P3 vs SDR-IQ
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Thanks to all that replied to my post.
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. 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. John, ZS5J please note, on the Flex 6500 (and all 6000 series) that used SmartSDR software, the panadapter is in Fixed Mode (to use a Elecraft term) and can not be changed. This is the reason I no longer own a Flex 6000 series radio. I have tried the various Auto Adjust parameters in Fixed Mode, but they do not resolve my concern. Joe N9VX ------------------------------------------------------- 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:[hidden email] <[hidden email]> This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] <[hidden email]> This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] - Previous message <http://www.mail-archive.com/elecraft@.../msg183821.html> - View by thread <http://www.mail-archive.com/elecraft@.../index.html#183822> - View by date <http://www.mail-archive.com/elecraft@.../maillist.html#183822> - Next message <http://www.mail-archive.com/elecraft@.../msg183823.html> - [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183784.html> n1ix - - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183788.html> Wes (N7WS) - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183809.html> Guy Olinger K2AV - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183817.html> Joe Subich, W4TV - [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../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@.../msg183823.html> Walter Underwood - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183838.html> John Kramer - - Re: [Elecraft] P3 vs SDR-I... <http://www.mail-archive.com/elecraft@.../msg183842.html> Stewart - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183824.html> Phil Wheeler - - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183826.html> Charlie T, K3ICH - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183827.html> Hank P - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183828.html> Jim Brown - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183829.html> [hidden email] 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@.../> - elecraft - about the list <http://www.mail-archive.com/elecraft@.../info.html> - Expand <http://www.mail-archive.com/search?l=elecraft@...&q=subject:%22Re%5C%3A+%5C%5BElecraft%5C%5D+P3+vs+SDR%5C-IQ%22&o=newest&f=1> - Previous message <http://www.mail-archive.com/elecraft@.../msg183821.html> - Next message <http://www.mail-archive.com/elecraft@.../msg183823.html> [image: elecraft] <http://www.mail-archive.com/elecraft@.../msg183822.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 Message delivered to [hidden email] |
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Joe
That is exactly the problem I have with the PX3 - I like my receive filter to be centred, so I can always see whats going on up the band and down the band. For that to happen on my PX3, I need to be in tracking mode. But the moment you swing the VFO, the display loses its averaging, and goes wild. When this happens you can no longer see where the station is that you were wanting to tune up to. So I end up spinning the VFO…. waiting for averaging to resume so I can find the station I want to tune to…and then spin the VFO again. I can only operate with averaging on all the time. The “fixed mode” sort of/kind of fixes this, but the receive filter no longer stays centred in the middle of the display in this mode. 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 On 31 Jul 2015, at 3:08 PM, Joe Word <[hidden email]> wrote: Thanks to all that replied to my post. 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. 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. John, ZS5J please note, on the Flex 6500 (and all 6000 series) that used SmartSDR software, the panadapter is in Fixed Mode (to use a Elecraft term) and can not be changed. This is the reason I no longer own a Flex 6000 series radio. I have tried the various Auto Adjust parameters in Fixed Mode, but they do not resolve my concern. Joe N9VX ------------------------------------------------------- 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:[hidden email] <[hidden email]> This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] <[hidden email]> This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] - Previous message <http://www.mail-archive.com/elecraft@.../msg183821.html> - View by thread <http://www.mail-archive.com/elecraft@.../index.html#183822> - View by date <http://www.mail-archive.com/elecraft@.../maillist.html#183822> - Next message <http://www.mail-archive.com/elecraft@.../msg183823.html> - [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183784.html> n1ix - - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183788.html> Wes (N7WS) - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183809.html> Guy Olinger K2AV - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183817.html> Joe Subich, W4TV - [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../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@.../msg183823.html> Walter Underwood - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183838.html> John Kramer - - Re: [Elecraft] P3 vs SDR-I... <http://www.mail-archive.com/elecraft@.../msg183842.html> Stewart - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183824.html> Phil Wheeler - - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183826.html> Charlie T, K3ICH - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183827.html> Hank P - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183828.html> Jim Brown - Re: [Elecraft] P3 vs SDR-IQ <http://www.mail-archive.com/elecraft@.../msg183829.html> [hidden email] 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@.../> - elecraft - about the list <http://www.mail-archive.com/elecraft@.../info.html> - Expand <http://www.mail-archive.com/search?l=elecraft@...&q=subject:%22Re%5C%3A+%5C%5BElecraft%5C%5D+P3+vs+SDR%5C-IQ%22&o=newest&f=1> - Previous message <http://www.mail-archive.com/elecraft@.../msg183821.html> - Next message <http://www.mail-archive.com/elecraft@.../msg183823.html> [image: elecraft] <http://www.mail-archive.com/elecraft@.../msg183822.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 Message delivered to [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] |
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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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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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, [hidden email] 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Joe Word-2
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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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