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Balloons Radio Projects (view source)
Revision as of 18:49, 17 September 2017
, 18:49, 17 September 2017Created page with "== SSTV: slow scan tv == Sending low resolution pictures very slowly (90s transmisison per pic) using frequency modulated analog signals at low bandwidth. This needs to be p..."
== SSTV: slow scan tv ==
Sending low resolution pictures very slowly (90s transmisison per pic) using frequency modulated analog signals at low bandwidth. This needs to be picked up ourselves with a hand held radio and decoding using a phone app or a computer program. This is a ONE WAY comms method (from balloon to ground ONLY).
== APRS: automated packet reporting system ==
Sending data, position, atltiude, callsign, to receive stations all around the world. This is a low bandwidth DIGITAL signal that is frequency modulated. No need to pick up ourselves, will be automatically uploaded to aprs.fi. This is a ONE WAY comms method (from balloon to ground ONLY).
== ATV:- amateur TV ==
Can be digital or analog (in our case it is analog), amplitude modulated signals, extremely high bandwidth (several MHz), live stream television. Need old huge TV for receiver. This is a ONE WAY comms method (from balloon to ground ONLY).
== (G)FSK, OOK ==
ValBal's long range digital radio system used to send any information we want at variable speeds & bandwidths. Can get anywhere from 500bps to 1Mbps, and anywhere from 1000km to 10km range depending on speed and antenna type. Need personal receiver, demodulator, rpi, to upload to [[HABMC]]. Eventually will be used to have 1Hz refresh rate on HABMC for vb and give active control. This is a partial duplex comms method (bidirectional, but not at the same time).
[[Category:Balloons]]
Sending low resolution pictures very slowly (90s transmisison per pic) using frequency modulated analog signals at low bandwidth. This needs to be picked up ourselves with a hand held radio and decoding using a phone app or a computer program. This is a ONE WAY comms method (from balloon to ground ONLY).
== APRS: automated packet reporting system ==
Sending data, position, atltiude, callsign, to receive stations all around the world. This is a low bandwidth DIGITAL signal that is frequency modulated. No need to pick up ourselves, will be automatically uploaded to aprs.fi. This is a ONE WAY comms method (from balloon to ground ONLY).
== ATV:- amateur TV ==
Can be digital or analog (in our case it is analog), amplitude modulated signals, extremely high bandwidth (several MHz), live stream television. Need old huge TV for receiver. This is a ONE WAY comms method (from balloon to ground ONLY).
== (G)FSK, OOK ==
ValBal's long range digital radio system used to send any information we want at variable speeds & bandwidths. Can get anywhere from 500bps to 1Mbps, and anywhere from 1000km to 10km range depending on speed and antenna type. Need personal receiver, demodulator, rpi, to upload to [[HABMC]]. Eventually will be used to have 1Hz refresh rate on HABMC for vb and give active control. This is a partial duplex comms method (bidirectional, but not at the same time).
[[Category:Balloons]]