+- ARCHIVE: Australian Ham Radio Discussion Forum ( AHRDF ) (https://www.ahrdf.net/forum)
+-- Forum: SPECIAL INTERESTS (https://www.ahrdf.net/forum/forum-30.html)
+--- Forum: Satellites & Balloons (https://www.ahrdf.net/forum/forum-24.html)
+--- Thread: Telecommand transmission (/thread-641.html)
Telecommand transmission - VK2FAK - 21-09-2018
Hi All..
How do you go about sending command signals to a LEO satellite. using 9k6 ax.25 gfsk .
What radio is required, and software to do the job......?
Never done it here, and at this stage don't have a radio that would do 9k6 baud.
The reason I ask, the problem came up again yesterday with a LEO satellite, which needed a reset, it fixed itself as far as I know, But that's about 3 times now, so may be an idea to set-up for it...
John
RE: Telecommand transmission - VK4ADC - 21-09-2018
Some web pages to look at - open in this order:
http://www.pe0sat.vgnet.nl/decoding/satellite-telemetry/modes/
http://www.amsat.org/articles/g3ruh/109.html
http://uz7.ho.ua/packetradio.htm
https://wb4son.com/wpblog/?p=2309
RE: Telecommand transmission - VK2FAK - 21-09-2018
Hi
Thanks for those, I have most of the decoders needed for current sats, just not sure on the TX side of things. As the last sat issue it was required to upload a few HEX codes and the destination callsign