Hi Mahongroo, You wrote > help I think we'd like to help you if you could explain with what you'd need help :)
Best regards, Marcus On 20.09.2015 11:30, mahongroo wrote: > help > > > 发自网易邮箱手机版 > > > On 2015-09-20 00:00 , discuss-gnuradio-requ...@gnu.org > <mailto:discuss-gnuradio-requ...@gnu.org> Wrote: > > Send Discuss-gnuradio mailing list submissions to > discuss-gnuradio@gnu.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > or, via email, send a message with subject or body 'help' to > discuss-gnuradio-requ...@gnu.org > > You can reach the person managing the list at > discuss-gnuradio-ow...@gnu.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Discuss-gnuradio digest..." > > > Today's Topics: > > 1. Re: Fwd: Re: Transmission error (Michael Dickens) > 2. Re: Fwd: Re: Transmission error (Rama V) > 3. ofdm demod could not demodulate (gnoob16) > > > ---------------------------------------------------------------------- > > > Message: 1 > Date: Fri, 18 Sep 2015 13:40:53 -0400 > From: Michael Dickens <michael.dick...@ettus.com> > To: Rama V <ramav...@gmail.com> > Cc: discuss-gnuradio@gnu.org > Subject: Re: [Discuss-gnuradio] Fwd: Re: Transmission error > Message-ID: > > <1442598053.2651508.387507145.0a8a6...@webmail.messagingengine.com> > Content-Type: text/plain; charset="iso-8859-1" > > 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. - MLD > > On 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 > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > > <http://lists.gnu.org/archive/html/discuss-gnuradio/attachments/20150918/50c85b24/attachment.html> > > <http://lists.gnu.org/archive/html/discuss-gnuradio/attachments/20150918/50c85b24/attachment.html%3E>; > > > ------------------------------ > > Message: 2 > Date: Fri, 18 Sep 2015 14:21:43 -0500 > From: Rama V <ramav...@gmail.com> > To: Michael Dickens <michael.dick...@ettus.com> > Cc: "discuss-gnuradio@gnu.org" <discuss-gnuradio@gnu.org> > Subject: Re: [Discuss-gnuradio] Fwd: Re: Transmission error > Message-ID: > > <cah3njp_kx_qhtkmbn4vvvrkoqcxqe2u7ad9+rmnisp1hq_8...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > 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, > Dave > > On Fri, Sep 18, 2015 at 12:40 PM, Michael Dickens > <michael.dick...@ettus.com > > 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. - MLD > > > > On 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 > > > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > > <http://lists.gnu.org/archive/html/discuss-gnuradio/attachments/20150918/717b6276/attachment.html> > > <http://lists.gnu.org/archive/html/discuss-gnuradio/attachments/20150918/717b6276/attachment.html%3E>; > > > ------------------------------ > > Message: 3 > Date: Sat, 19 Sep 2015 02:26:56 -0700 (MST) > From: gnoob16 <deuxmilledix.fres...@yahoo.com> > To: Discuss-gnuradio@gnu.org > Subject: [Discuss-gnuradio] ofdm demod could not demodulate > Message-ID: <1442654816712-56156.p...@n7.nabble.com> > Content-Type: text/plain; charset=us-ascii > > <http://gnuradio.4.n7.nabble.com/file/n56156/transmit.png> > <http://gnuradio.4.n7.nabble.com/file/n56156/transmit.png%3E>; > > hi this is my ofdm transmitter... the thing here is that the ofdm > signal > could not get demodulated at all... the qt frequency sink displays > nothing > when connected after the ofdm demodulator... > > im using zedboard with the adi fmcomms... > > thanks! > > > > -- > View this message in context: > > http://gnuradio.4.n7.nabble.com/ofdm-demod-could-not-demodulate-tp56156.html > > Sent from the GnuRadio mailing list archive at Nabble.com. > > > > ------------------------------ > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > End of Discuss-gnuradio Digest, Vol 154, Issue 22 > ************************************************* > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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