3 s/n 3569 (factory built) which has RF Board Rev 3. I have also checked inside the radio to see that the IF output modification has been performed. My experience with the SDR-IQ is also disappointing. There are signals that I can hear on the K3 (up to S4 or 5) that I simply cannot see on the Spectravue panadapter. This is despite me setting the SDR-IQ to maximum gain - but maybe I'm missing something too. I'd also be interested to hear from anyone who already has the Rev 3 RF board and has SDR-IQ on the IF output working satisfactorily (i.e. can see weak signals!). John G4IRN. -- View this message in context: http://elecraft.365791.n2.nabble.com/SDR-IQ-tp5144397p5155001.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html View message @ http://elecraft.365791.n2.nabble.com/SDR-IQ-tp5144397p5155204.html To unsubscribe from Re: SDR-IQ, click here. -- View this message in context: http://elecraft.365791.n2.nabble.com/SDR-IQ-tp5144397p5155213.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
The answer is it depends. :=) The tentative spec for the noise figure of the P3 itself is 10 dB, although it typically is a couple dB better than that. If you do the math, the noise figure of the K3/P3 system is within a dB or so of the NF of the K3 alone. But how does that translate to what you can see on the P3 screen? At maximum span (currently 200 kHz), the effective resolution bandwidth is a bit less than 500 Hz, so you should be able to see anything with a positive signal-to-noise ratio in a 500 Hz bandwidth. Actually you can do quite a bit better than that using the waterfall display because the human eye has an incredible ability to discern patterns. A weak signal that is hidden on the spectrum display is clearly visible on the waterfall. But the narrower the span the weaker the signal you can see. Unlike most band-scopes and SDR-based panadapters, the effective resolution bandwidth of the P3 automatically improves as you reduce the span. At the minimum 2 kHz, the effective resolution bandwidth is less than 5 Hz. You can easily see signals that are completely inaudible in the headphones. Alan N1AL On Tue, 2010-06-08 at 20:29 +0100, David Cutter wrote: I wonder what the sensitivity of the P3 is in this regard; I can't see it in the spec on quick inspection. David G3UNA George I have a K3 s/n 3569 (factory built) which has RF Board Rev 3. I have also checked inside the radio to see that the IF output modification has been performed. My experience with the SDR-IQ is also disappointing. There are signals that I can hear on the K3 (up to S4 or 5) that I simply cannot see on the Spectravue panadapter. This is despite me setting the SDR-IQ to maximum gain - but maybe I'm missing something too. I'd also be interested to hear from anyone who already has the Rev 3 RF board and has SDR-IQ on the IF output working satisfactorily (i.e. can see weak signals!). John G4IRN. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
I could send you my ini file and you could try that. John N1JM -- View this message in context: http://elecraft.365791.n2.nabble.com/SDR-IQ-tp5144397p5149846.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
I would appreciate that! Thanks John, George WA1NTA 73 _ From: N1JM [via Elecraft] [mailto:ml-node+5149846-469981766-541...@n2.nabble.com] Sent: Monday, June 07, 2010 12:30 PM To: WA1NTA Subject: Re: SDR-IQ I could send you my ini file and you could try that. John N1JM _ View message @ http://elecraft.365791.n2.nabble.com/SDR-IQ-tp5144397p5149846.html To unsubscribe from SDR-IQ, click (link removed) 6QGNvbWNhc3QubmV0fDUxNDQzOTd8LTEyODk4NjY4NjQ= here. -- View this message in context: http://elecraft.365791.n2.nabble.com/SDR-IQ-tp5144397p5150168.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
Hi Joe, Thanks for the link, do you know if Elecraft included this mod and when they may have started doing so, and if they did, how I can tell that my K3 has it? With the age of this unit (#4249), I would prefer not to start modifying it just yet, at least not until the warranty expires. It's unfortunate for me that I wasn't aware of this short fall before purchasing what I was told was a good solution for the lack of a panoramic display on the K3. Thanks to you and Don for the information. 73 George...WA1NTA -Original Message- From: Joe Subich, W4TV [mailto:li...@subich.com] Sent: Saturday, June 05, 2010 10:10 PM To: WA1NTA; Elecraft Reflector Subject: Re: [Elecraft] SDR-IQ Unless you have performed the IF Output buffer gain modification http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf or use the Clifton Labs broadband buffer amplifier between K3 SDR-IQ http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf what you see is entirely normal. The unmodified K3 IF output is approximately 17 dB lower than the RF signal input level. 73, ... Joe, W4TV On 6/5/2010 9:09 PM, WA1NTA wrote: Does anyone have the correct settings for the K3 to work properly with the SDR-IQ? I'm sure I've got something set wrong because when I connect the IQ to the IF and switch output the levels seem very low, I can see signals on 40 but they don't seem representative of what I am hearing and what the S Meter is telling me. When I switch to 17, I can't see any activity on the scope, but I can hear signals on the band. However when I connect the antenna directly to the IQ and set EXT Radio back to none, I am able to observe signals and tune them in on 17 with no problem. Thanks in advance. George WA1NTA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
On 6/6/2010 9:10 AM, QRZ wrote: Hi Joe, Thanks for the link, do you know if Elecraft included this mod and when they may have started doing so, and if they did, how I can tell that my K3 has it? With the age of this unit (#4249), I would prefer not to start modifying it just yet, at least not until the warranty expires. It's unfortunate for me that I wasn't aware of this short fall before purchasing what I was told was a good solution for the lack of a panoramic display on the K3. Thanks to you and Don for the information. 73 George...WA1NTA Elecraft started including this mod in Sept of 2009. Last sentence of the first paragraph on the pdf in the link. If the rig is older than that you need the mod kit. If it's newer you don't. I don't think doing an Elecraft approved and kit supplied modification voids the warranty. -- R. Kevin Stover ACØH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
Thanks for the link, do you know if Elecraft included this mod and when they may have started doing so, and if they did, how I can tell that my K3 has it? The modification information indicates that it was incorporated in production beginning about 1 Sept 2009 (RF board Rev H3 and later). With the age of this unit (#4249), I would prefer not to start modifying it just yet, at least not until the warranty expires. That modification will not void the warranty if done properly (e.g. if you don't use a torch!). However, if you prefer to avoid modifications, the Clifton Labs buffer is an alternative. I messed up the link in the last response - here's the correct one: http://cliftonlaboratories.com/z1_buffer_amp.htm 73, ... Joe, W4TV On 6/6/2010 10:10 AM, QRZ wrote: Hi Joe, Thanks for the link, do you know if Elecraft included this mod and when they may have started doing so, and if they did, how I can tell that my K3 has it? With the age of this unit (#4249), I would prefer not to start modifying it just yet, at least not until the warranty expires. It's unfortunate for me that I wasn't aware of this short fall before purchasing what I was told was a good solution for the lack of a panoramic display on the K3. Thanks to you and Don for the information. 73 George...WA1NTA -Original Message- From: Joe Subich, W4TV [mailto:li...@subich.com] Sent: Saturday, June 05, 2010 10:10 PM To: WA1NTA; Elecraft Reflector Subject: Re: [Elecraft] SDR-IQ Unless you have performed the IF Output buffer gain modification http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf or use the Clifton Labs broadband buffer amplifier between K3 SDR-IQ http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf what you see is entirely normal. The unmodified K3 IF output is approximately 17 dB lower than the RF signal input level. 73, ... Joe, W4TV On 6/5/2010 9:09 PM, WA1NTA wrote: Does anyone have the correct settings for the K3 to work properly with the SDR-IQ? I'm sure I've got something set wrong because when I connect the IQ to the IF and switch output the levels seem very low, I can see signals on 40 but they don't seem representative of what I am hearing and what the S Meter is telling me. When I switch to 17, I can't see any activity on the scope, but I can hear signals on the band. However when I connect the antenna directly to the IQ and set EXT Radio back to none, I am able to observe signals and tune them in on 17 with no problem. Thanks in advance. George WA1NTA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
Joe, I guess my confusion is that if the mod was included beginning in Sept 2009 then I guess I'm back to square one with the SDR-IQ. Do you know how I can verify that the mod was done before I try another solution? Thanks and 73... George, WA1NTA -Original Message- From: Joe Subich, W4TV [mailto:li...@subich.com] Sent: Sunday, June 06, 2010 10:55 AM To: QRZ; Elecraft Reflector Subject: Re: [Elecraft] SDR-IQ Thanks for the link, do you know if Elecraft included this mod and when they may have started doing so, and if they did, how I can tell that my K3 has it? The modification information indicates that it was incorporated in production beginning about 1 Sept 2009 (RF board Rev H3 and later). With the age of this unit (#4249), I would prefer not to start modifying it just yet, at least not until the warranty expires. That modification will not void the warranty if done properly (e.g. if you don't use a torch!). However, if you prefer to avoid modifications, the Clifton Labs buffer is an alternative. I messed up the link in the last response - here's the correct one: http://cliftonlaboratories.com/z1_buffer_amp.htm 73, ... Joe, W4TV On 6/6/2010 10:10 AM, QRZ wrote: Hi Joe, Thanks for the link, do you know if Elecraft included this mod and when they may have started doing so, and if they did, how I can tell that my K3 has it? With the age of this unit (#4249), I would prefer not to start modifying it just yet, at least not until the warranty expires. It's unfortunate for me that I wasn't aware of this short fall before purchasing what I was told was a good solution for the lack of a panoramic display on the K3. Thanks to you and Don for the information. 73 George...WA1NTA -Original Message- From: Joe Subich, W4TV [mailto:li...@subich.com] Sent: Saturday, June 05, 2010 10:10 PM To: WA1NTA; Elecraft Reflector Subject: Re: [Elecraft] SDR-IQ Unless you have performed the IF Output buffer gain modification http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf or use the Clifton Labs broadband buffer amplifier between K3 SDR-IQ http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf what you see is entirely normal. The unmodified K3 IF output is approximately 17 dB lower than the RF signal input level. 73, ... Joe, W4TV On 6/5/2010 9:09 PM, WA1NTA wrote: Does anyone have the correct settings for the K3 to work properly with the SDR-IQ? I'm sure I've got something set wrong because when I connect the IQ to the IF and switch output the levels seem very low, I can see signals on 40 but they don't seem representative of what I am hearing and what the S Meter is telling me. When I switch to 17, I can't see any activity on the scope, but I can hear signals on the band. However when I connect the antenna directly to the IQ and set EXT Radio back to none, I am able to observe signals and tune them in on 17 with no problem. Thanks in advance. George WA1NTA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
Do you know how I can verify that the mod was done before I try another solution? Check your RF board to see if it is marked Rev H3 or later. Also, check the resistance of the ONE resistor that was changed. The information is in that modification pdf. 73, ... Joe, W4TV On 6/6/2010 11:27 AM, QRZ wrote: Joe, I guess my confusion is that if the mod was included beginning in Sept 2009 then I guess I'm back to square one with the SDR-IQ. Do you know how I can verify that the mod was done before I try another solution? Thanks and 73... George, WA1NTA -Original Message- From: Joe Subich, W4TV [mailto:li...@subich.com] Sent: Sunday, June 06, 2010 10:55 AM To: QRZ; Elecraft Reflector Subject: Re: [Elecraft] SDR-IQ Thanks for the link, do you know if Elecraft included this mod and when they may have started doing so, and if they did, how I can tell that my K3 has it? The modification information indicates that it was incorporated in production beginning about 1 Sept 2009 (RF board Rev H3 and later). With the age of this unit (#4249), I would prefer not to start modifying it just yet, at least not until the warranty expires. That modification will not void the warranty if done properly (e.g. if you don't use a torch!). However, if you prefer to avoid modifications, the Clifton Labs buffer is an alternative. I messed up the link in the last response - here's the correct one: http://cliftonlaboratories.com/z1_buffer_amp.htm 73, ... Joe, W4TV On 6/6/2010 10:10 AM, QRZ wrote: Hi Joe, Thanks for the link, do you know if Elecraft included this mod and when they may have started doing so, and if they did, how I can tell that my K3 has it? With the age of this unit (#4249), I would prefer not to start modifying it just yet, at least not until the warranty expires. It's unfortunate for me that I wasn't aware of this short fall before purchasing what I was told was a good solution for the lack of a panoramic display on the K3. Thanks to you and Don for the information. 73 George...WA1NTA -Original Message- From: Joe Subich, W4TV [mailto:li...@subich.com] Sent: Saturday, June 05, 2010 10:10 PM To: WA1NTA; Elecraft Reflector Subject: Re: [Elecraft] SDR-IQ Unless you have performed the IF Output buffer gain modification http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf or use the Clifton Labs broadband buffer amplifier between K3 SDR-IQ http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf what you see is entirely normal. The unmodified K3 IF output is approximately 17 dB lower than the RF signal input level. 73, ... Joe, W4TV On 6/5/2010 9:09 PM, WA1NTA wrote: Does anyone have the correct settings for the K3 to work properly with the SDR-IQ? I'm sure I've got something set wrong because when I connect the IQ to the IF and switch output the levels seem very low, I can see signals on 40 but they don't seem representative of what I am hearing and what the S Meter is telling me. When I switch to 17, I can't see any activity on the scope, but I can hear signals on the band. However when I connect the antenna directly to the IQ and set EXT Radio back to none, I am able to observe signals and tune them in on 17 with no problem. Thanks in advance. George WA1NTA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] SDR-IQ
Does anyone have the correct settings for the K3 to work properly with the SDR-IQ? I'm sure I've got something set wrong because when I connect the IQ to the IF and switch output the levels seem very low, I can see signals on 40 but they don't seem representative of what I am hearing and what the S Meter is telling me. When I switch to 17, I can't see any activity on the scope, but I can hear signals on the band. However when I connect the antenna directly to the IQ and set EXT Radio back to none, I am able to observe signals and tune them in on 17 with no problem. Thanks in advance. George WA1NTA -- View this message in context: http://elecraft.365791.n2.nabble.com/SDR-IQ-tp5144397p5144397.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
Unless you have performed the IF Output buffer gain modification http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf or use the Clifton Labs broadband buffer amplifier between K3 SDR-IQ http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf what you see is entirely normal. The unmodified K3 IF output is approximately 17 dB lower than the RF signal input level. 73, ... Joe, W4TV On 6/5/2010 9:09 PM, WA1NTA wrote: Does anyone have the correct settings for the K3 to work properly with the SDR-IQ? I'm sure I've got something set wrong because when I connect the IQ to the IF and switch output the levels seem very low, I can see signals on 40 but they don't seem representative of what I am hearing and what the S Meter is telling me. When I switch to 17, I can't see any activity on the scope, but I can hear signals on the band. However when I connect the antenna directly to the IQ and set EXT Radio back to none, I am able to observe signals and tune them in on 17 with no problem. Thanks in advance. George WA1NTA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft SDR-IQ Spectraview Presentation
Steve in the SDR-IQ Spectraview videos on you-tube the averaging was set to 1 which is much to fast as it shows all noise and signals in real time. Changing the averaging setting to 5 or 10 will average out all peaks and give you a very good presentation of signals. 73 Dave KD1NA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] SDR-IQ, Etherlogic and CW via serial
I used CW keyeing via serial successfuly. Now after splitting the port via Eterlogic to connect SDR-IQ, it does not work. Did anybody get it to work? Would LP-Bridge work? Would it cause timing problems? Ignacy, NO9E -- View this message in context: http://n2.nabble.com/SDR-IQ-Etherlogic-and-CW-via-serial-tp4479595p4479595.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ
It is a known issue with Spectravue. The only down side to the software at the moment. Mike Maarten-2 wrote: I am setting up a K3 with a SDR-IQ and spectravue. When selecting K3 in extRadiosetup menu I cannot keep the IF inverted. Is this a software problem with spectravue? Anyone on this list working with SDR-IQ with Spectravue 3.01? Thanks Maarten __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- View this message in context: http://n2.nabble.com/SDR-IQ-tp3733686p3734699.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] SDR-IQ
I am setting up a K3 with a SDR-IQ and spectravue. When selecting K3 in extRadiosetup menu I cannot keep the IF inverted. Is this a software problem with spectravue? Anyone on this list working with SDR-IQ with Spectravue 3.01? Thanks Maarten __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ users?
Neither the SDR-IQ or the LP-PAN have sound cards in them. The SDR-IQ is an full blown SDR receiver which does the data conversion onboard then sends the results to the computer via USB port. The SDR-IQ converts the entire spectrum from 500Hz to 30MHz to IQ data at an 67MHz sample rate. The LP-PAN is an IF to computer interface. It takes the data off the K3 IF port, at 8.215MHz, converts it to IQ data, and sends it on to the computer sound card which samples the data at a 192KHz rate (for better than average sound cards). The LP-PAN/E-MU 0202 combo, which seems to be the sweet spot, are just a little more than half the price of the SDR-IQ. Brett Howard wrote: So gentlemen what is the real difference between LP-PAN and the SDR-IQ? Seems like the main diff that I'm seeing is that one has the sound card built into it Any other thoughts? -- R. Kevin Stover ACØH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ users?
The LP-PAN/E-MU 0202 combo, which seems to be the sweet spot, are just a little more than half the price of the SDR-IQ. That's not correct. LP-Pan = $225 (assembled), E-MU 0202 = $199.95 (list) ... total $425 vs. $499 list for the SDR-IQ. The difference in street prices will vary significantly deepening on shopping skills and the availability of used or kit options. The LP-PAN is an IF to computer interface. It takes the data off the K3 IF port, at 8.215MHz, converts it to IQ data, and sends it on to the computer sound card which samples the data at a 192KHz rate (for better than average sound cards). LP-Pan with the E-MU 0202 (USB) soundcard, LP-Bridge and one of the PowerSDR versions are resource intensive for the computer. SDR-IQ/SpectraVue have much more reasonable CPU requirements. Unlike PowerSDR, SpectraVue will operate in a Window and can provide simultaneous spectrum/waterfall displays. Although not important here, SDR-IQ also supports a broad range of non-Elecraft transceivers. 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of R. Kevin Stover Sent: Saturday, August 01, 2009 7:11 AM To: Brett Howard Cc: 'Elecraft Reflector' Subject: Re: [Elecraft] SDR-IQ users? Neither the SDR-IQ or the LP-PAN have sound cards in them. The SDR-IQ is an full blown SDR receiver which does the data conversion onboard then sends the results to the computer via USB port. The SDR-IQ converts the entire spectrum from 500Hz to 30MHz to IQ data at an 67MHz sample rate. The LP-PAN is an IF to computer interface. It takes the data off the K3 IF port, at 8.215MHz, converts it to IQ data, and sends it on to the computer sound card which samples the data at a 192KHz rate (for better than average sound cards). The LP-PAN/E-MU 0202 combo, which seems to be the sweet spot, are just a little more than half the price of the SDR-IQ. Brett Howard wrote: So gentlemen what is the real difference between LP-PAN and the SDR-IQ? Seems like the main diff that I'm seeing is that one has the sound card built into it Any other thoughts? -- R. Kevin Stover ACØH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ users?
Hallo Greg, using SDR-IQ with SpectraVue 2.34 you dont need a virtual com port - in the SDR-IQ setup menu you must only select ext radio=Elecraft K3. Try SpectraVue 3.0 Beta 30, there are some more option as in 2.34. '73 Detlef Greg - AB7R wrote: Thanks Bruce. It didn't but that's because I don't have the K3 connected directly to the SDR-IQ. What I had to do after some trial and error was to go to the USB device properties and tell it to set up a virtual com port (in device manager). Then I set LP-Bridge to the same port and restarted everything. Now after a little tweaking of the IF freq and zero-beating with a sig generator it seems right on and tracks/controls the K3 fine. 73 Greg AB7R On Jul 31, 2009, at 3:46 PM, Bruce McLaughlin wrote: Start up SDR. Then push the setup button and the cat submenu button when it comes up. You'll then see a choice of which com port you wish to use along with the other parameters that are necessary to be set up. That should do the trick. Bruce-W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gregory Fischer Sent: Friday, July 31, 2009 6:16 PM To: Elecraft Reflector Subject: [Elecraft] SDR-IQ users? Looking for some assistance in setting up SDR-IQ. I ran the setup and connected the IQ and it is receiving sigs from the K3's IF. The problem is I cannot get it to communicate with the K3 to follow frequency changes from the radioor when clicking on a signal to have it change the radios frequency. I would have thought that after the setup I would find something for the SDR-IQ in the device manager but I don't.no com port setup for it or anything. Did I miss a step somewhere? THanks Greg AB7R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- View this message in context: http://n2.nabble.com/SDR-IQ-users--tp3365362p3369388.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ users?
Just checked one of the largest online computer parts retailers, newegg.com, and they've still got the E-MU 0202 selling for $99.99, same price I paid for it 6 months ago so I wouldn't expect other online retailers to be higher or lower than that by more than $5. So, $225 + $100 = $325 or $175 + $100 = $275 for the LP-PAN kit plus E-MU, compared to $499.99 for the SDR-IQ at Universal. The E-MU is processor intensive but runs real well on any machine 2 years old or newer. You won't be running this combo on that old PIII with USB 1.1 ports sitting in the corner but I'd bet the SDR-IQ wouldn't work real well with that kind of machine either. Another way to get around the resource sensitivity of the E-MU 0202 is the Infrasonic Quartet PCI internal sound card for $139.99. Larry is now making versions of the LP-PAN for these rigs and IF frequencies. 8.215 MHz (Elecraft K3) 8.83 MHz (most older Kenwoods) 9.00 MHz (TenTec Orion) 4.915 MHz (Elecraft K2) 10.7 MHz (IC-R8500/9500 and others) Joe Subich, W4TV wrote: The LP-PAN/E-MU 0202 combo, which seems to be the sweet spot, are just a little more than half the price of the SDR-IQ. That's not correct. LP-Pan = $225 (assembled), E-MU 0202 = $199.95 (list) ... total $425 vs. $499 list for the SDR-IQ. The difference in street prices will vary significantly deepening on shopping skills and the availability of used or kit options. -- R. Kevin Stover ACØH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ users?
Just a minor correction: On Sat, 2009-08-01 at 06:10 -0500, R. Kevin Stover wrote: Neither the SDR-IQ or the LP-PAN have sound cards in them. The SDR-IQ is an full blown SDR receiver which does the data conversion onboard then sends the results to the computer via USB port. The SDR-IQ converts the entire spectrum from 500Hz to 30MHz to IQ data at an 67MHz sample rate. Actually, while it can be tuned over the 30 MHz range, I believe it only down-converts about 200 kHz at a time. Al N1AL The LP-PAN is an IF to computer interface. It takes the data off the K3 IF port, at 8.215MHz, converts it to IQ data, and sends it on to the computer sound card which samples the data at a 192KHz rate (for better than average sound cards). The LP-PAN/E-MU 0202 combo, which seems to be the sweet spot, are just a little more than half the price of the SDR-IQ. Brett Howard wrote: So gentlemen what is the real difference between LP-PAN and the SDR-IQ? Seems like the main diff that I'm seeing is that one has the sound card built into it Any other thoughts? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ users?
The E-MU is processor intensive but runs real well on any machine 2 years old or newer. You won't be running this combo on that old PIII with USB 1.1 ports sitting in the corner but I'd bet the SDR-IQ wouldn't work real well with that kind of machine either. SDR-IQ runs very well on a 1.8 GHz/512 MB single core P4 class laptop that is brought to its knees by PowerSDR and an E-MU 0202. There are a lot of sub-2 GHz singe core systems in ham shacks. 73, ... Joe, W4TV -Original Message- From: R. Kevin Stover [mailto:rksto...@mchsi.com] Sent: Saturday, August 01, 2009 11:27 AM To: li...@subich.com Cc: 'Brett Howard'; 'Elecraft Reflector' Subject: Re: [Elecraft] SDR-IQ users? Just checked one of the largest online computer parts retailers, newegg.com, and they've still got the E-MU 0202 selling for $99.99, same price I paid for it 6 months ago so I wouldn't expect other online retailers to be higher or lower than that by more than $5. So, $225 + $100 = $325 or $175 + $100 = $275 for the LP-PAN kit plus E-MU, compared to $499.99 for the SDR-IQ at Universal. The E-MU is processor intensive but runs real well on any machine 2 years old or newer. You won't be running this combo on that old PIII with USB 1.1 ports sitting in the corner but I'd bet the SDR-IQ wouldn't work real well with that kind of machine either. Another way to get around the resource sensitivity of the E-MU 0202 is the Infrasonic Quartet PCI internal sound card for $139.99. Larry is now making versions of the LP-PAN for these rigs and IF frequencies. 8.215 MHz (Elecraft K3) 8.83 MHz (most older Kenwoods) 9.00 MHz (TenTec Orion) 4.915 MHz (Elecraft K2) 10.7 MHz (IC-R8500/9500 and others) Joe Subich, W4TV wrote: The LP-PAN/E-MU 0202 combo, which seems to be the sweet spot, are just a little more than half the price of the SDR-IQ. That's not correct. LP-Pan = $225 (assembled), E-MU 0202 = $199.95 (list) ... total $425 vs. $499 list for the SDR-IQ. The difference in street prices will vary significantly deepening on shopping skills and the availability of used or kit options. -- R. Kevin Stover ACØH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] SDR-IQ users?
Looking for some assistance in setting up SDR-IQ. I ran the setup and connected the IQ and it is receiving sigs from the K3's IF. The problem is I cannot get it to communicate with the K3 to follow frequency changes from the radioor when clicking on a signal to have it change the radios frequency. I would have thought that after the setup I would find something for the SDR-IQ in the device manager but I don't.no com port setup for it or anything. Did I miss a step somewhere? THanks Greg AB7R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ users?
Start up SDR. Then push the setup button and the cat submenu button when it comes up. You'll then see a choice of which com port you wish to use along with the other parameters that are necessary to be set up. That should do the trick. Bruce-W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gregory Fischer Sent: Friday, July 31, 2009 6:16 PM To: Elecraft Reflector Subject: [Elecraft] SDR-IQ users? Looking for some assistance in setting up SDR-IQ. I ran the setup and connected the IQ and it is receiving sigs from the K3's IF. The problem is I cannot get it to communicate with the K3 to follow frequency changes from the radioor when clicking on a signal to have it change the radios frequency. I would have thought that after the setup I would find something for the SDR-IQ in the device manager but I don't.no com port setup for it or anything. Did I miss a step somewhere? THanks Greg AB7R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ users?
Thanks Bruce. It didn't but that's because I don't have the K3 connected directly to the SDR-IQ. What I had to do after some trial and error was to go to the USB device properties and tell it to set up a virtual com port (in device manager). Then I set LP-Bridge to the same port and restarted everything. Now after a little tweaking of the IF freq and zero-beating with a sig generator it seems right on and tracks/controls the K3 fine. 73 Greg AB7R On Jul 31, 2009, at 3:46 PM, Bruce McLaughlin wrote: Start up SDR. Then push the setup button and the cat submenu button when it comes up. You'll then see a choice of which com port you wish to use along with the other parameters that are necessary to be set up. That should do the trick. Bruce-W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gregory Fischer Sent: Friday, July 31, 2009 6:16 PM To: Elecraft Reflector Subject: [Elecraft] SDR-IQ users? Looking for some assistance in setting up SDR-IQ. I ran the setup and connected the IQ and it is receiving sigs from the K3's IF. The problem is I cannot get it to communicate with the K3 to follow frequency changes from the radioor when clicking on a signal to have it change the radios frequency. I would have thought that after the setup I would find something for the SDR-IQ in the device manager but I don't.no com port setup for it or anything. Did I miss a step somewhere? THanks Greg AB7R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ users?
So gentlemen what is the real difference between LP-PAN and the SDR-IQ? Seems like the main diff that I'm seeing is that one has the sound card built into it Any other thoughts? On Fri, 2009-07-31 at 15:55 -0700, Gregory Fischer wrote: Thanks Bruce. It didn't but that's because I don't have the K3 connected directly to the SDR-IQ. What I had to do after some trial and error was to go to the USB device properties and tell it to set up a virtual com port (in device manager). Then I set LP-Bridge to the same port and restarted everything. Now after a little tweaking of the IF freq and zero-beating with a sig generator it seems right on and tracks/controls the K3 fine. 73 Greg AB7R On Jul 31, 2009, at 3:46 PM, Bruce McLaughlin wrote: Start up SDR. Then push the setup button and the cat submenu button when it comes up. You'll then see a choice of which com port you wish to use along with the other parameters that are necessary to be set up. That should do the trick. Bruce-W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gregory Fischer Sent: Friday, July 31, 2009 6:16 PM To: Elecraft Reflector Subject: [Elecraft] SDR-IQ users? Looking for some assistance in setting up SDR-IQ. I ran the setup and connected the IQ and it is receiving sigs from the K3's IF. The problem is I cannot get it to communicate with the K3 to follow frequency changes from the radioor when clicking on a signal to have it change the radios frequency. I would have thought that after the setup I would find something for the SDR-IQ in the device manager but I don't.no com port setup for it or anything. Did I miss a step somewhere? THanks Greg AB7R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IQ vs LP-Pan
I think you guys are talking about 2 different products. SDR-IQ is made by RF Space. It's not an LP-PAN. It would be nice to have an in depth comparison between these units. I do know that the IQ has no direction to the K3's comm port and no dedicated sound card but that's about it. Steve N4LQ n...@carolina.rr.com - Original Message - From: Gregory Fischer a...@cablespeed.com To: Bruce McLaughlin bmcla...@bex.net Cc: 'Elecraft Reflector' elecraft@mailman.qth.net Sent: Friday, July 31, 2009 6:55 PM Subject: Re: [Elecraft] SDR-IQ users? Thanks Bruce. It didn't but that's because I don't have the K3 connected directly to the SDR-IQ. What I had to do after some trial and error was to go to the USB device properties and tell it to set up a virtual com port (in device manager). Then I set LP-Bridge to the same port and restarted everything. Now after a little tweaking of the IF freq and zero-beating with a sig generator it seems right on and tracks/controls the K3 fine. 73 Greg AB7R On Jul 31, 2009, at 3:46 PM, Bruce McLaughlin wrote: Start up SDR. Then push the setup button and the cat submenu button when it comes up. You'll then see a choice of which com port you wish to use along with the other parameters that are necessary to be set up. That should do the trick. Bruce-W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gregory Fischer Sent: Friday, July 31, 2009 6:16 PM To: Elecraft Reflector Subject: [Elecraft] SDR-IQ users? Looking for some assistance in setting up SDR-IQ. I ran the setup and connected the IQ and it is receiving sigs from the K3's IF. The problem is I cannot get it to communicate with the K3 to follow frequency changes from the radioor when clicking on a signal to have it change the radios frequency. I would have thought that after the setup I would find something for the SDR-IQ in the device manager but I don't.no com port setup for it or anything. Did I miss a step somewhere? THanks Greg AB7R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] SDR-IQ + K2
Mike wrote: +++ I was wondering if anyone on the list is using the SDR-IQ software defined radio and what their thoughts are on it. Can CW Skimmer be used with it? Does it have to run through my K2? So and so forth. I don't use cw skimmer but I do contest a lot and would like to know how much woule it really help. Picked up a SDR-IQ some time ago for use as a general coverage SW receiver. The SDR-IQ is the size of a pack of playing cards. The packaged control software, SpectraVue, is highly capable and works beautifully with a plain vanilla, 5 year old Dell laptop (XP Pro)through one of the USB ports and using the on board soundcard. Highly recommend the SDR-IQ for on the go HF, 500 hz to 30 mhz, all mode SWLing (AM, USB, LSB, DSB, CW). Comparable in performance to a R-71A. Several months ago added a Cliffton Laboratories Z1 IF buffer-amplifier / tap to the K2 (w/KIO2 RS-232 interface)and frequently use the SDR-IQ as a panoramic spectrum monitor. This is an easy modification and Cliffton Labs provides outstanding support (also highly recommend). Typically, use the SDR-IQ + K2 combination to monitor about 150 khz of spectrum for general activity. For example, in the evenings, generally observe 30 to 40 cw sigs in the segment from 7.0 to 7.15 mhz)-- 4 or 5 closely spaced is a good tip that dx is present. A mouse click at that location on the laptop screen will take the K2 instantly there to check what is going on. More often, use the SDR-IQ to simply check for a clear space to CQ or to find an interesting QSO to listen in on (the laptop screen resolution is plenty adequate to visually decode cw if desired). In summary, the SDR-IQ and K2 (with Z1) work and track very well together. Have not used cw skimmer but, could. Not of interest for contesting as this technology, imho, is assisted whereas just me and the radio (plus laptop with no spotting clusters attached)is preferred for this activity. This month's issue of the NCJ has several very good articles on SDR-IQ setup and utilization. 73, Chuck AF4PP ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] SDR-IQ info.
I was wondering if anyone on the list is using the SDR-IQ software defined radio and what their thoughts are on it. Can CW Skimmer be used with it? Does it have to run through my K2? So and so forth. I don't use cw skimmer but I do contest a lot and would like to know how much woule it really help. The SDR-IQ web site seems to stir more questions that it answers. Thanks in advance! Mike AB0TX.. K2 #4841___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
