Tunnel.py printing string of "B"s

I’m trying to run tunnel.py on my Atom PC with a USRP 1 hooked up. I’m
attemping to run it with a Fc of 4 Mhz and the standard values (Basic RX
and
LF Tx daughterboards).
The terminal window is filling up with the "B character and I can’t
determine a) why that’s happening and b) where it’s coming from.
Thoughts?
Thanks.
-William

On Tue, Mar 15, 2011 at 3:03 PM, William C. [email protected] wrote:

I’m trying to run tunnel.py on my Atom PC with a USRP 1 hooked up. I’m
attemping to run it with a Fc of 4 Mhz and the standard values (Basic RX and
LF Tx daughterboards).
The terminal window is filling up with the "B character and I can’t
determine a) why that’s happening and b) where it’s coming from.
Thoughts?
Thanks.
-William

The “B” is part of our “CSMA” MAC layer telling you that it’s blocked
from
transmitting due to high received signal strength in the channel. You
can
play with the threshold level for the detection with the -c option.

Tom