I just buy two sets of RFX900 a few days ago. now I can run
and usrp_fft.py normally now. But when I try to run usrp_nbfm_ptt.py for
full duplex test, I can hear nothing in both sides. I check the source
and find self.set_transmit(False) in the init of ptt_graph, so I
it to self.set_transmit(True) in PC_A with microphone input and leave it
False in PC_B with speaker output. Now there are some noise output in
but still don’t have any voice ouput come from my input from microphone
PC_A. I am try to search in archives of this maillist and read the
codes by myself, but still have not find the answer. Could anyone help
for below question:
- Do I need to change the usrp_nbfm_ptt source code to test RFX900? If
how to change for simplex and duplex respectively?
- I see rx_subdev_spec, tx_subdev_spec, audio_input and audio_output
options may be detect by program automtically if we don’e spectify, is
right? I also find side A seems to be first priority if automatically
detected, but why there are still signal input and output in side B at
- How to set parameters in command line to run usrp_nbfm_ptt.py, my
setting is: ./usrp_nbfm_ptt.py -f 900e6 for both PC_A and PC_B.
- after showup the gui, I can’t move the sliders in the control panel,
although there are sliders there. Is it normal?
Thank you very much!