Quoting "Johnathan Corgan" <jcor...@corganenterprises.com>:
>> $ python ./benchmark_rx.py -f 10M -R A --rx-gain=70 -v -r 500K >> bitrate: 250kb/s > >> $ python ./benchmark_tx.py -TA -f 10M -r 500k -v --tx-amplitude=20000 >> bitrate: 500kb/s > Bitrate while using above command line arguments is 500kb/s at both, transmitter and receiver. > The transmitter and receiver are operating at different rates. Try > changing your transmitter to -r250k to match the receiver. Changing transmitter to -r 250k makes transmitter rate 250kb/s, apparently creates a mismatch between transmitter and receiver. However, in either case, receiver console displays nothing for any packet reception. The outputs include: $ python ./benchmark_rx.py -f 10M -R A --rx-gain=70 -v -r 500K >>> gr_fir_fff: using SSE bits per symbol = 1 M&M clock recovery omega = 2.000000 M&M clock recovery gain mu = 0.175000 M&M clock recovery mu = 0.500000 M&M clock recovery omega rel. limit = 0.005000 frequency error = 0.000000 Receive Path: Using RX d'board A: Basic Rx Rx gain: 70 modulation: gmsk_demod bitrate: 500kb/s samples/symbol: 2 decim: 64 Rx Frequency: 10M $ python ./benchmark_tx.py -TA -f 10M -r 500k -v --tx-amplitude=20000 >>> gr_fir_fff: using SSE bits per symbol = 1 Gaussian filter bt = 0.35 Using TX d'board A: Basic Tx Tx amplitude 20000.0 modulation: gmsk_mod bitrate: 500kb/s samples/symbol: 2 interp: 128 Tx Frequency: 10M $ python ./benchmark_tx.py -TA -f 10M -r 250k -v --tx-amplitude=20000 >>> gr_fir_fff: using SSE bits per symbol = 1 Gaussian filter bt = 0.35 Using TX d'board A: Basic Tx Tx amplitude 20000.0 modulation: gmsk_mod bitrate: 250kb/s samples/symbol: 2 interp: 256 Tx Frequency: 10M -Ahmed
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