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@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