[Discuss-gnuradio] Questions on interference!

[Brook Lin]

Hi All,

I have two transmitters and one receiver now. The 1st transmitter is
transmitting a video file, and the receiver is receiving correctly. Then,
the 2nd transmitter is working to transmit a different video file to
interfere with the 1st transmitter. 

1st TX: ./benchmark_tx.py -f 400M --tx-amplitude=5000 -M 4 -r 100e3 -v -T A
-s 4000 --from-file video1.avi
RX: ./benchmark_rx.py -f 400M -r 100e3 -R A -v

When both TX and RX work, and the received video can be played at the RX
side, the 2nd TX starts to interfere.

2nd TX: ./benchmark_tx.py -f 400M --tx-amplitude=10000 -M 1 -r 100e3 -v -T A
-s 4000 --from-file video2.avi

However, the 2nd TX doesn't interfere with the 1st TX. At the receiver side,
I still can receive video1 clearly. Theoretically speaking, the 2nd TX
generates stronger signal than 1st TX dose. It should interfere the 1st TX
and make the video received at the RX side not clear or stop. Can anyone
help me on this problem? 

Thanks,
Brook Lin
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