[amsat-bb] JY1-sat dashboard

[Paul Stoetzer]

"Also, the signal has been considerably weaker and with a lot more QSB than
I see on either AO-73 or EO-88."

JY1-SAT is currently running in safe mode with only 30 mW of power
out, so it's 10 dB weaker than AO-73 (currently at about 300 mW in
full sun) and about 13 dB weaker than EO-88 (in sunlight - running 500
mW).

73,

Paul, N8HM
On Fri, Dec 7, 2018 at 3:45 PM Hasan al-Basri <hbasri.schiers6 at gmail.com> wrote:
>
> Hi Kevin,
> I did a TLM run with JY1SAT about 90 min ago and left the decoder running
> (as I do with all my TLM programs)
> AOS in about 9 minutes here, and assuming the TLM is on, I'll let you know
> if JY1 Dashboard takes off or not.
>
> 17:19z , JY1SAT came right up, and it Dashboard is locked and decoding
> fine. I have about 11 frames and am at 9 deg EL.
>
> Just for comparison purposes, I have my AutoTune range enabled, and set for
> 0 and 3500
> 73, N0AN
>
> Also, the signal has been considerably weaker and with a lot more QSB than
> I see on either AO-73 or EO-88. I'm seeing a LOT of polarization fading as
> I switch back and forth between a RHC Eggbeater and an X200 Colllnear. Even
> at 40 deg EL, seeing polarization fading on the RHC EB.
>
> Also noted, doppler tracking is not as "perfect" as it i s on AO-73 and
> EO-88. I assume this is due to some slight error in the TLE's
>
> I also just adjusted my tracking Auto-Tune high end to 6000, as it lost
> some decodes with the high end set to 3500
>
> Hasan
>
>
> On Fri, Dec 7, 2018 at 9:39 AM christy hunter <cchunter3 at mindspring.com>
> wrote:
>
> > Kevin,
> >
> > Yes,  I was also running simultaneously the telem software latest version.
> >
> > 73 Christy KB6LTY
> >
> >
> >
> > *Kevin* wa7fwf at gmail.com
> > <mailto:amsat-bb%40amsat.org
> > ?Subject=Re%3A%20%5Bamsat-bb%5D%20JY1-sat%20dashboard&In-Reply-To=%3Ce3eb2ee8-a2ef-097a-c556-1ff77b689b2f%
> > 40gmail.com%3E>
> > /Fri Dec 7 07:41:06 UTC 2018/
> >
> >   * Previous message: [amsat-bb] Rocket Lab Launch for NASA ElaNa-19 due
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> >
> >
> > ------------------------------------------------------------------------
> >
> > Hi All,
> >      Is anyone else noticing any  issues with the JY1-sat dashboard? I
> > can start it with the sat present and it will instantly lock and track,
> > next pass it will ignore the signal, kill it and restart it and bam
> > instant lock.
> >
> >    73 Kevin WA7FWF
> >
> > ------------------------------------------------------------------------
> >
> >
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> _______________________________________________
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