Hi My goal is that when the USRP N200 R4 is transmitting packets, the receive antenna on it's own daughterboard should not receive the transmitted packets.
For this, I am trying to zero out the samples of packets(GMSK) received by the RX2 antenna (on RFX900 daughterboard ) precisely for the duration of time when the TX/RX antenna is transmitting packets, by modifying the FPGA image. There are certain subtle points I need to take care of: 1) My understanding is that 'tx_run' will give a '1' for the time duration between 'sob' and 'eob' as encountered by the FPGA. Am I right or wrong ? 2) If I try to zero out the incoming received samples at RX2 during this duration(when tx_run=1), it will not solve the purpose because the time by when the packet/signal is actually transmitted in air by the TX/RX antenna, by that time the zeroing out at RX2 would have stopped (as tx_run is no longer '1'). Am I right or wrong ? What would be the best way to do this? Any suggestions would be appreciated. Amy
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