Re: [Elecraft] P3 vs SDR-IQ
Dale See, there are limitations to both tracking and fixed modes. 1. Yes, in tracking mode you don’t lose your waterfall - BUT you lose your averaging when you tune. 2. If you want averaging to stay on all the time - tuning or not, then you can choose “fixed”, but then the limitation with that mode, is that your VFO filter moves along the display, drops off the edge, and refreshes the waterfall history. I would like to see a combination of both, which is the way it works with Flex and PSDR - VFO receive filter remains centred, and does not move off to one side….and at the same time, while tuning, averaging remains on all the time. Yes, I have tried the MKR option, but find it quite fiddly, lots of knob pushing to achieve something, so I generally don’t use it. 73 John, ZS5J C91J A25J On 31 Jul 2015, at 4:15 PM, d...@lightstream.net wrote: John, It's true that in Fixed tune mode when you cross the boundary at either end of the current span, the screen refreshes to the new span and you lose your waterfall history. But in Tracking mode, don't you lose waterfall history each time you tune? Regarding your PX3, have you tried positioning MKR A on the signal of interest, and then tapping the 'SELECT' knob on the PX3 to instantly take you there? By doing that, you won't lose track of that signal. If you decide you want to go back, push and hold the 'SELECT' knob to return to your previous frequency. 73, Dale WA8SRA snipped / And also, in Fixed mode, when it reaches the end of the display, it jumps back to the middle, and refreshes the waterfall - so any waterfall history that you had, is lost :( I have never used a Flex 6000 series radio, but I have been using, and still have the 5000A, 3000 and 1500. The system they use works just the way I want it - the RX filter remains centred in the display, and when you tune, the averaging remains on at all times. 73 John, ZS5J __ 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
Re: [Elecraft] P3 vs SDR-IQ
John, The P3 and PX3 use entirely different interfaces to the radio. The P3 taps into the K3/K3S 8.2 MHz I.F., while the PX3 uses a baseband I/Q signal from the KX3. While both methods provide the basic benefits of a panadapter, the P3's implementation provides higher performance, using more expensive hardware, and is priced accordingly. The P3 is incredibly smooth in its tuning and presentation, and the unit is widely regarded as one of best panadapters available. Averaging, fixed-tune mode, noise blanking, peak detection and its many other features are all free of any sort of tuning noise or artifacts. If you're in fixed-tune mode, where the VFO/filter cursor moves across the screen, averaging information is preserved. There is no increase in the noise floor, no matter how fast you tune. In tracking mode, where the VFO/filter cursor stays fixed at the center of the screen, averaging information is reset when you tune. This has always been the case, but I'll mention this to our panadapter design staff and see if it might be possible to preserve the averaging data in tracking mode. In any case, I hope you can observe a P3 in action sometime. 73, Wayne N6KR On Jul 31, 2015, at 1:13 AM, John Kramer jkra...@iafrica.com wrote: I think I know what Joe is getting at….and I agree with him, if I understand him correctly. When he refers to “noise floor” he means that he loses averaging when he tunes, resulting in the crazy spectrum display (what Joe refers to as noise). I haven’t seen or used a P3, but I bought my first Elecraft products 3 weeks ago - a KX3 and PX3. If the P3 behaves in the same manner as the PX3 then I can see what Joe is complaining about. Right out the box my PX3 had this frustrating feature of losing averaging the moment you spun the VFO on the KX3. I pointed this out to a local KX3/PX3 owner, and he told me to download the latest firmware which allows you to select “fixed mode” or “fixed track”. I downloaded the firmware. YES, it kinda fixes the problem….you can now tune the radio and KEEP the averaging….but the problem is that now your receive filter goes down the display as you tune. This is better than the previous method, however you now have your receive filter heavily offset from the centre of the display. You might tune down the band, with your RX filter at the bottom of the scale, and you are now unable to see much below, but you can see a huge chunk of the band above you. I bought the KX3 and PX3 for portable ops. My main rigs for the past 5 years are Flex rigs. I have the 5000/3000/1500 and will be getting a 6500 soon as my shack rigs. With these rigs and PSDR, your RX filter REMAINS CENTRED and when you tune around the band, you DON’T LOSE your averaging. This is how I like it to be, and if Elecraft can achieve this in a firmware update, I would be very happy. 73 John, ZS5J On 31 Jul 2015, at 2:56 AM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: Hi Joe - Do you have signal averaging turned on to reduce the noise floor? If you do, it has to stop averaging when the freq is being changed while tuning, temporarily raising the noise floor slightly. It then re-starts multi-pass averaging once you stop tuning. This is normal for signal averaging. I run with averaging set =2 or 3 passes. When I tune I barely notice a small increase in the noise floor. If you have a lot of local pulse noise, you might want to turn on the P3s NB function to help. If Averaging is turned off, I can't think of a normal scenario where the noise floor would go up when tuning the band. It certainly does not here. Anyone else have any ideas? 73, Eric /elecraft.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 Message delivered to n...@elecraft.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 vs SDR-IQ
- - Re: [Elecraft] P3 vs SDR-IQ http://www.mail-archive.com/elecraft@mailman.qth.net/msg183788.html Wes (N7WS) - Re: [Elecraft] P3 vs SDR-IQ http://www.mail-archive.com/elecraft@mailman.qth.net/msg183809.html Guy Olinger K2AV - Re: [Elecraft] P3 vs SDR-IQ http://www.mail-archive.com/elecraft@mailman.qth.net/msg183817.html Joe Subich, W4TV - [Elecraft] P3 vs SDR-IQ http://www.mail-archive.com/elecraft@mailman.qth.net/msg183821.html Joe Word - - Re: [Elecraft] P3 vs SDR-IQ Eric Swartz - WA6HHQ, Elecraft - - Re: [Elecraft] P3 vs SDR-IQ http://www.mail-archive.com/elecraft@mailman.qth.net/msg183823.html Walter Underwood - Re: [Elecraft] P3 vs SDR-IQ http://www.mail-archive.com/elecraft@mailman.qth.net/msg183838.html John Kramer - - Re: [Elecraft] P3 vs SDR-I... http://www.mail-archive.com/elecraft@mailman.qth.net/msg183842.html Stewart - Re: [Elecraft] P3 vs SDR-IQ http://www.mail-archive.com/elecraft@mailman.qth.net/msg183824.html Phil Wheeler - - Re: [Elecraft] P3 vs SDR-IQ http://www.mail-archive.com/elecraft@mailman.qth.net/msg183826.html Charlie T, K3ICH - Re: [Elecraft] P3 vs SDR-IQ http://www.mail-archive.com/elecraft@mailman.qth.net/msg183827.html Hank P - Re: [Elecraft] P3 vs SDR-IQ http://www.mail-archive.com/elecraft@mailman.qth.net/msg183828.html Jim Brown - Re: [Elecraft] P3 vs SDR-IQ http://www.mail-archive.com/elecraft@mailman.qth.net/msg183829.html d...@lightstream.net Reply via email to [image: The Mail Archive] http://www.mail-archive.com/ - The Mail Archive home http://www.mail-archive.com/ - elecraft - all messages http://www.mail-archive.com/elecraft@mailman.qth.net/ - elecraft - about the list http://www.mail-archive.com/elecraft@mailman.qth.net/info.html - Expand http://www.mail-archive.com/search?l=elecraft@mailman.qth.netq=subject:%22Re%5C%3A+%5C%5BElecraft%5C%5D+P3+vs+SDR%5C-IQ%22o=newestf=1 - Previous message http://www.mail-archive.com/elecraft@mailman.qth.net/msg183821.html - Next message http://www.mail-archive.com/elecraft@mailman.qth.net/msg183823.html [image: elecraft] http://www.mail-archive.com/elecraft@mailman.qth.net/msg183822.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 Message delivered to jkra...@iafrica.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 vs SDR-IQ
John, It's true that in Fixed tune mode when you cross the boundary at either end of the current span, the screen refreshes to the new span and you lose your waterfall history. But in Tracking mode, don't you lose waterfall history each time you tune? Regarding your PX3, have you tried positioning MKR A on the signal of interest, and then tapping the 'SELECT' knob on the PX3 to instantly take you there? By doing that, you won't lose track of that signal. If you decide you want to go back, push and hold the 'SELECT' knob to return to your previous frequency. 73, Dale WA8SRA snipped / And also, in Fixed mode, when it reaches the end of the display, it jumps back to the middle, and refreshes the waterfall - so any waterfall history that you had, is lost :( I have never used a Flex 6000 series radio, but I have been using, and still have the 5000A, 3000 and 1500. The system they use works just the way I want it - the RX filter remains centred in the display, and when you tune, the averaging remains on at all times. 73 John, ZS5J __ 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
Re: [Elecraft] P3 vs SDR-IQ
I agree with Joe. My usage of the P3 and the PX3 is 100% fixed-tune mode, and I find both the P3 and PX3 to work very well for me. They do differ in amplitude scale in A-B comparisons, but this is compensated for by scale adjustments. I've never really found a situation where Tracking mode is helpful, but maybe I'm missing something. 73, Phil W7OX On 7/31/15 8:03 AM, Joe Subich, W4TV wrote: It’s difficult to see a station, and find where you are trying to tune to, when the display loses itsaveraging. As a long time user of the P3, I strenuously disagree with that assessment. 73, ... Joe, W4TV On 2015-07-31 9:57 AM, John Kramer wrote: Wayne Apologies, I have never seen a P3 in action before, I live too far away from locations that have regular hamfests. Maybe I should go and watch some youtube clips. I just thought the basic architecture in the P3 would be the same as my PX3. But, reading your last two paragraphs, tells me the issue I have with my PX3 also happens on the P3 - In tracking mode averaging info is reset the moment you tune. I find this loss of averaging when tuning, to be totally counter intuitive when trying to home in on a signal. It’s difficult to see a station, and find where you are trying to tune to, when the display loses its averaging. Thanks for the good work at Elecraft, and your quick response 73 John, ZS5J C91J A25J On 31 Jul 2015, at 3:42 PM, Wayne Burdick n...@elecraft.com wrote: John, The P3 and PX3 use entirely different interfaces to the radio. The P3 taps into the K3/K3S 8.2 MHz I.F., while the PX3 uses a baseband I/Q signal from the KX3. While both methods provide the basic benefits of a panadapter, the P3's implementation provides higher performance, using more expensive hardware, and is priced accordingly. The P3 is incredibly smooth in its tuning and presentation, and the unit is widely regarded as one of best panadapters available. Averaging, fixed-tune mode, noise blanking, peak detection and its many other features are all free of any sort of tuning noise or artifacts. If you're in fixed-tune mode, where the VFO/filter cursor moves across the screen, averaging information is preserved. There is no increase in the noise floor, no matter how fast you tune. In tracking mode, where the VFO/filter cursor stays fixed at the center of the screen, averaging information is reset when you tune. This has always been the case, but I'll mention this to our panadapter design staff and see if it might be possible to preserve the averaging data in tracking mode. In any case, I hope you can observe a P3 in action sometime. 73, Wayne N6KR On Jul 31, 2015, at 1:13 AM, John Kramer jkra...@iafrica.com wrote: I think I know what Joe is getting at….and I agree with him, if I understand him correctly. When he refers to “noise floor” he means that he loses averaging when he tunes, resulting in the crazy spectrum display (what Joe refers to as noise). I haven’t seen or used a P3, but I bought my first Elecraft products 3 weeks ago - a KX3 and PX3. If the P3 behaves in the same manner as the PX3 then I can see what Joe is complaining about. Right out the box my PX3 had this frustrating feature of losing averaging the moment you spun the VFO on the KX3. I pointed this out to a local KX3/PX3 owner, and he told me to download the latest firmware which allows you to select “fixed mode” or “fixed track”. I downloaded the firmware. YES, it kinda fixes the problem….you can now tune the radio and KEEP the averaging….but the problem is that now your receive filter goes down the display as you tune. This is better than the previous method, however you now have your receive filter heavily offset from the centre of the display. You might tune down the band, with your RX filter at the bottom of the scale, and you are now unable to see much below, but you can see a huge chunk of the band above you. I bought the KX3 and PX3 for portable ops. My main rigs for the past 5 years are Flex rigs. I have the 5000/3000/1500 and will be getting a 6500 soon as my shack rigs. With these rigs and PSDR, your RX filter REMAINS CENTRED and when you tune around the band, you DON’T LOSE your averaging. This is how I like it to be, and if Elecraft can achieve this in a firmware update, I would be very happy. 73 John, ZS5J __ 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
Re: [Elecraft] P3 vs SDR-IQ
On Fri,7/31/2015 6:08 AM, Joe Word wrote: 1. I am using Tracking mode and have Averaging set at 14. I want to see the SSB pattern smoothly and not like an O'scope. I always slow the pattern down to see clearly the transmitted bandwidth and treble/bass balance. So your primary interest is the quality of the other guy's signal? 2. I do not use Fixed mode, If I am tuning up the band I want to see whats ahead, in Fixed mode you can not. But the scope pattern stays 'clean in Fixed mode, I wish it stayed clean in Tracking mode. When I say clean I mean Averaging does not revert back to 0 while tuning. What you want is not possible -- Averaging is working on the IF signal. We can choose to always center it, or tune across it. When we tune in Tracking Mode, it MUST begin averaging again. Suggestion: If you have not already done so, assign several Span widths and functions to the soft F-keys: What I find useful are 2 kHz, 10 kHz, 20 kHz, 60 kHz, 100 kHz, 200 kHz, Peak (Toggle On/Off), Fixed (Toggle On/Off). Once you've done this, try looking a bit wider as you tune. You may find that you can see things (like stations splattering). The P3 is a VERY versatile instrument. It's worth studying the Operating Manual to see all of the tools available. If you know what you're doing, it's possible to make some high precision, calibrated measurements. 73, Jim K9YC __ 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
Re: [Elecraft] P3 vs SDR-IQ
Phil So….you’re okay using “fixed tune” where your VFO window moves off-centre, and heads off towards the edge of the screen - at this point you can’t see whats ahead of you because you’re near the edge of the pan adapter. If you go any further, you fall off the edge, and it plonks you back in the centre, the waterfall refreshes, and you lose your waterfall history. That’s okay ? Wouldn’t it be better if your VFO window remained centred in the pan adapter, even if you tuned up the band ? so you can see equally whats going on above and below your frequency ? Yes, you can do that in tracking mode…but then we get back to the issue of it resetting and removing the averaging feature. If you haven’t tried an SDR radio that can do both - “fixed and “tracking at the same time, perhaps you should try, and see what you’re missing out on. If the clever guys at Elecraft can come up with a firmware update that will allow you to do both…simultaneously, would you choose to rather have your VFO window jump off the edge every time you get to the end, as in “fixed tune” ? Perhaps they could give us a menu choice of all three options - “fixed tune”, “tracking” and “fixed tracking”. Would you stifle the opportunity of having this menu choice ? I better stop, I’m starting to feel like I’m repeating myself :-) Have a good weekend fella’s. 73 John On 31 Jul 2015, at 5:36 PM, Phil Wheeler w...@socal.rr.com wrote: I agree with Joe. My usage of the P3 and the PX3 is 100% fixed-tune mode, and I find both the P3 and PX3 to work very well for me. They do differ in amplitude scale in A-B comparisons, but this is compensated for by scale adjustments. I've never really found a situation where Tracking mode is helpful, but maybe I'm missing something. 73, Phil W7OX On 7/31/15 8:03 AM, Joe Subich, W4TV wrote: It’s difficult to see a station, and find where you are trying to tune to, when the display loses itsaveraging. As a long time user of the P3, I strenuously disagree with that assessment. 73, ... Joe, W4TV On 2015-07-31 9:57 AM, John Kramer wrote: Wayne Apologies, I have never seen a P3 in action before, I live too far away from locations that have regular hamfests. Maybe I should go and watch some youtube clips. I just thought the basic architecture in the P3 would be the same as my PX3. But, reading your last two paragraphs, tells me the issue I have with my PX3 also happens on the P3 - In tracking mode averaging info is reset the moment you tune. I find this loss of averaging when tuning, to be totally counter intuitive when trying to home in on a signal. It’s difficult to see a station, and find where you are trying to tune to, when the display loses its averaging. Thanks for the good work at Elecraft, and your quick response 73 John, ZS5J C91J A25J __ 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
Re: [Elecraft] P3 vs SDR-IQ
It’s difficult to see a station, and find where you are trying to tune to, when the display loses itsaveraging. As a long time user of the P3, I strenuously disagree with that assessment. 73, ... Joe, W4TV On 2015-07-31 9:57 AM, John Kramer wrote: Wayne Apologies, I have never seen a P3 in action before, I live too far away from locations that have regular hamfests. Maybe I should go and watch some youtube clips. I just thought the basic architecture in the P3 would be the same as my PX3. But, reading your last two paragraphs, tells me the issue I have with my PX3 also happens on the P3 - In tracking mode averaging info is reset the moment you tune. I find this loss of averaging when tuning, to be totally counter intuitive when trying to home in on a signal. It’s difficult to see a station, and find where you are trying to tune to, when the display loses its averaging. Thanks for the good work at Elecraft, and your quick response 73 John, ZS5J C91J A25J On 31 Jul 2015, at 3:42 PM, Wayne Burdick n...@elecraft.com wrote: John, The P3 and PX3 use entirely different interfaces to the radio. The P3 taps into the K3/K3S 8.2 MHz I.F., while the PX3 uses a baseband I/Q signal from the KX3. While both methods provide the basic benefits of a panadapter, the P3's implementation provides higher performance, using more expensive hardware, and is priced accordingly. The P3 is incredibly smooth in its tuning and presentation, and the unit is widely regarded as one of best panadapters available. Averaging, fixed-tune mode, noise blanking, peak detection and its many other features are all free of any sort of tuning noise or artifacts. If you're in fixed-tune mode, where the VFO/filter cursor moves across the screen, averaging information is preserved. There is no increase in the noise floor, no matter how fast you tune. In tracking mode, where the VFO/filter cursor stays fixed at the center of the screen, averaging information is reset when you tune. This has always been the case, but I'll mention this to our panadapter design staff and see if it might be possible to preserve the averaging data in tracking mode. In any case, I hope you can observe a P3 in action sometime. 73, Wayne N6KR On Jul 31, 2015, at 1:13 AM, John Kramer jkra...@iafrica.com wrote: I think I know what Joe is getting at….and I agree with him, if I understand him correctly. When he refers to “noise floor” he means that he loses averaging when he tunes, resulting in the crazy spectrum display (what Joe refers to as noise). I haven’t seen or used a P3, but I bought my first Elecraft products 3 weeks ago - a KX3 and PX3. If the P3 behaves in the same manner as the PX3 then I can see what Joe is complaining about. Right out the box my PX3 had this frustrating feature of losing averaging the moment you spun the VFO on the KX3. I pointed this out to a local KX3/PX3 owner, and he told me to download the latest firmware which allows you to select “fixed mode” or “fixed track”. I downloaded the firmware. YES, it kinda fixes the problem….you can now tune the radio and KEEP the averaging….but the problem is that now your receive filter goes down the display as you tune. This is better than the previous method, however you now have your receive filter heavily offset from the centre of the display. You might tune down the band, with your RX filter at the bottom of the scale, and you are now unable to see much below, but you can see a huge chunk of the band above you. I bought the KX3 and PX3 for portable ops. My main rigs for the past 5 years are Flex rigs. I have the 5000/3000/1500 and will be getting a 6500 soon as my shack rigs. With these rigs and PSDR, your RX filter REMAINS CENTRED and when you tune around the band, you DON’T LOSE your averaging. This is how I like it to be, and if Elecraft can achieve this in a firmware update, I would be very happy. 73 John, ZS5J On 31 Jul 2015, at 2:56 AM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: Hi Joe - Do you have signal averaging turned on to reduce the noise floor? If you do, it has to stop averaging when the freq is being changed while tuning, temporarily raising the noise floor slightly. It then re-starts multi-pass averaging once you stop tuning. This is normal for signal averaging. I run with averaging set =2 or 3 passes. When I tune I barely notice a small increase in the noise floor. If you have a lot of local pulse noise, you might want to turn on the P3s NB function to help. If Averaging is turned off, I can't think of a normal scenario where the noise floor would go up when tuning the band. It certainly does not here. Anyone else have any ideas? 73, Eric /elecraft.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:
Re: [Elecraft] P3 vs SDR-IQ
Wayne Apologies, I have never seen a P3 in action before, I live too far away from locations that have regular hamfests. Maybe I should go and watch some youtube clips. I just thought the basic architecture in the P3 would be the same as my PX3. But, reading your last two paragraphs, tells me the issue I have with my PX3 also happens on the P3 - In tracking mode averaging info is reset the moment you tune. I find this loss of averaging when tuning, to be totally counter intuitive when trying to home in on a signal. It’s difficult to see a station, and find where you are trying to tune to, when the display loses its averaging. Thanks for the good work at Elecraft, and your quick response 73 John, ZS5J C91J A25J On 31 Jul 2015, at 3:42 PM, Wayne Burdick n...@elecraft.com wrote: John, The P3 and PX3 use entirely different interfaces to the radio. The P3 taps into the K3/K3S 8.2 MHz I.F., while the PX3 uses a baseband I/Q signal from the KX3. While both methods provide the basic benefits of a panadapter, the P3's implementation provides higher performance, using more expensive hardware, and is priced accordingly. The P3 is incredibly smooth in its tuning and presentation, and the unit is widely regarded as one of best panadapters available. Averaging, fixed-tune mode, noise blanking, peak detection and its many other features are all free of any sort of tuning noise or artifacts. If you're in fixed-tune mode, where the VFO/filter cursor moves across the screen, averaging information is preserved. There is no increase in the noise floor, no matter how fast you tune. In tracking mode, where the VFO/filter cursor stays fixed at the center of the screen, averaging information is reset when you tune. This has always been the case, but I'll mention this to our panadapter design staff and see if it might be possible to preserve the averaging data in tracking mode. In any case, I hope you can observe a P3 in action sometime. 73, Wayne N6KR On Jul 31, 2015, at 1:13 AM, John Kramer jkra...@iafrica.com wrote: I think I know what Joe is getting at….and I agree with him, if I understand him correctly. When he refers to “noise floor” he means that he loses averaging when he tunes, resulting in the crazy spectrum display (what Joe refers to as noise). I haven’t seen or used a P3, but I bought my first Elecraft products 3 weeks ago - a KX3 and PX3. If the P3 behaves in the same manner as the PX3 then I can see what Joe is complaining about. Right out the box my PX3 had this frustrating feature of losing averaging the moment you spun the VFO on the KX3. I pointed this out to a local KX3/PX3 owner, and he told me to download the latest firmware which allows you to select “fixed mode” or “fixed track”. I downloaded the firmware. YES, it kinda fixes the problem….you can now tune the radio and KEEP the averaging….but the problem is that now your receive filter goes down the display as you tune. This is better than the previous method, however you now have your receive filter heavily offset from the centre of the display. You might tune down the band, with your RX filter at the bottom of the scale, and you are now unable to see much below, but you can see a huge chunk of the band above you. I bought the KX3 and PX3 for portable ops. My main rigs for the past 5 years are Flex rigs. I have the 5000/3000/1500 and will be getting a 6500 soon as my shack rigs. With these rigs and PSDR, your RX filter REMAINS CENTRED and when you tune around the band, you DON’T LOSE your averaging. This is how I like it to be, and if Elecraft can achieve this in a firmware update, I would be very happy. 73 John, ZS5J On 31 Jul 2015, at 2:56 AM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: Hi Joe - Do you have signal averaging turned on to reduce the noise floor? If you do, it has to stop averaging when the freq is being changed while tuning, temporarily raising the noise floor slightly. It then re-starts multi-pass averaging once you stop tuning. This is normal for signal averaging. I run with averaging set =2 or 3 passes. When I tune I barely notice a small increase in the noise floor. If you have a lot of local pulse noise, you might want to turn on the P3s NB function to help. If Averaging is turned off, I can't think of a normal scenario where the noise floor would go up when tuning the band. It certainly does not here. Anyone else have any ideas? 73, Eric /elecraft.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 Message delivered to n...@elecraft.com
Re: [Elecraft] P3 vs SDR-IQ
On Jul 31, 2015, at 9:51 AM, Jim Brown j...@audiosystemsgroup.com wrote: What you want is not possible -- Averaging is working on the IF signal. We can choose to always center it, or tune across it. When we tune in Tracking Mode, it MUST begin averaging again. Not quite impossible. It could keep the averaging for the portion of the spectrum that was displayed, and start new for the newly-displayed portion. Why throw away good data? Or, it could overscan and keep averaging for an invisible area beyond the edge of the display, then roll that into view as needed. Obviously, with either one, if you tune too fast, you get into an area with no averaging data. I’m really surprised that this is a new idea. The first time I used a bandscope, on an IC-756, I found the loss of averaging to be obviously broken with a straightforward fix. wunder K6WRU CM87wj http://observer.wunderwood.org/ (my blog) __ 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
Re: [Elecraft] P3 vs SDR-IQ
Eric Thanks for that info, I would like to try that out - I must have missed that in the manual….unless it was incorporated in the new firmware, and I didn’t see it in the release notes. Thanks for the heads up 73 John, ZS5J On 31 Jul 2015, at 9:20 PM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: One minor note: There are three different P3 and PX3 fix mode tuning defaults you can select in the menu for when you tune past the edge of the display: slide, 1/2 screen and full screen jump. I generally prefer the slide mode as it is less jarring and drags the window incrementally in the direction you are tuning. 73, Eric /elecraft.com/ On 7/31/2015 12:00 PM, d...@lightstream.net wrote: Hello John, Phil So….you’re okay using “fixed tuneâ€� where your VFO window moves off-centre, and heads off towards the edge of the screen - at this point you can’t see whats ahead of you because you’re near the edge of the pan adapter. If you go any further, you fall off the edge, and it plonks you back in the centre, the waterfall refreshes, and you lose your waterfall history. That’s okay ? __ 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 jkra...@iafrica.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 vs SDR-IQ
Hello John, Phil Soâ¦.youâre okay using âfixed tuneâ where your VFO window moves off-centre, and heads off towards the edge of the screen - at this point you canât see whats ahead of you because youâre near the edge of the pan adapter. If you go any further, you fall off the edge, and it plonks you back in the centre, the waterfall refreshes, and you lose your waterfall history. Thatâs okay ? Not only okay, it's what I prefer. As primarily a CW op, I tend to stick to the bottom 30-40 KHz of any given band. In my case, I don't care what's above the top of that range. What I DO care about is the positions of the stations within that 30/40 KHz window. After a few minutes of operation, I get to know who is where, (think of it as a band context) and when a new station appears, it is more easily noticed. As I tune around within that 30 KHz segment, the waterfall history of all signals is preserved. It's all about a stable context. Wouldnât it be better if your VFO window remained centred in the pan adapter, even if you tuned up the band ? so you can see equally whats going on above and below your frequency ? Not for me. Yes, you can do that in tracking modeâ¦but then we get back to the issue of it resetting and removing the averaging feature. If you havenât tried an SDR radio that can do both - âfixed and âtracking at the same time, perhaps you should try, and see what youâre missing out on. Been there -- and still have an SDR1000, FLEX-5000A, FLEX6300, and HPSDR (original TAPR cards) sitting around here. The original PowerSDR's limitation of moving the band around while keeping the signal centered was a continual irritation. Once PowerSDR was re-written and the CTUN function was added, HPSDR and ANAN users were able to tune across a stationary band segment without losing context. I note that Flex Radio chose that method of tuning for SmartSDR and the 6000 series as well. I agree completely with Jim's (K9YC) last paragraph where he states that The P3 is a VERY versatile instrument -- and I've spent considerable time using and operating most of the significant alternatives. If the clever guys at Elecraft can come up with a firmware update that will allow you to do bothâ¦simultaneously, would you choose to rather have your VFO window jump off the edge every time you get to the end, as in âfixed tuneâ ? Yes, I would for the reasons stated above. Perhaps they could give us a menu choice of all three options - âfixed tuneâ, âtrackingâ and âfixed trackingâ. Would you stifle the opportunity of having this menu choice ? More choices and options would be great, though I can appreciate that this would not be a trivial task (that never stops those clever Elecraft guys though) I better stop, Iâm starting to feel like Iâm repeating myself :-) Have a good weekend fellaâs. 73 John 73, Dale WA8SRA __ 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
Re: [Elecraft] P3 vs SDR-IQ
One minor note: There are three different P3 and PX3 fix mode tuning defaults you can select in the menu for when you tune past the edge of the display: slide, 1/2 screen and full screen jump. I generally prefer the slide mode as it is less jarring and drags the window incrementally in the direction you are tuning. 73, Eric /elecraft.com/ On 7/31/2015 12:00 PM, d...@lightstream.net wrote: Hello John, Phil So….you’re okay using “fixed tune� where your VFO window moves off-centre, and heads off towards the edge of the screen - at this point you can’t see whats ahead of you because you’re near the edge of the pan adapter. If you go any further, you fall off the edge, and it plonks you back in the centre, the waterfall refreshes, and you lose your waterfall history. That’s okay ? __ 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
Re: [Elecraft] P3 vs SDR-IQ
I think I know what Joe is getting at….and I agree with him, if I understand him correctly. When he refers to “noise floor” he means that he loses averaging when he tunes, resulting in the crazy spectrum display (what Joe refers to as noise). I haven’t seen or used a P3, but I bought my first Elecraft products 3 weeks ago - a KX3 and PX3. If the P3 behaves in the same manner as the PX3 then I can see what Joe is complaining about. Right out the box my PX3 had this frustrating feature of losing averaging the moment you spun the VFO on the KX3. I pointed this out to a local KX3/PX3 owner, and he told me to download the latest firmware which allows you to select “fixed mode” or “fixed track”. I downloaded the firmware. YES, it kinda fixes the problem….you can now tune the radio and KEEP the averaging….but the problem is that now your receive filter goes down the display as you tune. This is better than the previous method, however you now have your receive filter heavily offset from the centre of the display. You might tune down the band, with your RX filter at the bottom of the scale, and you are now unable to see much below, but you can see a huge chunk of the band above you. I bought the KX3 and PX3 for portable ops. My main rigs for the past 5 years are Flex rigs. I have the 5000/3000/1500 and will be getting a 6500 soon as my shack rigs. With these rigs and PSDR, your RX filter REMAINS CENTRED and when you tune around the band, you DON’T LOSE your averaging. This is how I like it to be, and if Elecraft can achieve this in a firmware update, I would be very happy. 73 John, ZS5J On 31 Jul 2015, at 2:56 AM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: Hi Joe - Do you have signal averaging turned on to reduce the noise floor? If you do, it has to stop averaging when the freq is being changed while tuning, temporarily raising the noise floor slightly. It then re-starts multi-pass averaging once you stop tuning. This is normal for signal averaging. I run with averaging set =2 or 3 passes. When I tune I barely notice a small increase in the noise floor. If you have a lot of local pulse noise, you might want to turn on the P3s NB function to help. If Averaging is turned off, I can't think of a normal scenario where the noise floor would go up when tuning the band. It certainly does not here. Anyone else have any ideas? 73, Eric /elecraft.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 vs SDR-IQ
I would be interested in comments from Elecraft as to why the KX3/P3 differ from the products you list in the way averaging is handled. 73 Stewart G3RXQ On Fri, 31 Jul 2015 10:13:25 +0200, John Kramer wrote: I think I know what Joe is getting atand I agree with him, if I understand him correctly. When he refers to noise floor he means that he loses averaging when he tunes, resulting in the crazy spectrum display (what Joe refers to as noise). I haven't seen or used a P3, but I bought my first Elecraft products 3 weeks ago - a KX3 and PX3. If the P3 behaves in the same manner as the PX3 then I can see what Joe is complaining about. Right out the box my PX3 had this frustrating feature of losing averaging the moment you spun the VFO on the KX3. I pointed this out to a local KX3/PX3 owner, and he told me to download the latest firmware which allows you to select fixed mode or fixed track. I downloaded the firmware. YES, it kinda fixes the problemyou can now tune the radio and KEEP the averagingbut the problem is that now your receive filter goes down the display as you tune. This is better than the previous method, however you now have your receive filter heavily offset from the centre of the display. You might tune down the band, with your RX filter at the bottom of the scale, and you are now unable to see much below, but you can see a huge chunk of the band above you. I bought the KX3 and PX3 for portable ops. My main rigs for the past 5 years are Flex rigs. I have the 5000/3000/1500 and will be getting a 6500 soon as my shack rigs. With these rigs and PSDR, your RX filter REMAINS CENTRED and when you tune around the band, you DON'T LOSE your averaging. This is how I like it to be, and if Elecraft can achieve this in a firmware update, I would be very happy. 73 John, ZS5J On 31 Jul 2015, at 2:56 AM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: Hi Joe - Do you have signal averaging turned on to reduce the noise floor? If you do, it has to stop averaging when the freq is being changed while tuning, temporarily raising the noise floor slightly. It then re-starts multi-pass averaging once you stop tuning. This is normal for signal averaging. I run with averaging set =2 or 3 passes. When I tune I barely notice a small increase in the noise floor. If you have a lot of local pulse noise, you might want to turn on the P3s NB function to help. If Averaging is turned off, I can't think of a normal scenario where the noise floor would go up when tuning the band. It certainly does not here. Anyone else have any ideas? 73, Eric /elecraft.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 Message delivered to stew...@twinwood.me __ 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
Re: [Elecraft] P3 vs SDR-IQ
I have seen a couple in operation but do not personally own a P3. I do use an SDR-IQ running SpectraVue on my K3 and have a second one to use with my new K3S when it gets back from Elecraft rehab:-( To me the P3 display is just too small. Apparently, many agree, hence the VGA adapter. So if you get a P3 you might decide you need a bigger monitor, which puts you back in your dilemma. Why not just add the second monitor to your setup now. All of my software runs on a laptop with a 22-inch external monitor. When I get my station rearranged, I plan to run two big monitors. Wes N7WS On 7/30/2015 5:59 AM, n...@n1ix.com wrote: Has anyone compared the SDR-IQ as a panadapter with the P3? I am using the SDR-IQ now but would like to be able to use my entire computer screen for other displays during contests. Dave N1IX __ 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
Re: [Elecraft] P3 vs SDR-IQ
In my case my use of the panadapter in a contest is for A. Finding a run frequency B. Observing above and below when experiencing interference, plus A above in deciding whether to get a different run frequency. C. Catching all the active frequencies when search and pounce None of these require the pan adapter window on top all the time. Plus I can reduce window size for much of the usage. I *do* have a very large 30 inch 2560x1600 monitor which is great for multiple windows. 73, Guy K2AV On Thursday, July 30, 2015, n...@n1ix.com wrote: Has anyone compared the SDR-IQ as a panadapter with the P3? I am using the SDR-IQ now but would like to be able to use my entire computer screen for other displays during contests. Dave N1IX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net javascript:; This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k2av@gmail.com javascript:; -- Sent via Gmail Mobile on my iPhone __ 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
Re: [Elecraft] P3 vs SDR-IQ
Yes, I have both. The SDR-IQ with SpectraVue remains off 95% of the time while I use the P3 (without SVGA) for everything else. The P3 does not provide a second receiver (but I have the KRX3) or the ability to QSY by clicking a mouse on the screen but I haven't missed that capability. The P3 runs even when the computer is off and does not tie up computer resources or screen real estate like SDR-IQ/SpectraVue. 73, ... Joe, W4TV On 2015-07-30 8:59 AM, n...@n1ix.com wrote: Has anyone compared the SDR-IQ as a panadapter with the P3? I am using the SDR-IQ now but would like to be able to use my entire computer screen for other displays during contests. Dave N1IX __ 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 li...@subich.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 vs SDR-IQ
Hi Joe - Do you have signal averaging turned on to reduce the noise floor? If you do, it has to stop averaging when the freq is being changed while tuning, temporarily raising the noise floor slightly. It then re-starts multi-pass averaging once you stop tuning. This is normal for signal averaging. I run with averaging set =2 or 3 passes. When I tune I barely notice a small increase in the noise floor. If you have a lot of local pulse noise, you might want to turn on the P3s NB function to help. If Averaging is turned off, I can't think of a normal scenario where the noise floor would go up when tuning the band. It certainly does not here. Anyone else have any ideas? 73, Eric /elecraft.com/ On 7/30/2015 5:43 PM, Joe Word wrote: I have been using a P3 with my K3 for the last two weeks and not happy with it's operation. I set the parameters to what I like, the patterns look good, but when I tune the screen fills with noise and you can not see the signals up and down the band. I am told the SVGA option does the same thing. Have owned radios from Apache Labs and Flex and used the SDR-IQ/SpectraVue and LP-Pan panadapters and all of them do not have this problem. On SDR-IQ/SpectraVue the pattern smears some when tuning, but no noise. Joe N9VX -- Has anyone compared the SDR-IQ as a panadapter with the P3? I am using the SDR-IQ now but would like to be able to use my entire computer screen for other displays during contests. Dave N1IX __ 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 eric.swa...@elecraft.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 vs SDR-IQ
Same here. Looks great on this end. You might want to perform an exorcism or something My personal opinion is that the P3/VGA is on par with the Flex 6000 system or the QS1R running SDRMaxV. It is literally MILES ahead of anything that shows on any Icom, Kenwood or Yaesu radio that I've owned. 73, Charlie k3ICH -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Wheeler Sent: Thursday, July 30, 2015 9:06 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] P3 vs SDR-IQ I've seen nothing like that here, Joe, in well over a year of using the K3-P3 combo. Something is amiss in your setup. Be sure to check all cables since that is a common problem. 73, Phil W7OX On 7/30/15 5:43 PM, Joe Word wrote: I have been using a P3 with my K3 for the last two weeks and not happy with it's operation. I set the parameters to what I like, the patterns look good, but when I tune the screen fills with noise and you can not see the signals up and down the band. I am told the SVGA option does the same thing. Have owned radios from Apache Labs and Flex and used the SDR-IQ/SpectraVue and LP-Pan panadapters and all of them do not have this problem. On SDR-IQ/SpectraVue the pattern smears some when tuning, but no noise. Joe N9VX __ 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
Re: [Elecraft] P3 vs SDR-IQ
I've seen nothing like that here, Joe, in well over a year of using the K3-P3 combo. Something is amiss in your setup. Be sure to check all cables since that is a common problem. 73, Phil W7OX On 7/30/15 5:43 PM, Joe Word wrote: I have been using a P3 with my K3 for the last two weeks and not happy with it's operation. I set the parameters to what I like, the patterns look good, but when I tune the screen fills with noise and you can not see the signals up and down the band. I am told the SVGA option does the same thing. Have owned radios from Apache Labs and Flex and used the SDR-IQ/SpectraVue and LP-Pan panadapters and all of them do not have this problem. On SDR-IQ/SpectraVue the pattern smears some when tuning, but no noise. Joe N9VX -- Has anyone compared the SDR-IQ as a panadapter with the P3? I am using the SDR-IQ now but would like to be able to use my entire computer screen for other displays during contests. Dave N1IX __ 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
Re: [Elecraft] P3 vs SDR-IQ
It seems like it would be possible to keep the averages for the old part of the spectrum and only start fresh in the new part. It would look odd for a bit, but it would be great for the portion that was not disrupted. wunder K6WRU CM87wj http://observer.wunderwood.org/ (my blog) On Jul 30, 2015, at 5:56 PM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: Hi Joe - Do you have signal averaging turned on to reduce the noise floor? If you do, it has to stop averaging when the freq is being changed while tuning, temporarily raising the noise floor slightly. It then re-starts multi-pass averaging once you stop tuning. This is normal for signal averaging. I run with averaging set =2 or 3 passes. When I tune I barely notice a small increase in the noise floor. If you have a lot of local pulse noise, you might want to turn on the P3s NB function to help. If Averaging is turned off, I can't think of a normal scenario where the noise floor would go up when tuning the band. It certainly does not here. Anyone else have any ideas? 73, Eric /elecraft.com/ On 7/30/2015 5:43 PM, Joe Word wrote: I have been using a P3 with my K3 for the last two weeks and not happy with it's operation. I set the parameters to what I like, the patterns look good, but when I tune the screen fills with noise and you can not see the signals up and down the band. I am told the SVGA option does the same thing. Have owned radios from Apache Labs and Flex and used the SDR-IQ/SpectraVue and LP-Pan panadapters and all of them do not have this problem. On SDR-IQ/SpectraVue the pattern smears some when tuning, but no noise. Joe N9VX -- Has anyone compared the SDR-IQ as a panadapter with the P3? I am using the SDR-IQ now but would like to be able to use my entire computer screen for other displays during contests. Dave N1IX __ 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 eric.swa...@elecraft.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 Message delivered to wun...@wunderwood.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 vs SDR-IQ
On Thu,7/30/2015 5:43 PM, Joe Word wrote: I have been using a P3 with my K3 for the last two weeks and not happy with it's operation. I set the parameters to what I like, the patterns look good, but when I tune the screen fills with noise and you can not see the signals up and down the band. Study the manual. You need to turn on Fixed Tune Mode -- that's one of the functions you want to assign to one of the F-Keys. That prevents the P3 from re-centering every time you tune, and causes it to work like you want. 73, Jim K9YC __ 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
Re: [Elecraft] P3 vs SDR-IQ
Joe - I use Fixed Tune mode because I just like that display the best - BUT I just checked Tracking Mode and I see about a half S unit noise when I tune - I do not see any in Fixed Tune . UNLESS I look with the K3 on a dummy load so no external antenna noise at all. Its visible there but never with an antenna connected. I will say that it got worse when I put in the KAT3 so I had two front panel selectable antenna ports - I originally started with no antenna tuner in the K3. I suspect if I went in and played with TMP cable dress some more or double checked grounding I might be able to improve that - but its no problem. Also , there is a thing to do that sometimes reduces tuning noise (although tuning noise form the synths may not be the issue here ) but FWIW Here is a paste of what Elecraft suggested (did not make much difference for me) Hank - Please try this for the noise Locate the CONFIG:VCO MD menu entry, and tap the 1 keypad switch until you see SPI 2; this selects the new bus clock rate. (The default setting is SPI 1.) 73 Hank K7HP I have been using a P3 with my K3 for the last two weeks and not happy with it's operation. I set the parameters to what I like, the patterns look good, but when I tune the screen fills with noise and you can not see the signals up and down the band. __ 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
Re: [Elecraft] P3 vs SDR-IQ
Joe, Are you by some chance using your P3 with the FixTrack mode set to Tracking mode rather than Fixed-tune mode? If so, WHY??? ;-) I used PowerSDR with a FLEX-5000A for years and always hated that it ONLY supported what Elecraft refers to as Tracking mode. Eventually, as PowerSDR was completely reworked for HPSDR (and now ANAN) the Fixed-tune mode was implemented and works well though it has a couple of minor bugs. The new FLEX 6000 series SmartSDR uses Fixed-tune mode as well. I don't know if it's even possible to get it to work in tracking mode -- I've never tried, and have no idea why one would want it to. Regarding the P3, I've been using the P3/P3SVGA with my K3 daily for about 3 1/2 years now in Fixed-tune mode, and have *never* seen any change in the noise floor during tuning under any circumstances regardless of the level of averaging used. If you are seeing the noise floor change in any way while tuning in Fixed-tune mode, then something is definitely wrong. Best of luck in getting this resolved. 73, Dale WA8SRA I have been using a P3 with my K3 for the last two weeks and not happy with it's operation. I set the parameters to what I like, the patterns look good, but when I tune the screen fills with noise and you can not see the signals up and down the band. I am told the SVGA option does the same thing. Have owned radios from Apache Labs and Flex and used the SDR-IQ/SpectraVue and LP-Pan panadapters and all of them do not have this problem. On SDR-IQ/SpectraVue the pattern smears some when tuning, but no noise. Joe N9VX -- Has anyone compared the SDR-IQ as a panadapter with the P3? I am using the SDR-IQ now but would like to be able to use my entire computer screen for other displays during contests. Dave N1IX __ 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 d...@lightstream.net __ 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
