Re: [Discuss-gnuradio] USRP TX to RX

[Bob Vincent]

I've been trying this for a few days.
Today I hooked up a spectrum analyzer, and found there is a problem in
the outgoing interp filter.
What happens is that over time the signal gets corrupted. The resulting
frequency domain plot eventually looks like a triangle.
I'm trying to save the screen to a floppy disk (this is an old
Rhode-Schwartz, but it still works fine). I'll post when I have
it.

I suspect the decimating filter on the receive side may have a similar
problem. I can't really debug yet because I'm not (yet) a FPGA expert,
but give me time...

Also did a loopback last week replacing the usrp with a named pipe. That
works fine.

At 10:51 AM 2/17/2005, Kimsey Pollard wrote:
> Has anybody tried transmitting
> on the USRP TX, known signals
> and frequencies and feeding them back into the RX for confirmation?
> A test loop of sorts.
>
> Kimsey
>
>
>
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