SB SPACE @ ARL $ARLS002 ARLS002 StenSat Released But Possibly Malfunctioning ZCZC AS02 QST de W1AW Space Bulletin 002 ARLS002 From ARRL Headquarters Newington, CT February 15, 2000 To all radio amateurs SB SPACE ARL ARLS002 ARLS002 StenSat Released But Possibly Malfunctioning Little to nothing has been heard from the StenSat Amateur Radio picosat, raising fears that the tiny picosat has malfunctioned. Stensat was released February 10 by the OPAL ''mother ship,'' according to James Cutler of Stanford University. StenSat was one of two picosats released by OPAL--Stanford University's Orbiting Picosat Automatic Launcher. The other was the JAK payload. Since the deployment, stations monitoring StenSat's 436.625 MHz downlink have heard only very weak signals, or nothing at all. According to StenSat coordinator Hank Heidt, N4AFL, StenSat may be operating in an ''abnormal mode.'' The picosat was supposed to transmit a CW identifier and packet telemetry after deployment, but neither have been heard. Heidt speculated that it might be operating in FM transponder mode. Clifford Buttschardt, K7RR, reported hearing his transmissions repeated through StenSat on February 12 and 13, but signals were weak and the audio distorted. Weak StenSat signals also were reported by Johann Lochner, ZR1CBC, at the SunSat ground station in South Africa. The StenSat group asks amateurs to monitor the downlink and send reports to hheidt@erols.com. StenSat has a crossband repeater aboard that is designed to operate much like the popular AO-27 satellite. Hank Heidt, N4AFL, of the StenSat team has more information on the StenSat Web site at http://users.erols.com/hheidt/. NNNN /EX