So… using nasabare for 7/2 didn’t help. The ISS was still about 10kHz above where SatPC32 was tuning the IC 9700. Had to enable the VFO and manually tune up to it and then follow it back down the band. Also still getting good signals after supposed LOS, down to -5 to -8 degrees. Had SatSat in front of me on the iPad watching the ISS az, el, range, altitude and Doppler at 100MHz, AOS/LOS times. It was all very close to what SatPC32 was displaying. Yet SatPC32 did not put the rig where the ISS links were. Only seems to affect ISS as far as I can tell. I really don’t get it. Ray
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If the keps are right, the only things left are your QTH location set in SatPC32 and your computer time.
You might compare your predictions with https://www.amsat.org/track/index.php. I'm not sure if that uses your computer clock or an external clock but it is easy to check your own clock.
On Fri, Jul 2, 2021 at 10:40 AM crohtun via AMSAT-BB amsat-bb@amsat.org wrote:
So… using nasabare for 7/2 didn’t help. The ISS was still about 10kHz above where SatPC32 was tuning the IC 9700. Had to enable the VFO and manually tune up to it and then follow it back down the band. Also still getting good signals after supposed LOS, down to -5 to -8 degrees. Had SatSat in front of me on the iPad watching the ISS az, el, range, altitude and Doppler at 100MHz, AOS/LOS times. It was all very close to what SatPC32 was displaying. Yet SatPC32 did not put the rig where the ISS links were. Only seems to affect ISS as far as I can tell. I really don’t get it.
Ray
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I would double check your computer's time to make sure it is correctly synced to the network. Next, I would look at your station altitude in the observer settings. Remember that this is the elevation of your station above mean sea level in meters, not in feet! -- Mark D. Johns, KØJM AMSAT Ambassador & News Service Editor Brooklyn Park, MN USA EN35hd ----------------------------------------------- "Heaven goes by favor; if it went by merit, you would stay out and your dog would go in." ---Mark Twain
On Fri, Jul 2, 2021 at 9:40 AM crohtun via AMSAT-BB amsat-bb@amsat.org wrote:
So… using nasabare for 7/2 didn’t help. The ISS was still about 10kHz above where SatPC32 was tuning the IC 9700. Had to enable the VFO and manually tune up to it and then follow it back down the band. Also still getting good signals after supposed LOS, down to -5 to -8 degrees. Had SatSat in front of me on the iPad watching the ISS az, el, range, altitude and Doppler at 100MHz, AOS/LOS times. It was all very close to what SatPC32 was displaying. Yet SatPC32 did not put the rig where the ISS links were. Only seems to affect ISS as far as I can tell. I really don’t get it.
Ray
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Elevation (in mters), lat, long all correct. Meinberg NTP running, offset from UTC 3.4 msec. See KB2M’s post. There appears to be a file error.
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On Friday, July 2, 2021, 10:58 AM, Mark Johns, K0JM k0jm.mark@gmail.com wrote:
I would double check your computer's time to make sure it is correctly synced to the network. Next, I would look at your station altitude in the observer settings. Remember that this is the elevation of your station above mean sea level in meters, not in feet! -- Mark D. Johns, KØJM AMSAT Ambassador & News Service Editor Brooklyn Park, MN USA EN35hd -----------------------------------------------"Heaven goes by favor; if it went by merit, you would stay out and your dog would go in." ---Mark Twain
On Fri, Jul 2, 2021 at 9:40 AM crohtun via AMSAT-BB amsat-bb@amsat.org wrote:
So… using nasabare for 7/2 didn’t help. The ISS was still about 10kHz above where SatPC32 was tuning the IC 9700. Had to enable the VFO and manually tune up to it and then follow it back down the band. Also still getting good signals after supposed LOS, down to -5 to -8 degrees. Had SatSat in front of me on the iPad watching the ISS az, el, range, altitude and Doppler at 100MHz, AOS/LOS times. It was all very close to what SatPC32 was displaying. Yet SatPC32 did not put the rig where the ISS links were. Only seems to affect ISS as far as I can tell. I really don’t get it. Ray
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Hi Ray, I'm now having the same problem. I found the keps for the ISS in amateur.txt to be what I think is right. When I copied the keps for the ISS into my nasa.all file the ISS AOS was changed to 4 minutes later, so I think their correct. I don't have another pass to check this until 14 hours from now. Plug these in and try....
ISS (ZARYA) 1 25544U 98067A 21182.75718579 .00001475 00000-0 35189-4 0 9990 2 25544 51.6449 270.6712 0002215 128.1764 13.7831 15.48754489290857
73 Jeff kb2m
On 7/2/2021 10:39 AM, crohtun via AMSAT-BB wrote:
So… using nasabare for 7/2 didn’t help. The ISS was still about 10kHz above where SatPC32 was tuning the IC 9700. Had to enable the VFO and manually tune up to it and then follow it back down the band. Also still getting good signals after supposed LOS, down to -5 to -8 degrees. Had SatSat in front of me on the iPad watching the ISS az, el, range, altitude and Doppler at 100MHz, AOS/LOS times. It was all very close to what SatPC32 was displaying. Yet SatPC32 did not put the rig where the ISS links were. Only seems to affect ISS as far as I can tell. I really don’t get it.
Ray
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Hmm...those keps are just a couple of hours newer than the ones in both nasa.all and nasabare.txt. I don't see any mention of an ISS manuever yesterday...
73,
Paul, N8HM
On Fri, Jul 2, 2021 at 10:59 AM jeff griffin kb2mjeff@att.net wrote:
Hi Ray, I'm now having the same problem. I found the keps for the ISS in amateur.txt to be what I think is right. When I copied the keps for the ISS into my nasa.all file the ISS AOS was changed to 4 minutes later, so I think their correct. I don't have another pass to check this until 14 hours from now. Plug these in and try....
ISS (ZARYA) 1 25544U 98067A 21182.75718579 .00001475 00000-0 35189-4 0 9990 2 25544 51.6449 270.6712 0002215 128.1764 13.7831 15.48754489290857
73 Jeff kb2m On 7/2/2021 10:39 AM, crohtun via AMSAT-BB wrote:
So… using nasabare for 7/2 didn’t help. The ISS was still about 10kHz above where SatPC32 was tuning the IC 9700. Had to enable the VFO and manually tune up to it and then follow it back down the band. Also still getting good signals after supposed LOS, down to -5 to -8 degrees. Had SatSat in front of me on the iPad watching the ISS az, el, range, altitude and Doppler at 100MHz, AOS/LOS times. It was all very close to what SatPC32 was displaying. Yet SatPC32 did not put the rig where the ISS links were. Only seems to affect ISS as far as I can tell. I really don’t get it.
Ray
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The keps I supplied here also match whats in ISS Detector Android APP...
73 Jeff kb2m
On 7/2/2021 11:20 AM, Paul Stoetzer wrote:
Hmm...those keps are just a couple of hours newer than the ones in both nasa.all and nasabare.txt. I don't see any mention of an ISS manuever yesterday...
73,
Paul, N8HM
On Fri, Jul 2, 2021 at 10:59 AM jeff griffin <kb2mjeff@att.net mailto:kb2mjeff@att.net> wrote:
Hi Ray, I'm now having the same problem. I found the keps for the ISS in amateur.txt to be what I think is right. When I copied the keps for the ISS into my nasa.all file the ISS AOS was changed to 4 minutes later, so I think their correct. I don't have another pass to check this until 14 hours from now. Plug these in and try.... ISS (ZARYA) 1 25544U 98067A 21182.75718579 .00001475 00000-0 35189-4 0 9990 2 25544 51.6449 270.6712 0002215 128.1764 13.7831 15.48754489290857 73 Jeff kb2m On 7/2/2021 10:39 AM, crohtun via AMSAT-BB wrote:So… using nasabare for 7/2 didn’t help. The ISS was still about 10kHz above where SatPC32 was tuning the IC 9700. Had to enable the VFO and manually tune up to it and then follow it back down the band. Also still getting good signals after supposed LOS, down to -5 to -8 degrees. Had SatSat in front of me on the iPad watching the ISS az, el, range, altitude and Doppler at 100MHz, AOS/LOS times. It was all very close to what SatPC32 was displaying. Yet SatPC32 did not put the rig where the ISS links were. Only seems to affect ISS as far as I can tell. I really don’t get it. Ray Sent from the all new AOL app for iOS <https://apps.apple.com/us/app/aol-news-email-weather-video/id646100661> ----------------------------------------------------------- Sent via AMSAT-BB(a)amsat.org <http://amsat.org>. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available athttps://www.amsat.org/about-amsat/ <https://www.amsat.org/about-amsat/> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org <https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org> To unsubscribe send an email to amsat-bb-leave(a)amsat.org <http://amsat.org> Manage all of your AMSAT-NA mailing list preferences athttps://mailman.amsat.org <https://mailman.amsat.org>----------------------------------------------------------- Sent via AMSAT-BB(a)amsat.org <http://amsat.org>. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ <https://www.amsat.org/about-amsat/> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org <https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org> To unsubscribe send an email to amsat-bb-leave(a)amsat.org <http://amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org <https://mailman.amsat.org>
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Thanks Jeff ... I applied your updated keps - working well.
On 7/2/2021 10:49 AM, jeff griffin wrote:
The keps I supplied here also match whats in ISS Detector Android APP...
ISS (ZARYA) 1 25544U 98067A 21182.75718579 .00001475 00000-0 35189-4 0 9990 2 25544 51.6449 270.6712 0002215 128.1764 13.7831 15.48754489290857
OK when this thread first came out I was reminded of an experience I had on Saturday setting up for field day. There was an ISS pass about 45 minutes before The start of the contest. I was still setting up and had no intent on working the ISS crossband repeater, but tuned in just to see you how much noise there was. I was not using Doppler correction just manual control of the FT 847. I had started my radio about 437.809 figuring that was the beginning of the pass with plus Doppler. I found that I had to tune up about three or 4 kHz to get the strongest signal on my receiver. I thought that was odd but had other things to do and so blew it off. I then saw this thread start about somebody commenting that they were about three or 4 kHz off and that got me following it a little closer.
Oh yes with the international space station, running reasonably current orbital elements is a very important thing to do for timing of the pass. In my case though since I wasn’t driving the radio with Software, it was just a surprise to me that they were that far off.
So then has anybody experienced what I experienced? Maybe I have a radio issue I don’t know. But I just thought it was strange.
73, N5HYP Tom
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On Jul 2, 2021, at 10:21, Paul Stoetzer n8hm@arrl.net wrote:
Hmm...those keps are just a couple of hours newer than the ones in both nasa.all and nasabare.txt. I don't see any mention of an ISS manuever yesterday...
73,
Paul, N8HM
On Fri, Jul 2, 2021 at 10:59 AM jeff griffin kb2mjeff@att.net wrote: Hi Ray, I'm now having the same problem. I found the keps for the ISS in amateur.txt to be what I think is right. When I copied the keps for the ISS into my nasa.all file the ISS AOS was changed to 4 minutes later, so I think their correct. I don't have another pass to check this until 14 hours from now. Plug these in and try....
ISS (ZARYA) 1 25544U 98067A 21182.75718579 .00001475 00000-0 35189-4 0 9990 2 25544 51.6449 270.6712 0002215 128.1764 13.7831 15.48754489290857
73 Jeff kb2m
On 7/2/2021 10:39 AM, crohtun via AMSAT-BB wrote:
So… using nasabare for 7/2 didn’t help. The ISS was still about 10kHz above where SatPC32 was tuning the IC 9700. Had to enable the VFO and manually tune up to it and then follow it back down the band. Also still getting good signals after supposed LOS, down to -5 to -8 degrees. Had SatSat in front of me on the iPad watching the ISS az, el, range, altitude and Doppler at 100MHz, AOS/LOS times. It was all very close to what SatPC32 was displaying. Yet SatPC32 did not put the rig where the ISS links were. Only seems to affect ISS as far as I can tell. I really don’t get it.
Ray
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I have notice the same thing here, but use the amateur.txt instead nasa.all and nasabare.txt, that improves a lot, maybe is just that the source is not updated as often as the amateur.txt
That being said, double check time sync and qth location just in case.
Try it and let us know if you notice the same improvement as I.
73
Bert
XE1HG / DL80
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________________________________ From: crohtun via AMSAT-BB amsat-bb@amsat.org Sent: Friday, July 2, 2021 9:39:55 AM To: AMSAT BB amsat-bb@amsat.org Subject: [AMSAT-BB] ISS Dopplers Still Off
So… using nasabare for 7/2 didn’t help. The ISS was still about 10kHz above where SatPC32 was tuning the IC 9700. Had to enable the VFO and manually tune up to it and then follow it back down the band. Also still getting good signals after supposed LOS, down to -5 to -8 degrees. Had SatSat in front of me on the iPad watching the ISS az, el, range, altitude and Doppler at 100MHz, AOS/LOS times. It was all very close to what SatPC32 was displaying. Yet SatPC32 did not put the rig where the ISS links were. Only seems to affect ISS as far as I can tell. I really don’t get it.
Ray
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participants (8)
-
Burns Fisher -
crohtun -
Humberto González -
jeff griffin -
JoAnne K9JKM -
Mark Johns, K0JM -
Paul Stoetzer -
Tom Schuessler