Hello, This is a radio problem I can not explain:
Transmitter: USRPN210, BPSK, linkrate = 100kbps, TX-gain=15 Receiver: USRPN210, Rx-gain=15 TX-RX: 1.5m. Below is what the I/Q samples I get, after timing synchronization. There is no center frequence offset as I share the same clk for tx and rx. It looks like the if the I or Q amplitude is low, a frequency leakage is displayed in this picture. I have used the tune_request for both the tx and rx to the same offset of sample rate. And I have monitored the radio spectrum by measuring the noise, no interference is found. Really confused for this observation. -- Alex, *Dreams can come true – just believe.*
<<attachment: iq.png>>
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