HF telemetry data will be plotted on to the Spacenear.us map. To contribute you'll need a HF radio which can do SSB on 40m, an aerial, a computer running Windows/Linux/Mac OSX and some software: dl-fldigi. Dl-fldigi is an adapted version of the excellent soundcard decoding software fldigi, the modifications allow for telemetry strings to be detected, validated and uploaded to a central server where they are then plotted onto a map.
Currently the plan is for the transmitter to tx on 7.1035 MHz which means that you should tune to 7.102 Mhz on USB mode. The transmitter will alternate between RTTY and DominoEX - dl-fldigi can autoconfigure this for you, all you need to do is press the switch button on the right hand side of the interface.
Guide and images adapted from the UKHAS wiki
Serial Format: 4800, 8, N, 1
Wait for “!” char from HF TX, then send serial command. Start command with $$, end with *
ASCII Hex Comma delimited 8-bit values.
Telemetry Data Example:
Command to Transmit Lat/Lon/Alt/Time Now:
Set telemetry data rate high ( every 1 minutes ) :
Set telemetry data rate medium: (every 10 minutes):
Set telemetry data rate low ( every 1 hour ):
DO NOT TRANSMIT ANYTHING FOR 2 minutes (Power draw constraint when sat txing):