Are there any good (standard) tests for the flex2400, or can anyone tell
me what I’m doing wrong?
I tested the BasicRX and BasicTX boards by plugging a shielded wire
between them, running usrp_oscope.py, and running the
test_usrp_standard_tx script. Signal in, signal out - happiness, after I
matched interpolation rates to eliminate overruns and set up sufficient
I’m trying to test the flex2400 the same way - I stuck a wire from the
TX/RX socket to the RX2 socket, ran usrp_oscope, and ran the standard tx
script. Nothing. I’ve tried different frequencies, playing with the
gain, and all kinds of other things, but I don’t see any change in the
A second question is: With the basic boards as described earlier, I run
[usrp_fft.py -f 1M -d 32] and then run the signal generator
[usrp_siggen.py -f 1M -i 32]. The spectrum I see has a small peak (but,
at 0db) centered at 0 and then a large peak >50db near +0.1MHz. What is
going on here?