SB NEWS @ AMSAT $SPC0808 * SpaceNews 08-Aug-94 * BID: $SPC0808 ========= SpaceNews ========= MONDAY AUGUST 8, 1994 SpaceNews originates at KD2BD in Wall Township, New Jersey, USA. It is published every week and is made available for unlimited distribution. * DOVE NEWS * ============= Jim White reports that DOVE is running a new set of software that tests the digital to analog converter and other hardware and software capabilities of the satellite. DOVE now transmits digitally generated tones through the DAC and exercises software that implements two way communications between on-board processors. [Info via WD0E] * REVISED AO-13 SCHEDULE * ========================== A revised AO-13 transponder mode schedule for 1994 Sep 12 - Dec 19 is presented below. During the severe eclipses at the end of October, the mode-B transponder will be ON from MA 0 to MA 30. An expedition to The Gambia (C56) coincides with this period, and this change is in response to its specific request. N QST *** AO-13 TRANSPONDER SCHEDULE *** 1994 Sep 12 - Dec 19 Mode-B : MA 30 to MA 150 |<- OFF Oct 22 - Nov 07 for eclipses Mode-B : MA 150 to MA 190 | max duration 2h 12m 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 30 | Alon/Alat 230/0 Omnis : MA 250 to MA 140 | Move to attitude 180/0, Dec 19 The battery charge state is of paramount importance during eclipse seasons. As always the command team may have to have to make temporary changes to the published schedule. In that case we will try to minimise the inconvenience, setting Mode-B OFF from MA 230-256 in the first instance. Please don't rely on gossip and rumour! Continuous up to date information about AO-13 operations is always available on the beacons, 145.812 MHz or 2400.664 MHz in CW at 0 & 30 minutes past the hour, RTTY at 15 & 45 minutes past the hour and 400 bps PSK otherwise. These bulletins are also posted to Internet, ANS, Packet, PacSats etc, and many international newsletters. A 400 bps PSK decoder is available from G3RUH and several DSP products; display software P3C.EXE etc from many Amsat groups. The active command stations are listed below, and constructive feedback about operations is always welcome. Peter DB2OS @ DB0FAU.#NDS.DEU.EU James G3RUH @ GB7DDX.#22.GBR.EU Graham VK5AGR @ VK5WI.#ADL.#SA.AUS.OC The above may also be reached via Internet (callsign@amsat.org) and KO-23. Please remember to state clearly a return address. Notes prepared on behalf of, and in total cooperation with the above by: James Miller G3RUH @ GB7DDX.#22.GBR.EU 1994 Aug 01 [Mon] 2014 utc * WEBERSAT NEWS * ================= WEBERSAT (WO-18) is broadcasting new pictures and light spectrometer data weekly. Software for the extraction, decoding, and display of spectrometer data, written by Bob (KB7KCL), is available by request on AO-16/LO-19, or directly from Weber State University. Monday utc, continues to be the day for the broadcast of the most recent spectrum, along with the week's WOD. WeberWare 1.0, 1.2, 1.3, or a similar program is required for picture extraction, decoding, and display. WeberWare 1.3 is the current software version, and is available from Weber State University, AMSAT-NA, or AMSAT-UK. The most recent WeberSat double field image is number 9/13. WO-18 is currently sending another portion of the base line survey of all telemetry channels. The selected channels are 0x36 54 +Y Temp, 0x37 55 PSKHPA Temp, 0x38 56 +Z Temp, 0x39 57 Horizon Sensor 1, 0x3A 58 Spectrometer Light Sensor, and 0x3B 59 Impact Sensor. This is an excellent opportunity for a student, group, or class to use this data to better understand WeberSat's experiments. WOD collection and broadcast will adhere to the following schedule: 28 July/Week2: **Variable (Requests for specific channels will be taken.) 04 August/Week3: BCR, 21 22 29 2F 33 36 11 August/Week4: Temperatures and impact detector, Ch# 14 2F 30 35 3B 40 18 August/Week1: Array currents, Ch# 26 27 28 29 2A 2B 25 August/Week2: **Variable (Requests for specific channels will be taken.) **If no requests are received for specific WOD, then another part of the base line survey of all telemetry channels will be conducted. [Info via Tom Davis, EA2CLS] * AO-21 NEWS * ============== RUDAK2>BEACON : RUDAK-II Schedule: (down 145.987, up 435.016) min/ 9 Beacon Mode 0..2 FM Repeater 3 Digital Audio 4..6 WEFAX Picture 7..8 AFSK TLM * UNAMSAT-1 NEWS * ================== The UNAMSAT-1 spacecraft is still on the ground and patiently awaiting for its launch, which should take place in the next few weeks. An operations guide for using the UNAMSAT-1 satellite will be available at the AMSAT Symposium in Orlando, Florida. Questions and comments can be directed by Internet mail to: unamsat@aleph.cinstrum.unam.mx. [Info via XE1TU of the UNAMSAT-1 Team in Mexico City] * APT WXSAT NEWS * ================== The following weather satellite observations were made in Germany at a staon located at 50.7 degrees North Latitude, 7.1 East Longitude on 31-Jul-94: NOAA-9: APT 137.62 *OFF* NOAA-10: APT 137.50 On NOAA-11: APT 137.62 On NOAA-12: APT 137.50 On Meteor 2-21: APT 137.85 *OFF* Meteor 3-5: APT 137.85 On NOAA-9 is off due to VHF-conflict with NOAA-11. Checked APT of Meteor 3-3, -4, and -6, no Signal 137.00-137.99 MHz from 06.30 UT until 19.00 UT. [Info via Peter Henne] * THANKS! * =========== Thanks to all those who sent messages of appreciation to SpaceNews, especially: KC5IHT K7MGB N7SMS WD9IYT * FEEDBACK/INPUT WELCOMED * =========================== Mail to SpaceNews should be directed to the editor (John, KD2BD) via any of the following paths: FAX : 1-908-747-7107 PACKET : KD2BD @ N2KZH.NJ.USA.NA INTERNET : kd2bd@ka2qhd.de.com -or- kd2bd@amsat.org SATELLITE : AMSAT-OSCAR-16 MAIL : John A. Magliacane, KD2BD Department of Engineering and Technology Advanced Technology Center Brookdale Community College Lincroft, New Jersey 07738 U.S.A. <<=- SpaceNews: The first amateur newsletter read in space! -=>> /EX