USRP/RFX2400 Question

I recently purchased a USRP and RFX2400 daughterboard and am slowly
learning the ropes. Right now I’m trying to acquire 802.11b signals.
When I run “usrp_oscope.py” the daughterboard doesn’t seem to be sensing
any signals at all even though there are numerous ones in the immediate
vicinity. I have the corresponding antenna for the 2400 series but have
not hooked it up. Would that make a difference? I was also thinking that
maybe the signals would not be visible on the oscope, so I could write
some python code to acquire data every time unit and print it to a text
file and then analyze it. Any ideas on what my problem could be? Thanks
in advance.


Swapneel S. Ukhalkar
BMW Enthusiast | Audiophile
BSEE UC Santa Barbara
[email protected]

On Mon, Aug 07, 2006 at 02:30:59AM -0700, Swapneel S. Ukhalkar wrote:

I recently purchased a USRP and RFX2400 daughterboard and am slowly
learning the ropes. Right now I’m trying to acquire 802.11b signals.
When I run “usrp_oscope.py” the daughterboard doesn’t seem to be sensing
any signals at all even though there are numerous ones in the immediate
vicinity. I have the corresponding antenna for the 2400 series but have
not hooked it up. Would that make a difference? I was also thinking that
maybe the signals would not be visible on the oscope, so I could write
some python code to acquire data every time unit and print it to a text
file and then analyze it. Any ideas on what my problem could be? Thanks
in advance.

Try selecting “Auto” for the trigger option and/or press the
50% (trigger level) button. Yes, somebody ought to change the
default.

Eric

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