SB SPACE @ ARL $ARLS005 ARLS005 Last shuttle SAREX mission is in space! ZCZC AS05 QST de W1AW Space Bulletin 005 ARLS005 From ARRL Headquarters Newington, CT July 23, 1999 To all radio amateurs SB SPACE ARL ARLS005 ARLS005 Last shuttle SAREX mission is in space! The third time was the charm for shuttle Columbia mission STS-93--the last shuttle that will carry the Space Amateur Radio EXperiment. Future Amateur Radio in space activities will involve the International Space Station. After a faulty sensor Tuesday and thunderstorms Thursday prevented Columbia from blasting off with Eileen Collins, KD5EDS, at the helm, the shuttle took off early Friday, July 23, but not without a glitch. Collins reported a fuel cell problem nine seconds after liftoff. Some seven hours after launch, the STS-93 crew deployed the world's most powerful X-ray telescope, the Chandra X-Ray Observatory. Collins is the first woman to lead a US space flight. In addition to Collins, the STS-93 crew includes Pilot Jeffrey Ashby; and Mission Specialists Cady Coleman, KC5ZTH; Steven Hawley; and Michel Tognini, KD5EJZ, a French astronaut. STS-93 carries the 25th SAREX payload, and students at five US schools in Virginia, Texas, and Florida, have scheduled Amateur Radio QSOs with the astronauts. Earthbound stations may be able to listen to the astronaut side of the QSO on 145.80 MHz FM, but they will not be able to transmit to them. If all goes as planned, students at each school will get a chance to directly interview the astronauts via the SAREX linkups. Typical passes last approximately 10 minutes. The crew may have time for some random Amateur Radio contacts as well. This crew prefers voice mode over packet, but the packet robot will be on when the crew is occupied elsewhere. For all voice contacts, stations should listen on the downlink for the crew to call ''CQ.'' The downlink frequency to listen for the STS-93 crew is 145.80 MHz FM. There are two uplink frequencies--144.47 and 144.45 MHz FM (over Europe, the single uplink frequency is 144.49 MHz). The crew will not favor either uplink frequency. The packet robot downlink frequency is 145.80 MHz FM, and the uplink is 144.49 MHz FM worldwide. The connect on packet should be to W5RRR-1; stations will get a connect number if they are successful. Stations are asked to make only one packet connect to let other stations have a chance. The robot should never be used to connect to another station. APRS UI frames are welcome. If you send an APRS packet, once you see it digipeated, cancel your request to avoid unnecessary QRM and keep your comments very brief. The QSL route for random STS-93 SAREX contacts is care of Dan Miller, K3UFG, ATTN: STS-93, ARRL, 225 Main St, Newington, CT 06111. The Dayton Amateur Radio Association has volunteered to handle QSL duties for this mission. For updated information on STS-93, visit http://garc.gsfc.nasa.gov/~kc6rol/sts93.html. NNNN /EX