SB NEWS @ AMSAT $SPC0814 * SpaceNews 14-Aug-00 * BID: $SPC0814 ========= SpaceNews ========= MONDAY AUGUST 14, 2000 * AMSAT-UK COLLOQUIUM 2000 * ============================ AMSAT-UK's Y2K Colloquium was held over the last weekend in July at the University of Surrey. 71 people attended from 14 countries and were addressed by 22 different speakers on a variety of subjects from the simple to the deeply complex. Other features of the weekend included a firing of SSTL's rocket thruster, a demonstration of 2400 MHz reception from SSTL's minisat UO-36, an IARU Forum, and guided tours around Surrey's impressive ground command facility. Following VK5AGR relinquishing the position of Satellite Frequency Coordinator, the Forum was asked for nominations for his successor and strongly recommended Peleg Lapid, 4X1GP, for this position. This year's event was planned to have a lot about P3D, and there were no disappointments. Apart from several items of hardware being discussed, attendees were also told that the new provisional date for P3D's flight into orbit is now 31 October. The launch campaign should start on 11 September (fingers crossed). There were other talks as well. The one about Satellites-on-a-Chip (including solid-fuelled thrusters) met with such interest and acclamation that the speaker (on UoS academic staff) has promised an article for publication in Oscar News. Surrey's recently-launched (microsat-sized) SNAP spacecraft cost less than a million UK Pounds. Apparently NASA's budget for a similar project is $28M. The leader of the University of Bristol's Project HAND reported on their progress. He also happens to be the President of the British Interplanetary Society, so a separate talk about that was held as well. Each of the Beginners' sessions (General, analog, digital) had between 15 and 20 attendees. Organization of these sessions was delegated to G7HIA and W2RS. Of particular interest were the live demonstrations via UO-14 and AO-27 which netted almost twenty contacts in about eight countries using just an HT and an Arrow antenna. There was special interest in the transatlantic contacts. QSL via G3RWL. The gathering finished up with a talk about SSTL's future plans, including lunar and interplanetary missions. Next year's event will probably take place over the same weekend, the last one in July (27 to 29 July) 2001. With P3D hopefully in orbit by then, organizers have high hopes that attendance (and membership) will pick up. The following suggestions for 2001 have been made: Antenna Test facility (NB NOT a full antenna range); Beginners' sessions, "Show and Tell" presentations. A call for papers will probably issue about November. [Info via Richard W L Limebear, G3RWL] * SNAP-1 NEWS * =============== Chris Jackson, G7UPN, reports that the SNAP-1 satellite is working okay, but controllers are still working on the satellite's operational software. Due to the short timescale for this mission (6 months from design to launch) controllers have no OBC (on-board computer) software. This means that they need to switch it on over Surrey manually at this stage. The downlink is 100mW at 2430MHz. It is 38k4 BPSK. With a 2.4M dish, the signal is very good most of the time, however the attitude isn't properly stabilized so there are large fluctuations in signal level. Also, it is close to the microwave oven and ISM band and therefore there is considerable interference. It will probably take another few months to get things into a state where they are usable. The power budget is very low given the small size of the spacecraft (6kG). [Info via Chris Jackson, G7UPN] * AMSAT-OSCAR-10 NEWS * ======================= Cesar Daglio, LU8EBH, near Buenos Aries, Argentina, reports making some interesting observations while recently while communicating through the AMSAT-OSCAR-10 satellite. Cesar reported that while approaching apogee, AO-10's beacon first appeared to be about 15 db above his noise floor. His downlink was 5 db less. Other stations from Europe arrived about 4 to 5 db above the noise floor. Downlink signals were best using left hand circular polarization, and signal fading (QSB) was deep. QSB was minimized by switching the polarization when the signal dropped. At apogee, the polarization was unstable. The QSB changed and when the altitude started to decrease, the polarization changed to right hand circular, and the signals improved substantially. At maximum range, the beacon signal was really strong, about 10 db over the noise floor. As the satellite's altitude decreased, Cesar's downlink signal strength increased dramatically, like others stations from Europe. Cesar stated that it was a pleasure find many stations from Africa and Europe, like IW0RLC, DO1WCS, F1HP, FY1DW, DL9GBH, DD5JK, and SP9MCY active on the satellite. [Info via Cesar, LU8EBH] * FEEDBACK/INPUT WELCOMED * =========================== Comments and input for SpaceNews should be directed to the editor (John, KD2BD) via any of the paths listed below: WWW: http://www.njin.net/~magliaco/ MAIL: John A. Magliacane, KD2BD Department of Engineering and Technology Brookdale Community College 765 Newman Springs Road Lincroft, New Jersey 07738 U.S.A. PACKET: KD2BD @ N2TDU.NJ.USA.NA INTERNET: kd2bd@amsat.org, magliaco@email.njin.net SATELLITE: KITSAT-OSCAR-25 <<=- SpaceNews: The first amateur newsletter read in space! -=>> <<=- Serving the planet (and beyond) since 1987 -=>> /EX