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[Discuss-gnuradio] Command Line Arguments for usrp transmission and rece
From: |
Ahmed Majeed Khan |
Subject: |
[Discuss-gnuradio] Command Line Arguments for usrp transmission and reception |
Date: |
Mon, 23 Mar 2009 16:07:31 -0400 |
User-agent: |
Internet Messaging Program (IMP) 4.2.2 |
Hi,
I posted my question a couple of days ago but could not get any response, probably because it was an over-datailed mail. Here, I am just posting a part of it,
Is there any problem if I do call benchmark_rx.py and benchmark_tx.py with following command line arguments?
$ python ./benchmark_rx.py -f 10M -R A --rx-gain=70 -v -r 500K
$ python ./benchmark_tx.py -TA -f 10M -r 500k -v --tx-amplitude=20000
While doing so, I am getting following outputs:
I called benchmark_rx on my usrp and left it running,
$ python ./benchmark_rx.py -f 10M -R A --rx-gain=70 -v -r 500K
bits per symbol = 1
M&M clock recovery omega = 2.000000
M&M clock recovery gain mu = 0.175000
M&M clock recovery mu = 0.500000
M&M clock recovery omega rel. limit = 0.005000
frequency error = 0.000000
Receive Path:
Using RX d'board A: Basic Rx
Rx gain: 70
modulation: gmsk_demod
bitrate: 250kb/s
samples/symbol: 2
decim: 128
Rx Frequency: 10M
I then called benchmark_tx on my second usrp,
$ python ./benchmark_tx.py -TA -f 10M -r 500k -v --tx-amplitude=20000
>>> gr_fir_fff: using SSE
bits per symbol = 1
Gaussian filter bt = 0.35
Using TX d'board A: Basic Tx
Tx amplitude 20000.0
modulation: gmsk_mod
bitrate: 500kb/s
samples/symbol: 2
interp: 128
Tx Frequency: 10M
This shows packets are apparently being transmitted. However when I checked the console of second machine for benchmark_rx, no packet notifications are being displayed.
My Questions:
1- Is the USRP transmitting data?
2- Why is it not receiving this data if it is transmitting?
-Ahmed
- [Discuss-gnuradio] Command Line Arguments for usrp transmission and reception,
Ahmed Majeed Khan <=