I am about 80% done on one for a balloon project using an Arduino Uno, an Argent Data Radio Shield and a $28 2-watt Chinese HT. Should be good for 12-15 hours using an 1,100 mAh LiPO battery for the Arduino power.?
On May 26, 2014, at 11:45, "'Gil Smith' gil@... [FT-60]" <FT-60@...> wrote:
Well, aprs proved to be darned handy for my balloon flights. ?Used a byonics freq-agile transmitter to tx both on .390 and a quiet channel. ?I want to try something remote like an solar-powered weather station or a boat at sea. ?Out in the middle of nowhere where digis can't hear, I could tx on a sat freq if I can hit it. ?If I can't track at the remote site, and just use a fixed antenna, I would at least need to program the days/times of view to tx a packet or two when the sat is overhead. ?Even getting one packet through every day or two would be useful.
I would have a home station (hand-held at first, then maybe motor-driven) to receive and decode the aprs data from the iss/sat. ?Actually anybody could receive and decode it. ?I just take the audio out of the HT, split it to run to headphones and the audio-input of a laptop, and run the soundcard modem by UZ7HO.
Just want to try something different and interesting.
