On Fri, Jul 25, 2008 at 09:45:55AM -0700, kaleem ahmad wrote: > > I am using RFX2400 daughter boards, > VERT2450 antenna which I received with my USRP from ettus, > I have tried different bitrates from 40kbps - 100kbps but got same results, > I am not observing any overrun or underrun, > I am working in office environment where I dont have any interference > (almost), > Gain = 0, but I have tried other values [0-20]. > > Thanks
What version of GNU Radio are you using? There is no FSK code in the trunk nor in the latest tarball. I removed it long ago because the code that was there didn't work and there was no one maintaining it. You can save yourself and the rest of us a lot of trouble by using the latest code either from a tarball or the svn trunk. Since you appear to be somewhat of a beginner, I suggest you start with a tarball: http://gnuradio.org/trac/wiki/Download Eric > George Nychis wrote: > > > > > > > > kaleem ahmad wrote: > >> If someone has ever measured Quality of service of received data (using > >> any > >> modulation and daughter board but preferably RFX2400) in terms of packet > >> loss rate/Bit Error Rate (or any other metric) with USRP & GNU Radio > >> without > >> any error correction (ARQ,FEC) mechanism (but no problem if you have with > >> error correction mechnism) then please share your results here. > >> > >> Actually without and error correction mechanism, with FSK, I am getting > >> almost half of my data lost. I was thinking that it may be improved by > >> adding some error correction mechanism. Or this high data loss is because > >> of > >> some implementation errors...What do you say ?????????? > >> > > > > We have no idea what your actual setup is, so we have no clue whether or > > not error correction will truly help you. > > > > It's like saying my computer crashed, and asking if a new hard drive > > will help. Who knows, it all depends :) > > > > Some questions that might help: > > - are you using coax? > > - are you using antennas? > > - what kind of gain are you using? > > - what kind of physical conditions? > > - what bitrate are you using? > > - are you seeing underruns at your receiver? > > > > - George _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
