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. RO4 R 4 tR# )uQ Roundtrip tests for the orion_sdr Python extension.
Analog tests modulate a tone, demodulate it, and assert that SNR in the
recovered audio exceeds a minimum threshold.
Digital tests perform noiseless bit-exact roundtrips through the full
mod/demod pipeline (mapper → waveform → demod → decider) and assert
perfect bit recovery.
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