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UA9FBV > SAT 13.07.04 05:16l 235 Lines 7740 Bytes #999 (0) @ AMSAT
BID : ANS-193.S1
Read: GUEST
Subj: WEEKLY SATELLITE REPORT PART 1
Path: DB0FHN<DB0THA<DB0ERF<DB0MRW<OK0PKL<OK0PPL<DB0RES<ER3KAZ<UA9FBV
Sent: 040713/0308Z @:UA9FBV.PRM.RUS.AS #:2124 [Perm] GATEWAY $:ANS-193.S1
From: UA9FBV@UA9FBV.PRM.RUS.AS
To : SAT@AMSAT
AMSAT NEWS SERVICE BULLETIN 193.S1 FROM AMSAT HQ
SILVER SPRING, MD, July 11,2004
TO ALL RADIO AMATEURS
BID: $ANS-186.S1
AO-51 ECHO
Catalog number: 28375
Launch date: June 29, 2004
Status: Commissioning
Please DO NOT Transmit to the satellite - commissioning must take
priority. A bulletin will be released when the satellite is open for general
use.
Analog voice downlink: 435.225 MHz FM
Analog voice uplink: 145.920 MHz FM 67Hz PL tone
Digital 9600 bps AX25 PACSAT Protocol Mailbox
Digital downlink: 435.150 MHz FM
Digital uplink: 145.860 MHz FM
ECHO Experimenters Day Operation Wednesdays (UTC) 00:00 23:59
Default configuration will be:
Digital downlink: 2401.200 MHz 38.4 kbps FM
Digital uplink: 1268.700 MHz 9600 bps FM
1268.700 MHz uplink 9600 bps FM
The ECHO Operations committee will determine modes and schedules for
experiments.
July 6, 2004
On the 06 July 2004, during the 0310 UTC pass, the SQRX was set to a VHF
frequency and the antenna relay switched to the VHF whip. Once the various
modulator/switch functions where set to the right configuration the SQRX
audio path proved to work fine. In an additional test of the SQRX the
receiver was retuned to an L-band frequency and connected to the L-band
antenna on the bottom of AO-51.
Testing has also been done on S-band using a frequency of 2401.200
MHz. The second 70cm transmitter has also been tested as well as the
ability to command frequency changes to the transmitters should that be
needed in the future. All transmitters have been confirmed to be
operational.
Friday, 09 July 2004 the 38k4 digital downlink was enabled for the first
time on the UHF A transmitter. Mike was able to copy packets at 38k4.
Further testing will be done, and some WOD data will be downloaded at 38k4.
The modulator settings for that mode will need to be tweaked as testing
continues.
Mike, KE4AZN has taken some WOD data at 3 second intervals during daylight
passes over his station to get a better look at the satellite's attitude.
That data is being analyzed. When AO-51 is not in view of the command
stations, WOD at 30 second intervals is gathered continuously during the
period from the time last time they see the satellite after a group of
passes until their next AOS.
The EDAC count in Echo is not counting the actual number of physical memory
errors, but the number of times the software detects a memory error while it
is running. If the software loops through that section of memory a number
of times before the error is cleared, the EDAC count will increase by a
large value. There is a routine that runs on a specific time interval to
"wash" memory and clear any errors. Until that routine runs, if the program
loops through that memory area, it will count an EDAC error.
With the file system now running, the downlink is going to show the BBS is
open even though the BBS has NOT been made available for general use.
Everyone is requested to please not transmit to ECHO until checkout and
commissioning has been completed. Unexpected uplinks may cause delays in
verifying the proper operation of ECHO and delay the opening of the
transponders to general use.
The commissioning and checkout activities are going very well. During this
checkout period activities and plans are very dynamic and frequent mode and
transmitter changes should be expected.
[ANS thanks Jim, WD0E and Mike, KE4AZN for the above information]July 4,
2004
Please DO NOT Transmit to the satellite - commissioning must take
priority. A bulletin will be released when the satellite is open for general
use.
More information is available at:
http://www.amsat.org/amsat-new/echo/
[07112004}
INTERNATIONAL SPACE STATION (ISS) - ARISS
Catalog number: 25544
Launch date: November 20, 1998
Status: Operational
Digipeater: Active
The current Expedition 9 crew is:
Commander Gennady Padalka, RN3DT
Flight Engineer Mike Fincke, KE5AIT
Worldwide packet uplink: 145.990 MHz FM
Region 1 voice uplink: 145.200 MHz FM
Region 2/3 voice uplink: 144.490 MHz FM
Worldwide downlink: 145.800 MHz FM
Russian callsigns RS0ISS, RZ3DZR
USA callsign NA1SS
Packet station mailbox callsign RS0ISS-11
Packet station keyboard callsign RS0ISS-3
Digipeater callsign ARISS
The ISS daily crew schedule can be found at:
http://spaceflight.nasa.gov/station/timelines/
Remember that the crew operates on UTC time. Also, all of the time line is
NOT translated from Russian and posted.
More information is available at:
http://www.rac.ca/ariss
http://spaceflight.nasa.gov/station/reference/radio/
http://www.marexmg.org/fileshtml/unprotopage.html
http://www.issfanclub.com
http://oscar.dcarr.org/
[05092004]
=====
AO-7 AMSAT OSCAR 7
Catalog number: 07530
Launch Date: November 15, 1974
Status: Semi-operational in sunlight.
Return to active status: June 21,2002
Uplink: 145.850 to 145.950 MHz CW/USB Mode A
432.125 to 432.175 MHz CW/LSB Mode B
Downlink: 29.400 to 29.500 MHz CW/USB Mode A
145.975 to 145.925 MHz CW/USB Mode B
Beacon: 29.502 MHz, 145.972 MHz, 435.1 MHz, 2304.1 MHz
Emily, W0EEC has created a website to allow the users of AO-7 to record
contacts, observations and use of the satellite more effectively at:
http://www.experthams.net/ao7
This includes the ability to log contacts.
Tim, K3TZ has written a program to decode AO-07 telemetry. The program can
be
downloaded at:
http://www.qsl.net/k3tz/files/K3TZ_AO-07_Telemetry_Decoder_0.5.zip
For more AO-7 info:
http://www.amsat.org/amsat/sats/n7hpr/ao7.html
[05232004]
=====
AO-27 AMRAD
Catalog number: 22825
Launched: September 26, 1993
Status: Semi-Operational
Uplink: 145.850 MHz FM
Downlink: 436.795 MHz FM
John, K6YK, reports to ANS: Current AO-27 Status: Manual (Batteries are Low)
May 17th, 2004 UTC We are back in eclipse season and the batteries are low.
We will have it back on once they charge back up.
The latest information on AO-27 from control operator Michael Wyrick,
N3UC (former N4USI), can be found at:
http://www.ao27.org
An AO-27 question-and-answer page is available on the AMSAT-NA web
site, with updates by Ray, W2RS. The URL is:
http://www.amsat.org/amsat/intro/ao27faq.html
[ANS thanks John, K6YK, for this week's AO-27 report]
[06062004]
=====
FO-29 JAS-2
Catalog number: 24278
Launch Date: August 17, 1996
Status: Operational
Voice/CW Mode JA
Uplink: 145.90 to 146.00 MHz CW/LSB
Downlink: 435.80 to 435.90 MHz CW/USB
Beacon: 435.795 MHz
Digital Mode JD
Uplink: 145.850 145.870 145.910 MHz FM
Downlink: 435.910 MHz 1200-baud BPSK or 9600-baud FSK
Callsign: 8J1JCS
Digitalker: 435.910 MHz
Please send the reception reports to lab2@jarl.or.jp . Please use the
subject
line: 'FO-29reception report'.
Mineo, JE9PEL, has an FO-29 satellite telemetry analysis program that will
automatically analyze all digital telemetry from the satellite (such as
current, voltage and temperature). FO29CWTE is available at:
http://www.ne.jp/asahi/hamradio/je9pel/
[05232004]
=====
SO-50 SAUDISAT-1C
Catalog number: 27607
Launched: December 20, 2002
Status: Operational.
Uplink: 145.850 MHz (67.0 Hz PL tone) (See below for operating
procedures)
Downlink: 436.795 MHz
To switch the transmitter on, you need to send a CTCSS tone of 74.4 Hz.
The
order of operation is thus: (allow for Doppler as necessary)
1) Transmit on 145.850 MHz with a tone of 74.4 Hz to arm the 10 minute timer
on board the spacecraft.
2) Now transmit on 145.850 MHz (FM Voice) using 67.0 Hz to PT the repeater
on
and off within the 10 Minute window.
3) Sending the 74.4 tone again within the 10 minute window will reset the 10
minute timer.
[06202004]
NNNN
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