I'm trying to sample the 802.11b wireless channels but the USRP2. I'm currently using revision 10689 of Gnuradio. I've added code to bbn_80211b_rx.py to connect the gr_probe_signal_f() to the top block.
To sample the channel, I use gr.probe_signal_f(). Here's the code to connect the block:
self.connect(self.u, self.conv_c2f, self.probe2)
Then I use the gr.probe_signal_f().level() to retrieve the signal in a loop.
I was wondering if this is the fastest way to sample the channel from python. When I compute how long this process takes, it appears that I can get a sample every 8-9 microseconds, which seems a lot slower than what the USRP2 is built to do. Am I sampling the channel in an incorrect way?
I'm running this on a machine with a Intel Quad Q9650 @ 3GHz.