[sarex] PCSAT2 special Ops Event Update

Robert Bruninga bruninga at usna.edu
Tue Aug 22 08:35:06 PDT 2006


SAREX:  PCSAT2 SPECIAL OPERATIONS RESUME.  Operations were
suspended 
When PCSAT2 ran out of sunlight on ISS on the 15th.  Operations
resumed 
after ISS changed attitude to XPOP on the 18th.

> From: Robert Bruninga [mailto:bruninga at usna.edu]
> Sent: Saturday, August 05, 2006 8:41 AM
> 
> PCSAT2 SPECIAL EVENT AND OPERATIONS
> --------------------------------------------------------------
> Subj:  ISS Packet =>VOICE Contacts:
> 
> For the remaining days of
> PCSAT2's operation on ISS, PCSAT2 will be configured for VOICE

> response to normal packets transmitted via  the normal ISS
digipeater 
> 145.99 uplink / 145.800 downlink.  The command station's voice

> downlink will be on 437.975 +/- Doppler and he/she will
attempt to 
> acknowledge  by voice all packets seen on the packet uplink or

> generally chat about the system.
> 
> The UHF downlink will be weak (only 1 Watt) and being UHF (9dB

> worse than 2m), will need at least a small beam to hear it.
> 
> Users who want to participate, simply send your packets as
normal VIA 
> ARISS on 145.99 uplink / 145.800 downlink, but listen on the
437.975 
> downlink for the combined voice and packets.  This will only
work when
> PCSAT2 is in range of a participating command station and
there is no 
> guarantee that all command stations will be available on  any
given 
> pass.  In otherwords, this may be rare, but fun.
> 
> Right now, passes in the Northern Hemisphere are occuring in
the 
> evening.  Passes in the Southern Hemisphere right now are from
midday.
> 
> Best thing to do is simply monitor 437.975 during ISS passes
and if 
> you hear a command station, then send us a 'hello'
> packet via the  ISS (or PCSAT2) digipeater.
> 
> The PCSAT2 Packet system on 145.825 up and 435.275 is also
operational 
> as well as the 10m to 435.275 transponder (for HIGH
> power attempts on 29.401 MHz)...  Just connect to PCSAT2 on
> 145.825 to bring up the transponder.  Still no reports of
anyone 
> attteempting it or being successful.
>
> de WB4APR
> US Naval Academy Satellite Station





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