Re: [Discuss-gnuradio] [USRP2] - BBN 802.11b project - transmitter and receiver issue

[Juan Ramon Gutierrez Agullo]

Browsing the code and testing, I've found the way to run propertly BBN
examples.
Modifying the method SENDPKT_TO_PHY from the "bbn_80211b_pkt.py" file,
not allowing shor preamble (short_preamble=0), when I transmit "Hello
World" as a payload, receiver can detect propertly the packets.

Usage:
On one machine, run the TX ./bbn_80211b_tx.py --spb 4 -b -f 2.452G

On other machine, run the RX ./bbn_80211b_rx.py --spb 4 -b -f 2.452G -v

Result (RX side):

adc frequency =  100000000
decimation frequency =  4
input_rate =  25000000
gain =  46.0
desired freq =  2452000000.0
baseband frequency 2451999855.04
dxc frequency -144.958496094
>>> gr_fir_ccf: using SSE
Recieved header!
  signal: 0x0A
  service: 0x04
  length: 0x0170
  crc: 0xA25C
Calculated crc: 0xA25C
Packet Length: 46 bytes.
64 0 0 0 255 255 255 255 255 255 0 28 191 144 4 221 255 255 255 255 255
255 144 69 0 0 1 8 2 4 11 22 12 18 24 36 50 4 48 72 96 108 51 37 242
150 
PKT: len=42, rssi=-96, src=00:1c:bf:90:04:DD, time=3991936, rate=1 Mbps
Payload:  @����������������E$20H`l

(...)

I just want to post the solution I've found.
-- 
Juan Ramon Gutierrez Agullo <address@hidden>