[amsat-bb] AO-16 telemetry 3 Oct 2010

Mark L. Hammond marklhammond at gmail.com
Mon Oct 4 06:43:40 PDT 2010

Hi All,

Here is a quick AO-16 update.  On Sunday I turned AO-16 long enough to
get some telemetry packets.  The satellite would remain on for less
than one minute after being commanded on.  A quick test of the "bent
pipe" voice mode repeater was successful. .  The "hardware watchdog
timer problem" is still evident; as expected, spacecraft temperatures
are insufficient to keep the transmitter ON (needs to be above 15 deg

Orbit projections suggest that satellite illumination conditions will
not result in increased temperatures for nearly 10 years.   Command
stations do periodically turn AO-16 "ON" to check on its condition and
see if the hardware timer problem has "automagically" fixed itself
(which in not anticipated, but who knows...).

AO-16 telemetry
3 Oct 2010  1838 utc

PACSAT MBL Telemetry Decoder Ver. 1.3     (c) Mike Rupprecht, DK3WN
(average values)

+10V Battery Bus   : 0.00 V
Battery Charge Reg : 0.55 mA
Base Temp          : 9.07 °C
PSK RF Out         : 1.90 W
+5V RX Bus         : 4.87 V
+8.5V RX Bus       : 8.49 V
+10V RX Bus        : 11.24 V

Here is another teaser :)  Several months ago I commanded the AO-16
S-band transmitter ON; it too remains functional (albeit weak), and
was received by me, Drew KO4MA, and Alan WA4SCA.

Mark L. Hammond [N8MH]

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