Thank you Eric, Josh and Marcus,
  I had edited it to print "" nothing. Now, I am shunting it to /dev/null.

My main reason to ask this question was exactly was Marcus pointed out. I am
seeing lots and lots of "S". When I switch channels to 7 or 3, I do see
fewer compared to 6 or 11.
However, I believe something is wrong here.

here is my bbn_80211_rx.py command execution:

"sudo ./bbn_80211b_rx-B.py -f 2.442G -b"

this should mean using barker code and default decimation rate (of 4) and
samples per baud (25). I am worried now? Could it be just that there are
lots of APs broadcasting few too many beacons?

Thank you once again.

On Thu, Nov 11, 2010 at 5:47 PM, Eric Blossom <[email protected]> wrote:

> On Thu, Nov 11, 2010 at 04:57:56PM -0500, Bishal Thapa wrote:
> > Hello,
> >   I am using USRP2 version of BBN code to look at AP beacons as seen by
> the
> > USRP2 host. There is lots of "S" printing going on, which keeps me from
> > reading AP beacon information from STDOUT (unless I save the output to a
> > file, which I prefer not to). Is there anyway to enforce the printing of
> "S"
> > character to go away. Here is my node's specification:
> >
> >
> >    - BBN Code Location:
> >    https://www.cgran.org/cgran/projects/bbn_80211/branches/usrp2_version
> >    - CPU: Intel(R) Core(TM) 2 CPU E8400 @ 3GHz
> >    - Memory: 4GB
> >    - Hard Disk: 1TB
> >
> > My ubuntu version = 10.04
> > GNuradio version = 3.3.0
> >
> >
> > Thank you in advance for your help.
>
> One of the joys of Free Software is you have the freedom to study how
> the program works, and change it to make it do what you wish.  We
> provide the source code to enable this freedom.
>
> The "S" is written out on line 454 of usrp2_impl.cc
>
> FWIW, it's written to stderr, not stdout, so you could just shunt
> stderr into /dev/null:
>
>  $ my-program 2>/dev/null
>
> Eric
>
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