[aprssig] Digital two-way Radio communication in emergency situations
info at sartrack.co.nz
Mon Sep 8 02:11:40 CDT 2014
Thanks everyone for their input.
I am still looking for a digital transmission unit which can transmit
data in a higer modulation scheme.
I actually just found an interesting company who sells just that, but I
assume this gear is going to be very expensive. They use OFDM on Time
Division Multiplex 256-QAM modulation, which enables them to transmit up
to 56Kb on a 12.5 Kc channel, but it would require a huge amount of FEC.
I would think something like 8PSK would be more suitable for what I have
Anyway, its interesting stuff.
SARTrack Developer and CEO
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