SB SAT @ AMSAT $ANS-070.01 UNAMSAT-1 PRELIMINARY FREQUENCIES HR AMSAT NEWS SERVICE BULLETIN 070.01 FROM AMSAT HQ SILVER SPRING, MD MARCH 11, 1995 TO ALL RADIO AMATEURS BT BID: $ANS-070.01 XE1TU Provides Preliminary UNAMSAT-1 Frequency List The following table provides a list of the frequencies of UNAMSAT-1 as mesured in the laboratory as provided to the AMSAT News Service (ANS) by UNAMSAT-1 Project Director, David Liberman (XE1TU). SOURCE TX1 TX2 TXP RXA RXB RXC ----------------------------------------------------------------- FUNCTION TELEMETRY EXP COMMUNICATION ----------------------------------------------------------------- ROLE TRANSMIT RECEIVE ----------------------------------------------------------------- BAND APPLICATION UHF UHF HF VHF VHF VHF ----------------------------------------------------------------- CARRIER 437.2060 437.0642 40.997 145.831 145.851 145.871 FREQUENCY Fo MHz ----------------------------------------------------------------- BANDWIDTH 15 15 20 20 20 CENTERED AROUND Fo (KHz) ----------------------------------------------------------------- MODULATION TYPE BPSK BPSK NO MOD FSK FSK FSK ----------------------------------------------------------------- BIT RATE (bps) 1200 1200 1200 1200 1200 ----------------------------------------------------------------- MODULATION INDEX +-90 +-90 2.5 2.5 2.5 RANGING PHASE PHASE TM SHIFT SHIFT ----------------------------------------------------------------- POWER 2.95 2.90 70 TRANSMITTER(W) ----------------------------------------------------------------- SENSITIVITY - 124 dBm ----------------------------------------------------------------- L.O. FREQUENCIES 46 MHZ ----------------------------------------------------------------- 1st INTERMEDIATE 40 - 50 MHz FREQUENCY ----------------------------------------------------------------- 2nd INTERMEDIATE 10.7 MHz FREQUENCY ----------------------------------------------------------------- CLOOSED LOOP AFC AFC AFC AFC AFC CHARACTERISTICS LOOP LOOP LOOP LOOP LOOP or PHASE RECEIVER ----------------------------------------------------------------- POLARIZATION CIRC CIRC LIN LIN LIN LIN These frequencies are expected to shift slight after UNAMSAT-1 is launched because of temperature variations on-orbit. The following information about the TECHSAT/UNAMSAT launch proveided by 4X1AS: TECHSAT1 will be launched on the 28th of March from Plesetsk Russia, about 700 km north of MOSCOW. The launcher is called START. Altitude 670 approx. Orbit circular, not sun synchronized. Keplerian elements will be updated close to launch date Satellites: TECHSAT-1 and UNAMSAT-1 Epoch time: 95087.37500000 (Separation) Inclination: 075.3991 deg RA of node: 328.7324 deg Eccentricity: 0.0015304 Arg of perigee: 101.9385 deg Mean anomaly: 355.9607 deg Mean motion: 14.7000703 rev/day As the launch date approaches, all are invited to help the UNAMSAT-1 and TECHSAT-1 ground controllers help monitor the status of the health of this year's newest OCSCARs. [The AMSAT News Service (ANS) would like to thank David Liberman (XE1TU) and 4X1AS the information in this bulletin.] /EX SB SAT @ AMSAT $ANS-070.02 CALL FOR PAPERS HR AMSAT NEWS SERVICE BULLETIN 070.02 FROM AMSAT HQ SILVER SPRING, MD MARCH 11, 1995 TO ALL RADIO AMATEURS BT BID: $ANS-070.02 First Call For Papers For AMSAT-NA Space Symposium '95 For its 1995 Annual Meeting and Space Symposium, AMSAT will return to Orlando, Florida. We will gather, again this year, at the Orlando Airport Holiday Inn October 6, 7, and 8. It not too soon to start thinking about presenting a paper to be presented at the Symposium. The Chairman for Papers this year is Bob Walker (N4CU). Please conteact him if you can honor us with your knowledge on a subject approproate to amateur satellites. He can be reached at his INTERNET address of n4cu@amsat.org. [The AMSAT News Service woudl like to thank Bob Walker (N4CU) for pro- viding this information.] /EX SB SAT @ AMSAT $ANS-070.03 WEEKLY OSCAR STATUS REPORTS HR AMSAT NEWS SERVICE BULLETIN 070.03 FROM AMSAT HQ SILVER SPRING, MD MARCH 11, 1995 TO ALL RADIO AMATEURS BT BID: $ANS-070.03 Weekly OSCAR Status Reports: 11-MAR-95 AO-13: Current Transponder Operating Schedule: The Mode Schedule from 20-FEB-95 until 22-MAY-95 will be: Mode-B : MA 0 to MA 190 |Omnis : MA 250 to MA 140 Mode-BS : MA 190 to MA 218 | Mode-S : MA 218 to MA 220 |<- S beacon only Mode-S : MA 220 to MA 230 |<- S transponder; B trsp. is OFF Mode-B : MA 230 to MA 256 | Blon/Blat 230/0 Note: The Mode-B beacon is ON during the Mode-S transponder operations only. Please do NOT uplink to the B transponder during Mode S only, as it inter- feres with Mode-S operations. [G3RUH/DB2OS/VK5AGR] AO-10: F1JKJ reports that he was able to use AO-10 during this past week Although it was not very strong, it was good enough to make some QSOs. F1JKJ says that in his opinion it seems that the bird is coming back to life thanks to good solar illumination on the solar panels. [F1JKJ] The AMSAT NEWS Service (ANS) NEEDS YOUR HELP! The ANS looking for volun- teers to contribute weekly OSCAR status reports. If you have a favorite OSCAR which you work on a regular basis and would like to contribute to this weekly bulletin, please send your observations to WD0HHU at his CompuServe address of 70524,2272, on INTERNET at wd0hhu@amsat.org, or to his local packet BBS in the Denver, CO area, WD0HHU @ N0QCU. Also, if you find that the current set of orbital elements are not generating the correct AOS/LOS times at your QTH, PLEASE INCLUDE THAT INFORMATION AS WELL. The information you provide will be of value to all OSCAR enthusiasts. /EX