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From: | Rama V |
Subject: | Re: [Discuss-gnuradio] Fwd: Re: Transmission error |
Date: | Mon, 21 Sep 2015 09:48:28 -0500 |
I have tried the following commands in the terminal
Sender : benchmark_tx.py -f 2.435G -r 250k
Receiver : benchmark_rx.py -f 2.435G
But the data packets are not being sent correctly. I have been receiving the packets as ok=false. I have tried modifying benchmark python scripts. Can I do the modification of those scripts or evrything needs to be given in the command line. Please excuse me as I am slightly unable to understand. Thanks
Regards,
Dave
Thanks for the reply Michael. I will look into that as you have advised. So all you say is I need to change and play with the sampling rates and --tx-amplitude until the received packet becomes 'n_rcvd=1' and CRC check changes to 'ok=true' from the narrowband folder?Regards,DaveOn Fri, Sep 18, 2015 at 12:40 PM, Michael Dickens <address@hidden> wrote:Hi Dave - I'm thinking that you are confusing "--samples-per-symbol" for the sample rate. I think the option you're looking for is "-r". Look at the "--help" for those examples when you get a chance. - MLDOn Thu, Sep 17, 2015, at 02:01 PM, Rama V wrote:Thank you very much Michael. I will follow up on your advice. I am sorry that I wasn't able to understand some parts in GNU RADIO and didn't specify enough information. Regarding the question, I have been doing the benchmark in the digital/ narrowband/ folder. The exact commands I have been working on are
Sender: benchmark_tx.py -f 2.435G --tx-gain 25 --samples-per-symbol 250000
Receiver: benchmark_rx.py -f 2.435G
When I give 250kS/s, my laptop freezes. USRP is XCVR2450. So I started to give less Samples like 50kS/s so that they communicate with each other without errors. But I couldn't figure out the solution to that. So I just have a doubt whether I need to modify benchmark scripts or is it enough for the parameters I give in the command line. Thanks for the help. Please advice
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