[aprssig] ARISS, PCSAT-1 and ANDE, and GO32 on APRS packet

Phillip Pacier ad6nh at arrl.net
Mon Sep 10 13:21:04 CDT 2007

Are we still capturing non-APRS format telemetry as well, or is that
dormant for the time being?

Phil - AD6NH

Robert Bruninga
> During the last two ISS passes (1430z and 1600z), The ARISS
> system was enabled for APRS digipeating on 145.825 using the
> path of "VIA ARISS".
> This is good news, since PCSAT-1 should enter a FULL SUN
> OPERATING PERIOD later this week.  If so, then we may have a
> period of a few weeks here when we will have THREE APRS
> satellites flying in constellation. ISS, PCSAT-1, and ANDE.
> This will assure over 18 passes per day.  And since they all
> respond to the same path "VIA ARISS" then which satellite is in
> view is transparent to the user.  Just communicate!  Of course,
> two-hop paths via ARISS,ARISS might also be possible..
> IGATES on 145.825!
> In order for the global APRS internet system to capture all
> these packets, we do need volunteer ground stations to place an
> IGATE to monitor all packets on 145.825 MHz downlinks.  In many
> cases, a simple OMNI antenna connected to APRS is all that is
> needed.
> See successes on http://www.ariss.net or http://pcsat.aprs.org
> P.S.  We are also working on getting GO-32 enabled for APRS
> operation at 9600 baud.  But since it uses different uplink and
> downlink fequencies, it cannot be used for
> multiple-APRS-satellite operations.
> Bruninga, WB4APR
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