2011/12/9 John Malsbury <john.malsb...@ettus.com> > Domenic, > > Whenever you are transferring data from a transmitter to a receiver it is > reasonable to use some sort of framing. If you want a quick test, use a > packet encoder and decoder on your transmitter and receiver, respectively. > This will packetize the data and eliminate the continuous flow of "garbage" > data to your file since the decoder will only output data from valid > packets(w/ header + crc are removed). Bit errors will manifest themselves > as a "short file", since bad packets will be discarded. If you run the > block in verbose mode there may also be reporting for when packets are > discarded. > > Set the payload length number in the encoder so you have a known > relationship between the number of bytes missing from the file and the > number of packet errors. > > There are numerous ways to improve this simple test, but this is a start > for you. Also, you may want to perform a more fundamental bit error test. > See error rate block. >
Just a word of warning: If you use the package en/decoder and the BER block , it might just go haywire The BER block cannot regain from a missing frame (which would be the case if the framer threw it away) > > -J > > > > > On 12/09/2011 07:29 AM, Domenic Magazu III wrote: > > All, > I was playing around with the DPSK block provided with GNU Radio. I > was able to get my two USRPs talking to each other. I placed a file sink > on the random source generator (set to transmit 10 random binary digits) > and I'm able to see what was actually sent from that file (command: od -d > filename.bin). I was curious how I go about verifying that the message in > my filename.bin is received as transmitted on the other end? I tried > placing a file sink on the DPSK demod block however because the receiver is > constantly pulling in information my file becomes extremely large and it's > difficult to determine where the message would be amongst the other > 'noise'. Does anyone have any ideas on how to verify my transmitted > message is making it to my receiver? > > Thank you > Domenic > > > _______________________________________________ > Discuss-gnuradio mailing > listDiscuss-gnuradio@gnu.orghttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > Best Paul -- * - - */* -/* * -/* - * */- * * */*/- */- * */* */- * * -/*/- */* - - *- */- - */- -/* -/* */* - * */* - * - * -/- * - */- - -/- -//
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