AO-51 Command Stations report that the seven year old spacecraft is now shutting down its transmitter after losing sunlight on its solar panels during eclipse periods. Two of the six battery cells are now dead. Since July 31, 2010 AO-51 … Continue reading
FOX Project Why two satellites? The original Fox Engineering Team Study was for a baseline satellite, with several options for enhancements. At that time, AO-51 was functioning well, with no indication that its lifetime would be short enough to impact … Continue reading
Please remember that the 20 meter EME net meets on saturday and sunday on 14.345 Mhz at 1500 UTC during the winter in the northern hemisphere. I start with the antenna on europe. We need the participation of all possible … Continue reading
SO-50 (Saudisat 1C) Saudisat 1C is a Saudi Arabian picosatellite that was launched by a Dnepr rocket from Baikonur at 17:00 UT on 20 December 2002. SO-50 carries several experiments, including a mode J FM amateur repeater experiment operating on … Continue reading
1200 Bit/s BPSK AX.25 soundcard demodulator Warbler is a piece of software made by Wouter Jan Ubbels (PE4WJ) which can be used to demodulate a 1200Bit/s AX.25 BPSK signal (e.g. from AMSAT-OSCAR 16/PACSAT or ITAMSAT-OSCAR 26), using the PC’s soundcard. … Continue reading
Delfi-n3Xt The Delfi-Next mission (also written as Delfi-n3Xt) is second in a development line of nanosatellites called the ‘Delfi Program’ and is successor to the successful Delfi-C3 mission. The mission statement for Delfi-Next is as follows: “Delfi-Next shall be a … Continue reading