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[aprssig] Joint PCSAT2 <=> PCsat operations

Robert Bruninga bruninga at usna.edu
Wed Nov 23 17:03:45 UTC 2005


Today PCsat eclipses dropped to 6 minutes and
we were able to recover her to OPS NORMAL.
We left her charging for a few orbits, but by
tonight, she will be in full sun for the next few
weeks and fully operational up/dn on 145.825.
using the same path as ARISS for convenience:
UNPROTO APRS VIA ARISS.

In the USA, you might also see the PCSAT-11
backup transponder on your mobile in quiet areas 
with its downlink on 144.39.  Its uplink is reserved
for special experiments or travelers (anyone?)

Please remember the rules for PCsat as published
in the User Service Agreement, and that is "no 
unattended beacons via PCsat" to conserve power 
for those people trying live contacts.

In a week or so, we may be able to also shift 
PCSAT2 to the same 145.825 frequency
for joint-ops experiments.  We have to work
around the ARISS school contacts of which there 
are several.

Even without switching, the PCSAT2 packet uplink
is on 145.825 always, so a two hop path via
PCsat first and then to PCSAT2 is always possible
and in fact slightly better odds due to the lack of
collisions between the two satellite outputs.
(though it takes a UHF beam to hear PCSAT2
usually).

de Wb4APR, Bob







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