On 05/23/2018 03:13 PM, Martin K via USRP-users wrote:
Hello,
I have B210 hooked up to a signal generator putting out BPSK.
When I look at the signal on a signal analyzer I see what I expect:
the baseband, synchronized 'I' signal looks like a square wave. (Fig.1)
When I capture the signal with the B210 and view it in GNU Radio or
MATLAB, the square wave is not square, it turns into a decaying square
(a sawtooth you could say) (Fig 2)
It looks as if the baseband is being highpass filtered. I don't
understand where this response could be coming from. I hope there is a
simple explanation.
I considered that the signal may be too powerful, however it is around
-25dBm and I notice that the effect does not change over different
signal power levels.
I appreciate any help - thank you.
--
Martin K.
YOu're going to have to tell us a bit more about your setup.
You're generating BPSK *baseband* and sending it to the USRP? Or you're
generating a BPSK signal at some RF frequency?
When you say you "capture" the signal, exactly how to you capture the
signal?
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