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This a framework to test new ideas in transmission technology. Actual development is a LDPC-coder in

LDPC_perf
=========

 Instead of sending a clear-text stream, this radio sends a random
sequence through the LDPC-coder. This allows for measuring the BER
of the system.

 When the radio is started, you can chose
File-> Plot XY
and click on the module "ldpc_decode", then chose "SNR" and OK;
after that click on "test_data_rcv", then chose "BER" and OK.
 The radio is supposed to "sweep" over a region of -10dB SNR to about
5dB SNR, so that you can see the BER (Bit Error Rate) at different
SNRs.