Hi All. I am a lurker on the list, so my first post. With the discussion on phase noise, I have been looking around for a way to measure it on an amateur budget. I came across the PN2060A Phase Noise Analyzer, a low-cost, US$480, Chinese analyser that uses cross-correlation of two reference oscillators and then computer analysis. The author answers email and seems keen. It seems pretty good and works the same way as modern phase noise analysers. Has anyone tried it? There is a discussion on eevblog about it. Regards Drew VK4ZXI https://www.qsl.net/bg6khc/ https://www.eevblog.com/forum/testgear/phase-noise-analyzer-and-phase-noise-measurement/ phase noise analyzer and phase noise measurement - Page 1<https://www.eevblog.com/forum/testgear/phase-noise-analyzer-and-phase-noise-measurement/> phase noise analyzer and phase noise measurement - Page 1 www.eevblog.com

Hi Based on what I can see, this is very much “early days” for this device. 40 minutes to get to -170 dbc and no real ADEV info both would be gotcha’s to me. That all could change / might change / may have already changed. I’d wait a couple months and see how it looks after they spend a bit more time working things out. Bob > On Jul 11, 2023, at 3:43 AM, drew wollin via time-nuts <time-nuts@lists.febo.com> wrote: > > Hi All. > > I am a lurker on the list, so my first post. > > With the discussion on phase noise, I have been looking around for a way to measure it on an amateur budget. > > I came across the PN2060A Phase Noise Analyzer, a low-cost, US$480, Chinese analyser that uses cross-correlation of two reference oscillators and then computer analysis. The author answers email and seems keen. > > It seems pretty good and works the same way as modern phase noise analysers. > > Has anyone tried it? > > There is a discussion on eevblog about it. > > Regards Drew VK4ZXI > > https://www.qsl.net/bg6khc/ > > https://www.eevblog.com/forum/testgear/phase-noise-analyzer-and-phase-noise-measurement/ > phase noise analyzer and phase noise measurement - Page 1<https://www.eevblog.com/forum/testgear/phase-noise-analyzer-and-phase-noise-measurement/> > phase noise analyzer and phase noise measurement - Page 1 > www.eevblog.com > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

-170dbc at what offset from the carrier in 40 minutes? ________________________________ From: Bob Camp via time-nuts <time-nuts@lists.febo.com> Sent: Wednesday, July 12, 2023 12:47:09 PM To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com> Cc: drew wollin <drew_wollin@hotmail.com>; Bob Camp <kb8tq@n1k.org> Subject: [time-nuts] Re: PN2060A Phase Noise Analyzer Hi Based on what I can see, this is very much “early days” for this device. 40 minutes to get to -170 dbc and no real ADEV info both would be gotcha’s to me. That all could change / might change / may have already changed. I’d wait a couple months and see how it looks after they spend a bit more time working things out. Bob > On Jul 11, 2023, at 3:43 AM, drew wollin via time-nuts <time-nuts@lists.febo.com> wrote: > > Hi All. > > I am a lurker on the list, so my first post. > > With the discussion on phase noise, I have been looking around for a way to measure it on an amateur budget. > > I came across the PN2060A Phase Noise Analyzer, a low-cost, US$480, Chinese analyser that uses cross-correlation of two reference oscillators and then computer analysis. The author answers email and seems keen. > > It seems pretty good and works the same way as modern phase noise analysers. > > Has anyone tried it? > > There is a discussion on eevblog about it. > > Regards Drew VK4ZXI > > https://www.qsl.net/bg6khc/ > > https://www.eevblog.com/forum/testgear/phase-noise-analyzer-and-phase-noise-measurement/ > phase noise analyzer and phase noise measurement - Page 1<https://www.eevblog.com/forum/testgear/phase-noise-analyzer-and-phase-noise-measurement/> > phase noise analyzer and phase noise measurement - Page 1 > www.eevblog.com<http://www.eevblog.com> > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

 On Friday, July 14, 2023 at 03:05:51 PM CDT, Bob Camp via time-nuts <time-nuts@lists.febo.com> wrote:  

Given the quality of the nanoVNA H4, I'm buying a tinyFPA as soon as they are available. You can flash an nanoVNA H4 into a tiny PFA, but then you lose use of the VNA until you flash it back. On Friday, July 14, 2023 at 03:05:51 PM CDT, Bob Camp via time-nuts <time-nuts@lists.febo.com> wrote: Hi Based on what I can see, this is very much “early days” for this device. 40 minutes to get to -170 dbc and no real ADEV info both would be gotcha’s to me. That all could change / might change / may have already changed. I’d wait a couple months and see how it looks after they spend a bit more time working things out. Bob > On Jul 11, 2023, at 3:43 AM, drew wollin via time-nuts <time-nuts@lists.febo.com> wrote: > > Hi All. > > I am a lurker on the list, so my first post. > > With the discussion on phase noise, I have been looking around for a way to measure it on an amateur budget. > > I came across the PN2060A Phase Noise Analyzer, a low-cost, US$480, Chinese analyser that uses cross-correlation of two reference oscillators and then computer analysis. The author answers email and seems keen. > > It seems pretty good and works the same way as modern phase noise analysers. > > Has anyone tried it? > > There is a discussion on eevblog about it. > > Regards Drew VK4ZXI > > https://www.qsl.net/bg6khc/ > > https://www.eevblog.com/forum/testgear/phase-noise-analyzer-and-phase-noise-measurement/ > phase noise analyzer and phase noise measurement - Page 1<https://www.eevblog.com/forum/testgear/phase-noise-analyzer-and-phase-noise-measurement/> > phase noise analyzer and phase noise measurement - Page 1 > www.eevblog.com > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

Hi The data I saw suggested that you hit -170 at 100 hz and -180 further removed in 40 minutes. Close in, they got to around -125 dbc at 1 Hz. All of this is averaged data with (I assume) the same signal into both ports. The lumps / bumps and spikes came in well above these levels. Bob > On Jul 14, 2023, at 5:59 PM, Ed Marciniak <ed@nb0m.org> wrote: > > -170dbc at what offset from the carrier in 40 minutes? > From: Bob Camp via time-nuts <time-nuts@lists.febo.com> > Sent: Wednesday, July 12, 2023 12:47:09 PM > To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com> > Cc: drew wollin <drew_wollin@hotmail.com>; Bob Camp <kb8tq@n1k.org> > Subject: [time-nuts] Re: PN2060A Phase Noise Analyzer > > Hi > > Based on what I can see, this is very much “early days” for this device. 40 minutes to get > to -170 dbc and no real ADEV info both would be gotcha’s to me. That all could change / > might change / may have already changed. > > I’d wait a couple months and see how it looks after they spend a bit more time working > things out. > > Bob > > > On Jul 11, 2023, at 3:43 AM, drew wollin via time-nuts <time-nuts@lists.febo.com> wrote: > > > > Hi All. > > > > I am a lurker on the list, so my first post. > > > > With the discussion on phase noise, I have been looking around for a way to measure it on an amateur budget. > > > > I came across the PN2060A Phase Noise Analyzer, a low-cost, US$480, Chinese analyser that uses cross-correlation of two reference oscillators and then computer analysis. The author answers email and seems keen. > > > > It seems pretty good and works the same way as modern phase noise analysers. > > > > Has anyone tried it? > > > > There is a discussion on eevblog about it. > > > > Regards Drew VK4ZXI > > > > https://www.qsl.net/bg6khc/ > > > > https://www.eevblog.com/forum/testgear/phase-noise-analyzer-and-phase-noise-measurement/ > > phase noise analyzer and phase noise measurement - Page 1<https://www.eevblog.com/forum/testgear/phase-noise-analyzer-and-phase-noise-measurement/> > > phase noise analyzer and phase noise measurement - Page 1 > > www.eevblog.com <http://www.eevblog.com/> > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com