Re: [Discuss-gnuradio] Installing GNU Radio

2009-08-22 Thread Eric Blossom
On Sat, Aug 22, 2009 at 06:54:27PM +0530, praphul chandra wrote: > I am new to GNU Radio. Tried installing from source as per installation > guide but getting following message at the end of ./bootstrap execution: > > *checking for FFTW3F... configure: error: Package requirements (fftw3f >= > 3.0)

Re: [Discuss-gnuradio] message queue

2009-08-22 Thread Eric Blossom
On Fri, Aug 21, 2009 at 11:59:41PM -0700, shesh wrote: > > hi, >i am working on a spectrum sense code. in the following statement > self.msgq = gr.msg_queue(16) > is there any significance for the number 16?does changing this number > affect the performance of the

Re: [Discuss-gnuradio] Benchmark_tx/rx does not work below 500k bitrate

2009-08-22 Thread Srinivas
I faced the same issues and my findings on this was: •Empirically: for Reliable transmission 120 Kbps <= Br (data rate) <= 2 Mbps (For GMSK, Pkt. Size = 1500) •Theoretically: - Maximum Bit rate corresponds to Minimum Decimation Rate and min. samples/symbol value - ADC Sampling Rate = 100 MSampl

Re: [Discuss-gnuradio] Installing GNU Radio

2009-08-22 Thread Josh Blum
your probably missing the fftw development package with headers and such. Run the "yum install..." command on the following page; fftw-devel is the first package: http://gnuradio.org/trac/wiki/FedoraInstall -Josh praphul chandra wrote: I am new to GNU Radio. Tried installing from source as p

Re: [Discuss-gnuradio] dbid from usrp2

2009-08-22 Thread Dimitris Symeonidis
Regarding the frequency ranges, I have created ticket #405 and attached a patch file that corrects these values. Could you please review and tell me if it's ok or if you want me to correct something? Thank you Dimitris Symeonidis "If you think you're too small to make a difference, try sleeping wi

Re: [Discuss-gnuradio] stop_rx_streaming failing (USRP2)

2009-08-22 Thread Michael Leferman
On Aug 21, 2009, at 3:58 PM, Eric Blossom wrote: On Fri, Aug 21, 2009 at 01:53:25PM -0400, Michael Leferman wrote: I'm not familiar with the serial console at all, so no, one is not connected. Can you point me to some documentation on it? Open the USRP2 up and look at the back edge of the b

[Discuss-gnuradio] Installing GNU Radio

2009-08-22 Thread praphul chandra
I am new to GNU Radio. Tried installing from source as per installation guide but getting following message at the end of ./bootstrap execution: *checking for FFTW3F... configure: error: Package requirements (fftw3f >= 3.0) were not met: No package 'fftw3f' found Consider adjusting the PKG_CONFI

[Discuss-gnuradio] loss of packets during reception

2009-08-22 Thread anma
hi, In the problem i am working on, the receiver sends a particular frequency to the transmitter via the ethernet to which both receiver and transmitter get tuned. the transmitter should then transmit the specified number of bytes at that frequency. then the receiver sends the next frequency an

Re: [Discuss-gnuradio] Benchmark_tx/rx does not work below 500k bitrate

2009-08-22 Thread Matt Ettus
udadidd wrote: hi I tried setting the bit rate of benchmark_tx/rx below 500k and the receiver senses no messages below this rate. Is there any specific reason why is it so? I use xcvr2450 boards. and i transmit at 5.1G. The lower your bitrate, the narrower the signal gets. The narrower the

[Discuss-gnuradio] message queue

2009-08-22 Thread shesh
hi, i am working on a spectrum sense code. in the following statement self.msgq = gr.msg_queue(16) is there any significance for the number 16?does changing this number affect the performance of the code? kindly help. -- View this message in context: http://w