I have code that modulates and transmits a DBPSK signal, and code that
receives and processes the signal. Both sides work fine on the USRP1.
got my hands on some USRP2’s, I modified my code such that it works on
new hardware. However, the spectral output of the USRP2 is decidedly
different than the output of the USRP1. More specifically, the power
distribution of various frequencies is different, and there is
more out-of-band power than with the USRP1. I am using RFX dboards.
that I am transmitting the same, synthesized waveform stored on the hard
disk, I would expect (nearly) identical spectral output, but broadened
response to the increase in sample rate. Is is possible that the
on the U2’s DAC is less aggressive than that of the U1’s? Is there some
other obvious explanation?