jan 7 2003
jan 6 2003
Varje sndag kl.10 samlas vi ngra stycken p 3740 kHz fr att ta del av
veckans mer eller mindre spnnande nyheter m.m. p satellitomrdet.
Fr dem som inte har mjlighet att delta eller lyssna d fljer hr
rubrikerna i bulletinen 03-01-05.
Frgor besvaras via e-post.(email@example.com)
1. AO-40 gjorde sitt tusende varv 03-01-03.
2. AO-40: Ku-bandets beacon igng (24 GHz).
3. AO-40 DX. ett par FK8-stationer igng.
4. SAUDISAT 1C fungerar som transponder.
5. SAUDISAT 1B = SO-42 (ej igng fr amatrbruk)
6. UNISAT-1 italiensk amatrsatellit bland de nya.
7. Objektnummer fr alla de nya satelliterna.
8. SAFIR-M ingen transponder, den bara repeterar vad den hr.
9. FO-29 gr stndigt i mode JA dvs r SSB- och CW-transponder.
10. AO-27 fungerar som FM-transponder.
11. AO-7 har hrts igng.
12. AO-16 och LU-19: status.
13. RADARSAT-1 kurerad.
14. Solen gr vgen .
15. ROSETTA:s uppsndning frdrjd.
16. GENESIS: status.
17. DEEP SPACE-1 : status.
73 Henry SK0TX/SM5BVF
jan 5 2003
Hr kommer nyhetssammanfattning frn ANS:
SB SAT @ AMSAT $ANS-005.03
AO-40 OPERATING SCHEDULE UPDATE
Stacey Mill, W4SM, provided the following update on AO-40 s operating schedule. The power budget allows us to extend the passband time by 10 MA s on each end and we have activated the 24 GHz K-band transmitter.
From MA 126 to 128 both the S2 and K middle beacons only will be active. From MA 128 to 132 both the S2 & K transmitters will be active on the U/L uplink passbands. Stacey said. He continues, The last time the K-Tx was active, it was noted to have suffered a partial power loss suggesting that one of the output transistors may have failed. We will monitor its function to see if this condition has changed. Stacey also requested that K-band successes and failures be reported to the AMSAT-BB.
Stacey also noted that, We are holding ALON/ALAT at nominal 0/0, but ALAT has been drifting slightly positive (~1 deg), which will slightly favor northern hemisphere users.
[ANS thanks Stacey, W4SM, for the above information]
SB SAT @ AMSAT $ANS-005.04
AO-40 RUDAK OPERATIONS
During the week of Christmas the RUDAK team has concentrated on getting software loaded after the long period of quite time when there was inadequate power to run RUDAK and the experiments.
A task to record all activity on the CAN bus was loaded and run on the B processor while the CAN server and CEDEX task were run on the A. The CAN logging task files and the CEDEX task files were downloaded and are being analyzed to diagnose the problem that has prevented collection and logging of CEDEX data since December, 2001.
During the Christmas eve and day windows it was determined both RUDAK processors had crashed back to the boot loader and reloading was begun. An initial attempt to reload A failed and the short window prevented further diagnosis.
Some testing on the new windows based command software was accomplished and a few changes have been made. This is an important activity because it forms the basis for telemetry and command software for future AMSAT-NA satellites including ECHO and Eagle. Again, however, the short RUDAK window prevented complete testing.
Further load and diagnosis activities will be undertaken during the next available window.
[ANS thanks Jim, WD0E, for the above information]
jan 5 2003
Information frn AMSAT-UK och AMSAT-DL:
Schedule updated. The power budget allows an extention of passband time by 10 MA s on each end.
Stacey reports: The AO-40 schedule has been modified to activate the 24 GHz K-band transmitter. From MA 126 to 128 both the S2 and K middle beacons only will be active. From MA 128 to 132 both the S2 & K transmitters will be active on the U/L uplink passbands. The last time the K-Tx was active, it was noted to have suffered a partial power loss suggesting that one of the output transistors may have failed. We will monitor its function to see if this condition has changed. Please report your successes/failures to the amsat-bb. We are holding ALON/ALAT at nominal 0/0, but ALAT has been drifting slightly positive (~1 deg), which will slightly favor northern hemisphere users.
Klla: AMSAT-DL, AMSAT-UK
jan 3 2003
I am pleased to announce that I have received the following E-mail from Saudi Arabia.This satellite will require activation on each pass by a designated control operator.
A worldwide network of designated control operators is now being developed so that Radio Amateurs may begin using the satellite immediately. You will note however that a 67.0 Hz tone is required to switch on the satellite when uplinking.
The purpose of this is to try and remove annoying
You will note that the operational Frequencies are the same as AO-27.
We expect that the satellite will receive an OSCAR Number within a few days.
From Saudi Arabia :-
Dear Mr. Robin Haighton,
We are pleased to inform you that the Space Research
Institute of KACST has successfully launched its third spacecraft, SaudiSat-1C. The launch and separation were accomplished flawlessly on December 20th, 2002, using a
modified SS-18 intercontinental ballistic missile.
SaudiSat-1C carries several experiments, including a new mode J FM amateur repeater experiment operating on 145.850 MHz uplink and 436.800 MHz downlink.
The repeater was activated and tested this past week, and we are pleased to make it available to your members and amateurs worldwide as power permits.
The repeater is accessible using a 67.0 Hertz tone on the uplink, for on-demand activation.
The receive antenna is a single element quarter wave whip on top of the spacecraft, feeding a VHF receiver with -124 dBm sensitivity, while the UHF transmitter is coupled to a quarter wave antenna element on the bottom of the spacecraft, radiating 250mW of RF energy.
We kindly request a new Saudi Oscar designator for our
Please enjoy the new satellite 73
Robin Haighton VE3FRH
President AMSAT NA
73 de SM7WSJ
Klla: Amsat NA