Sunday, August 30, 2015

[Discuss-gnuradio] Gain and Sample Rate Setting

Hello all,
I have XCVR2450 USRP's. I have been trying to send the data between two
USRP's. I have made some changes to the python code in uhd_interface.py
where I have changed the gain to 25 and set the frequency for
transmitter and receiver to 2.435G. I have run uhd_fft program only to
find that my sample rate of 50k is not being supported. I am unable to
know how to set the sample rate and sps for my device. Because of that,
I have been receiving some errors like

ok = False pktno = 88 n_rcvd = 1 n_right = 0
ok = False pktno = 105 n_rcvd = 2 n_right = 0
ok = False pktno = 49227 n_rcvd = 3 n_right = 0
ok = False pktno = 117 n_rcvd = 4 n_right = 0
ok = False pktno = 121 n_rcvd = 5 n_right = 0
ok = False pktno = 122 n_rcvd = 6 n_right = 0
ok = False pktno = 126 n_rcvd = 7 n_right = 0

I also have attached a graph of uhd_fft program. I think I have got a
wave which represents a transmission gain of 25 and received gain of 15
because I have specified it in the uhd_interface.py program. Please
advice as to where I can change these settings so that I might be able
to receive packet in a right order. Thank you

Regards,
Ben

Attachments:
http://www.ruby-forum.com/attachment/11064/Screenshot_from_2015-08-27_15_01_49.png


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