[Discuss-gnuradio] Topblock lock and unlock bug?

2009-02-15 Thread Kieran Brownlees
Hello all, Seem to be experiencing an unusual bug with lock() and unlock(). The example code can be found at http://pastebin.com/m1dd34f80 The problem seen is first time around the loop it works perfectly, the usrp source is created connect then destroyed. The second time around the loop however

Re: [Discuss-gnuradio] Filtering USRP FM Reception

2009-02-15 Thread Francesco B.
Addendum: Apparently it was just a really, really long list of floats that was a part of a larger away message, but I couldn't scroll up enough when the terminal wasn't running full-screen. Here's the error message: Traceback (most recent call last): File "usrp_wfm_rcv_filt_nogui.py", line 157,

[Discuss-gnuradio] Filtering USRP FM Reception

2009-02-15 Thread Francesco B.
Hey all, I was wondering, is there anything in particular that's peculiar about using a filter to isolate one sine wave out of three that are being transmitted over FM? I've attempted adding another FIR (optfir) filter post-demod, but connecting it to the pipeline produces a long list of small fl

[Discuss-gnuradio] Complex-->real

2009-02-15 Thread Marcus D. Leech
I have a complex stream that I've bandpass filtered so that it only contains the positive frequencies. I want to turn this into a real signal. In the reverse direction, you use a hilbert transform, right? But how do you do it in the reverse direction? Do I just do a complex-to-float, and tak

Re: [Discuss-gnuradio] Using the USRP LFRX daughterboard to receive a complex baseband signal (I+Q)

2009-02-15 Thread Matt Ettus
Josh Blum wrote: The current USRP API does not support receiving complex signal (I on RXA and Q on RXB) from LFRX and BasicRX boards. At least not in an easy way... In the future, the USRP API will support complex samples, and "usrp_dual_source_x" will have an option called antenna: "RXAB"

Re: [Discuss-gnuradio] Using the USRP LFRX daughterboard to receive a complex baseband signal (I+Q)

2009-02-15 Thread Josh Blum
The current USRP API does not support receiving complex signal (I on RXA and Q on RXB) from LFRX and BasicRX boards. At least not in an easy way... In the future, the USRP API will support complex samples, and "usrp_dual_source_x" will have an option called antenna: "RXAB" Any word on this fr

Re: [Discuss-gnuradio] Newbie need help with installing gnuradio 3.1.3

2009-02-15 Thread Dan Halperin
On Feb 15, 2009, at 12:11 PM, Chris Stankevitz wrote: Pete, How did you solve this problem: While running ./bootstrap, I am getting the following error: [r...@fodora gnuradio-3.1.3]# ./bootstrap gr-trellis/doc/Makefile.am:51: `%'-style pattern rules are a GNU make extension AFAIK it's not

[Discuss-gnuradio] Using the USRP LFRX daughterboard to receive a complex baseband signal (I+Q)

2009-02-15 Thread Einar Thorsrud
Hi all, I am having difficulties understanding how to combine the two signals on the RXA and RXB connectors on the same LFRX-daughterboard to one single complex signal (I+Q) using the "usrp_dual_source_x" block. The best would be to receive a float from each, and then combine the two signals

Re: [Discuss-gnuradio] Newbie need help with installing gnuradio 3.1.3

2009-02-15 Thread Bob McGwier
http://gnuradio.org/trac/wiki/BuildGuide When you have followed the instructions for your OS to the letter. Come back. Bob Chris Stankevitz wrote: Pete, How did you solve this problem: While running ./bootstrap, I am getting the following error: [r...@fodora gnuradio-3.1.3]# ./bootstrap

Re: [Discuss-gnuradio] Newbie need help with installing gnuradio 3.1.3

2009-02-15 Thread Chris Stankevitz
Pete, How did you solve this problem: > While running ./bootstrap, I am getting the following error: > [r...@fodora gnuradio-3.1.3]# ./bootstrap > gr-trellis/doc/Makefile.am:51: `%'-style pattern rules are a GNU > make extension Chris ___ Discuss-gn

[Discuss-gnuradio] Need help with USRP simulation test

2009-02-15 Thread Pete Kay
Hi, I am running siggen and oscope test with USRP1. I am expecting a smooth sine waveform with this: c[r...@fodora usrp]# usrp_siggen.py --sine -f 1e6 -i256 Using TX d'board A: But I am getting some error in oscope.py and the attached oscope output does not give me the expected waveform [r

Re: [Discuss-gnuradio] Newbie need help with installing gnuradio 3.1.3

2009-02-15 Thread Josh Blum
Pete Kay wrote: Hi Thank you for all your help. I got gnuradio installed now. To test it with my USRP boards, I am having a few questions: 1. I followed the example and tried to run the ./usrp_oscope.py, but the file is not under: [r...@fodora usrp]# ls /usr/local/share/gnuradio/examples

Re: [Discuss-gnuradio] Newbie need help with installing gnuradio 3.1.3

2009-02-15 Thread Pete Kay
Hi Thank you for all your help. I got gnuradio installed now. To test it with my USRP boards, I am having a few questions: 1. I followed the example and tried to run the ./usrp_oscope.py, but the file is not under: [r...@fodora usrp]# ls /usr/local/share/gnuradio/examples/usrp fm_tx_2_daught

Re: [Discuss-gnuradio] Newbie need help with installing gnuradio 3.1.3

2009-02-15 Thread Josh Blum
Pete Kay wrote: Hi, I am just getting started with gnuradio on Fedora 9. While running ./bootstrap, I am getting the following error: [r...@fodora gnuradio-3.1.3]# ./bootstrap gr-trellis/doc/Makefile.am:51: `%'-style pattern rules are a GNU make extension It could just be a warning, can yo