[Discuss-gnuradio] Sending data to gnuradio

2010-07-15 Thread Garrett Wenger
Hi all, I am trying to use a use a file source block to read data from a fifo so that eventually I can process data sent by another computer. I wrote a simple c program to write data to the fifo and I have verified that it works, but I don't see any output on gnuradio's scope when I try to send dat

Re: [Discuss-gnuradio] USRP2 and Data Rate

2010-07-08 Thread Garrett Wenger
2010 at 2:53 PM, Matt Ettus wrote: > On 07/07/2010 11:43 AM, Garrett Wenger wrote: > >> I am not quite sure what data rate I am getting. I've been using a >> signal analyzer to receive and demod what I'm transmitting and it can >> generally pick up the bit sequenc

Re: [Discuss-gnuradio] USRP2 and Data Rate

2010-07-07 Thread Garrett Wenger
reference, what is bad about having a high samples per symbol value? -Garrett On Wed, Jul 7, 2010 at 12:41 PM, Matt Ettus wrote: > On 07/07/2010 08:32 AM, Garrett Wenger wrote: > >> Hi all, >> A few days ago I made a simple program using grc to fsk modulate and >> transmi

Re: [Discuss-gnuradio] USRP2 and Data Rate

2010-07-07 Thread Garrett Wenger
interpolation has to be between 4 and 512, the lowest possible values that I could use to get a 10kbps would be 80 samples per symbol with 500 as my interpolation rate. Thanks, Garrett On Wed, Jul 7, 2010 at 11:45 AM, Marcus D. Leech wrote: > On 07/07/2010 11:32 AM, Garrett Wenger wrote: > &g

[Discuss-gnuradio] USRP2 and Data Rate

2010-07-07 Thread Garrett Wenger
Hi all, A few days ago I made a simple program using grc to fsk modulate and transmit a pn sequence at 10kbps. Since I was using a USRP1, I set my samples per symbol to 25 and the interpolation to 512 to get this data rate. The place I work at just received a couple USRP2's, so I am trying to get

[Discuss-gnuradio] CPFSK modulation and bit rate

2010-06-15 Thread Garrett Wenger
Hello, I'm a newcomer to the whole world of SDR and actually radio in general. For the past few days I've been reading through messages posted here and the source code behind gnuradio, but I haven't been able to find exactly what I'm looking for. Right now, I am simply trying to CPFSK modulate an