Hello,
I have been thinking about this. I have access to two TETRA terminals.
The down side is I am beginner in Gnu Radio and DSP in general.
Is the π/4 DQPSK modulation really supported by Gnu radio? Any examples
about this?
Grzegorz Suder wrote:
Hello,
I've looked through Wiki and discussion archives but I haven't found
answer for my question. Is there any working code for Gnu Radio that
is able to receive Tetra subscriber (not base station) signal and
convert it into bitstream? I believe that demodulation is already done
(DQPSK as I know) but there is still timing and slot separation issue.
Seems that there were attempts to introduce support for inband
signaling for Gnu Radio but last information I've found are from 2007.
Regards,
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