Hello Bastian, Sorry for late response. I am attaching the files for your reference. There are 2 grc files
1. wifi_zigbee.grc : wifi and zigbee loopbacks are running in parallel >> works good 2. wifi_zigbee_interference.grc : Here I interpolate the zigbee output by 5, feed to channel, add to 20 MHz wifi signal. Added signal is fed directly to wifi receiver however I decimate it by 5 before feeding it to zigbee receiver. I see the following on the terminal for the 2nd grc file. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [UHD] linux; GNU C++ version 5.4.0 20160609; Boost_105800; UHD_4.0.0.rfnoc-devel-283-g7ff43262 MAPPER: encoding: 0 set_min_output_buffer on block 9 to 397056 set_min_output_buffer on block 11 to 397056 set_min_output_buffer on block 13 to 397056 set_min_output_buffer on block 14 to 397056 set_min_output_buffer on block 16 to 397056 sender started set_min_output_buffer on block 58 to 96000 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ After that nothing happens, just the cursor keeps blinking. wifi_zigbee.grc <http://gnuradio.4.n7.nabble.com/file/n64483/wifi_zigbee.grc> wifi_zigbee_interference.grc <http://gnuradio.4.n7.nabble.com/file/n64483/wifi_zigbee_interference.grc> -- View this message in context: http://gnuradio.4.n7.nabble.com/Running-gr-ieee-802-11-and-gr-ieee-802-15-4-under-same-flowgraph-interference-and-co-existence-tp64474p64483.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio