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CX2SA > SAT 12.09.04 19:18l 66 Lines 2161 Bytes #999 (0) @ AMSAT
BID : ANS-255.01
Read: OE1DMB GUEST
Subj: ECHO Schedule Changes
Path: DB0FHN<DB0MRW<DB0SIF<DB0EA<DB0RES<ON0BEL<ZL2TZE<ED1ZAC<CX2SA
Sent: 040912/1811Z @:CX2SA.LAV.URY.SA #:13114 [Minas] FBB7.00e $:ANS-255.01
From: CX2SA@CX2SA.LAV.URY.SA
To : SAT@AMSAT
AMSAT News Service Bulletin 255.01 From AMSAT HQ
SILVER SPRING, MD. September 12, 2004
To ALL RADIO AMATEURS
BID: $ANS-255.01
Due to Tropical Storm Frances, which forced me to take down my antennas,
the Echo schedule has been changed. We will postpone the PSK31 test
until Tuesday 14 September. See below.
FM Repeat -- 2 Sept through 10 Sept
Echo is back in FM repeat mode on 435.300 mhz downlink. The BBS is closed.
Command Station Testing - 11 Sept until 14 Sept
On 11 Sept Echo will be turned off for all user activity, to allow
testing by command stations on the 38k4 high speed digital system. Plans
are to first test the 38k4 downlink on UHF (435.150), and then move to S
Band (2401.200). During testing the high speed digital downlink will be
turned on for complete orbits. Not just over a command station as during
past tests. Echo will send Telemetry data on the 38k4 downlink just as
it does now at 9k6. Therefore stations with 38k4 capability are welcome
to monitor and test their ability to "make bits" at 38k4.
TXB (435.300) will be off during this work.
Rescheduled Experimenters Day (rescheduled from 8 Sep) for 14 September
The plan for is to test the feasibility of running PSK31 on Echo. As
before, reports to the amsat-bb will be needed. I am not setup for this
mode so I need your feedback to know if it works.
Uplink: 10 meter band: 28.140 mhz USB PSK31 ONLY
Downlink: 435.300 mhz FM, Continuous Transmission, Power level to be
determined
The 9k6 digital downlink will most likely be off during the test.
Experimenters Wednesday for 15 September
Tentatively scheduled will be a test of the 38k4 digital downlink
allowing user access. The exact mode will be determined by the command
station testing detailed above.
Uplink: TBD Freq, 9k6 Digital, Pacsat Broadcast Protocol (PBP)
Downlink: TBD Freq, 38k4 Digital, PBP
Other Items
Power Consumption looked good while we were running the Mode L/S test on
Wednesday. So look for more Mode L/S in the future.
Check back to this page for the latest updates, plans, and schedule.
73 KE4AZN
Echo Command Team
[ANS thanks KE4AZN]
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