Re: [Discuss-gnuradio] DBS-RX satellite connection

2009-06-08 Thread Martin DvH
On Sat, 2009-06-06 at 21:57 -0700, Eric Blossom wrote: > On Sat, Jun 06, 2009 at 02:30:05AM -0400, davek wrote: > > I would like to get my usrp conneced to my TVRO satellite dish. I am > > wondering... > > Is the DBSRX daughter card suitable for direct connection to a satellite > > LNB? > > Yes.

[Discuss-gnuradio] SWIG Error: Syntax error in input

2009-06-08 Thread E. Ornelas
Hi! I've been creating a block based on the howto create a block example. But this time something strange happened and I can't seem to find the cause. I already had several input parameters in the altered version of the block, but after adding the variable "frequency" in the input I started gett

SV: [Discuss-gnuradio] Syncrinization of two USRP2s

2009-06-08 Thread Patrik Eliardsson
We have already implemented start_streaming_at(0) (see attached file). The problem is that the FPGA doesn't reset the ddc on PPS so the sample marked with 'time stamp' = 0 is delayed by an unknown fractional number of samples realtive to the output rate. regards Patrik and Ulrika

Re: [Discuss-gnuradio] Syncrinization of two USRP2s

2009-06-08 Thread Douglas Geiger
How are you starting the streaming samples from the two USRP2's? The default start_rx_streaming call (and thus, the standard usrp2_source block) just starts streaming when it receives the command from the host PC. So any delay between when each USRP2 receives the command over the gig-E interface m

[Discuss-gnuradio] USRP2 transmitter spectrum measurements

2009-06-08 Thread Ulrika Uppman
Hi everyone! When transmitting with the USRP2 and the RFX400 daughterboard, we get a very significant frequency spike at the tuned center frequency. The level of the spike is almost as high as the signal level, and it will appear even when transmitting a 0-amplitude sine wave signal. Does anyon

SV: [Discuss-gnuradio] Syncrinization of two USRP2s

2009-06-08 Thread Ulrika Uppman
And again we are back to this misspelled topic. Thank you Matt for your reply. It turned out that we used non synchronous 1PPS and 10 MHz signals after all, and by using a 1PPS synchronous to the 10 MHz we got different results. However, we still don't get the time stamped samples to be perfec

[Discuss-gnuradio] Benchmark_tx GUI Freezing up

2009-06-08 Thread Yu-Hua Yang
Hello I am trying to write a GUI to do the transmissions made with the benchmark_tx.py example. For some reason, after sending the 3rd packet, my GUI would freeze and require force quit. I took code segments from GUI examples and benchmark_tx.py and I am not understanding why the GUI is freezing (

Re: [Discuss-gnuradio] How to remove ISM band filter (RFX900)

2009-06-08 Thread Dennis
Hi The information is on: http://gnuradio.org/trac/wiki/UsrpDBoardRFX900 Greetz Dennis jimmyzhang schrieb: Dear all, I search it for a long while ,consequently nothing useful has been found. Is there anyone who know it can tell me how to do it in detail? I do appreciate it very mu

[Discuss-gnuradio] How to remove ISM band filter (RFX900)

2009-06-08 Thread jimmyzhang
Dear all, I search it for a long while ,consequently nothing useful has been found. Is there anyone who know it can tell me how to do it in detail? I do appreciate it very much. -- View this message in context: http://www.nabble.com/How-to-remove-ISM-band-fi