Hello,
I have a straightforward setup using gnuradio and a USRP B100 to
transmit
CW to an E100 (SBX and WBX daughterboards, respectively). I have
verified
the RF output of the B100 with a spectrum analyzer and the receive
capability of the E100 with a signal generator, but when I connect the
two
directly with coax I see a strange pattern on the receiver FFT (see
attachment), when I’m expecting a spike at the center frequency. The
receive window only shows 1MHz of bandwidth but I’ve looked at the
spectrum
around the center frequency and the spike is nowhere to be found. My
sample
rates are 500k
Has anyone else seen this before? Suggestions would be very welcome.
Thank you!
Rob