[amsat-bb] Re: COMPASS-1 beacon heard

[Roger Kolakowski]

Hi Mike...

It always puzzled me why in your original list of commands you suggested the
following 2 commands  one after the other:

****14#200#                  heater off to -55 degr                    THIS
IS THE VERY IMPORTANT COMMAND
****13#200#                  heater on to -55 degr

It would seem to me that command 1 turned the heater OFF and then command 2
just turned it back ON AGAIN! ....

Maybe you were just using "shorthand" and something else happens when you
issue these commands one after the other?

Thanks!

Roger
WA1KAT



----- Original Message -----
From: "Mike Rupprecht" <mail at mike-rupprecht.de>
To: "'Mike Rupprecht'" <mail at mike-rupprecht.de>; "'amsat'"
<amsat-bb at amsat.org>
Sent: Friday, August 22, 2008 6:00 AM
Subject: [amsat-bb] Re: COMPASS-1 beacon heard


Hi all,

A replay of the previous pass! All commands sent and acknowledged at 0939
UTC.

Beacon received at 0943 UTC: 00 compass ff0740150600002100009000ff

Solar Cell Voltage     5.00 V
Solar Panel 6 Cur      43.92 mA
Solar Panel 2 Cur      0.00 mA
Solar Panel 3 Cur      37.65 mA
Solar Panel 4 Cur      131.76 mA
Solar Panel 5 Cur      401.57 mA
EPS Reset Counter      0
Power Level            Critical Battery Capacity
Heater Active          Battery Heater ON
Power Safe Counter     0
Emergency Mode Counter 0
Battery Voltage        2.82 V
Battery Current        0.00 mA
Battery Temperature    -1 °C

Heater still on - I think there is no internal communication between the
units (I2C bus down).
Mhh, I haven't got a clue.

73, Mike
DK3WN



-----Ursprüngliche Nachricht-----
Von: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] Im
Auftrag von Mike Rupprecht
Gesendet: Freitag, 22. August 2008 10:20
An: 'amsat'
Betreff: [amsat-bb] COMPASS-1 beacon heard

Hi all,



I have one day off and tried to command COMPASS in full sunlight.

The first pass (for Europe) this morning was low, only 6°. All commands were
accepted and confirmed several time by COMPASS.

At 0801UTC the beacon came with 00 compass ff0660000000002100009800ff


It shows, that the heater was still on - in spite of confirmed commands.  I
will try the next pass (nearly 90°).


73, Mike
DK3WN



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