On Tue, May 25, 2010 at 10:03:32AM -0700, Juan Quiroz wrote: > I'm trying to connect two computers using tunnel.py example but it fails > with a message uOBBBB, I'm working with Ubuntu > 9.04, openSUSE 11.1 and GNU radio 3.2.2. Everything was fine when I did > it with GNU radio 3.1.3 and both computers with openSUSE 11.1Please can > somebody tell me what BBBB means? > > JhonQ
A quick look at the code reveals that it means that the transmitter has backed off because it detected carrier. while 1: payload = os.read(self.tun_fd, 10*1024) if not payload: self.tb.send_pkt(eof=True) break if self.verbose: print "Tx: len(payload) = %4d" % (len(payload),) delay = min_delay while self.tb.carrier_sensed(): sys.stderr.write('B') time.sleep(delay) if delay < 0.050: delay = delay * 2 # exponential back-off self.tb.send_pkt(payload) Try changing the carrier threshold using the -c command line option. Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio