You can select the modulation to use with the -m <modulation> command
line argument. The legal values for <modulation> are gmsk, dbpsk and dqpsk.
-* benchmark_tx.py: the receiver half of benchmark_tx.py.
+* benchmark_rx.py: the receiver half of benchmark_tx.py.
Command line arguments are pretty much the same as rx. Works well
with a USRP and RFX transceiver daughterboards. Will also work
with TVRX daugherboard, but you'll need to fiddle with the gain. See