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<div class="moz-cite-prefix">Would that be the Falconsat-3 ID
30776? Or a different Falconsat?<br>
<br>
Lynn (D) - KJ4ERJ - Operator of SATSRV<br>
<br>
On 10/2/2017 11:01 AM, Robert Bruninga wrote:<br>
</div>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Looks
like Falconsat passes (4) are coming over Northern mid
latitudes from about 10 AM to around 1600 local Daylight
time.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Just
listened today, and it has a solid continuous 9600 baud
downlink from horizon to horizon. If you are running WISP
then your file system will fill with the data files.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">But
just running my TM-D710G in APRS mode, it received dozens of
UI packets. I could see the callsigns, but since they were
not APRS protocol, they just blinked with the ?? for
unknown. But my APRS packet was digipeated a few times. If
there had been other APRS users on the uplink, then I would
have seen them.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">BUT
PLEASE. RECOGNIZE that APRS UI packets are NOT what this
satellite was designed for. So test your system, understand
how it works, be ready if you need to send emergency packets
or make some contacts, but PLEASE do not just beacon
randomly. It screws up the FILE SERVER protocol for those
other users.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">And
NEVER beacon unattended.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">And
we need some IGATES to be monitoring and feeding the
APRS-IS, BUT ONLY APRS PACKETS. The APRS-IS feed cannot
possibly handle full stream continuous 9600 baud downlink.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">How
are we going to do this?</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Thanks</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Bob,
WB4aPR</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">
Robert Bruninga [mailto:<a href="mailto:bruninga@usna.edu"
moz-do-not-send="true">bruninga@usna.edu</a>] <br>
<b>Sent:</b> Sunday, October 01, 2017 1:43 PM<br>
<b>To:</b> TAPR APRS Mailing List<br>
<b>Cc:</b> Robert Bruninga<br>
<b>Subject:</b> Another APRS satellite (9600 baud)</span></p>
<p class="MsoNormal"> </p>
<div>
<div>
<p class="MsoNormal">The Airforce Academy turned over its
Falconsat satelliite to Hams and I had not realized it
supports APRS digipeating. But at 9600 baud and cross
band.</p>
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<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">This is a great bird to get some
experience on operating 9600 baud.</p>
<div>
<p class="MsoNormal"><a
href="https://www.amsat.org/falconsat-3/"
target="_blank" moz-do-not-send="true">https://www.amsat.org/falconsat-3/</a></p>
</div>
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<p class="MsoNormal"> </p>
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<div>
<p class="MsoNormal">435.103 MHz down and 145.840 up DIGI
call of PFS3-1. While of course setting 5 memories to
chase the Doppler the full 20 KHz during the pass.</p>
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<div>
<p class="MsoNormal"> </p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt">I guess we
need some APRS IGates to collect packets on the downlink.
Of course this is not easy because the doppler shifts
through 5 channels at 5 KHz steps due to DOppler. But if
we have enough passive receivers all over the USA Then
one of them will always be in the passband for at least
some packets.</p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt">Just tune
in 435.110 which is 7 KHz high and you will at least hear
the start of the pass and if you are in the shack, you can
then follow it down.</p>
</div>
<p class="MsoNormal">Bob, WB4APR</p>
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