I don want to bother with ground based receivers and recorders. What sorts of Data Logging products are available?
The rise of the microprocessor coincided almost perfectly with my hiatus from the hobby. If anyone out there has documented examples of the first micro-p to be flown in a model or HPR, send it to me and I’ll include it here. The October 1990 issue of Radio-Electronics magazine had a very long and detailed article by John Fleischer on an altimeter payload based on a solid state pressure sensor. The system consists of three parts: an analog board with the sensor and signal conditioning, a CPU board and a display module. The latter stays on the ground and can read out the data in either selected peaks (shades of the beginning!) or do a 1/4 speed “slo- mo” playback of the entire flight. The article contains schematics, parts lists and even board masks for etching your own. For more info on this device, see “Transolve Corp.” below. The April, ’94 issue of HPRM has a remarkably detailed article on the “Microbats” project. This is a very large (“M” motor) HPR project that is *very* heavily in
