On Thu, Oct 09, 2008 at 01:59:16PM -0400, Kyle Pearson wrote:
Here is some more information I’ve figured out while playing around with this:
-Changing the center frequency freezes the GUI, however if I enter a
value in the frequency text box and then change the decimation it does
not freeze. It does not change the center frequency though (this is
why I thought it was working before, I had no signal going into the
radio when I first tried it out, so I couldn’t see that the
downconversion frequency hadn’t changed)
-Changing the gain does not do anything
As was noted on this list earlier this week, the parameters are
not currently changable in the GUI. If you’re so inclined, please
debug the problem and submit a patch.
I’m also still having the issue with not being able to connect to
connect to my network now that the USRP2 is set up.
We recommend a dedicated GigE ethernet port on the host and a direct
connect (no switch) between the USRP2 and the host.
If you have any suggestions or ideas what may be causing these
problems, please let me know.
We use ethernet PAUSE frames to flow control the host. It’s possible
that if there’s a switch in the path, that it’s not dealing with them
properly. It’s not uncommon. Hence our recommendation for a direct
Note too that the USRP2 is capable of totally swamping medium
peformance systems. 800Mb/s (decim=4) is probably way too much for
many systems. Try decim=16.