Re: [Discuss-gnuradio] gr_frequency_modulator_fc.cc: unknown function trunc()

2005-03-07 Thread Berndt Josef Wulf
G'day, thanks for supplying the man page on trunc(). This function is indeed missing in NetBSD - not sure why. Anyhow, I think I've found a solution that works and may be acceptable for inclusion into the source tree for platforms that lack this functionality. Find patch below that checks for

[Discuss-gnuradio] USRP - FC3 usb transfer rate tx. vs. rx.

2005-03-07 Thread Greg Spanel
I'm running Fedora core 3 on several different machines including one with the Intel motherboard with the fast southbridge. The tx. transfer rate on all of these machines is 6meg/sec. using test_usrp_standard_tx. The rx. rate is 32meg/sec., however. I found that if you comment out line 250 in tes

[Discuss-gnuradio] FYI: GnuRadio + Suse-9.2

2005-03-07 Thread Berndt Josef Wulf
G'day, The Australian APC magazine included a DVD with the FTP version of Suse 9.2 and I couldn't help myself to install and build GnuRadio using a spare partition on my laptop. After downloading a number of missing RPMS, mostly development utilities and files that are only included with "Suse

Re: [Discuss-gnuradio] gr_frequency_modulator_fc.cc: unknown function trunc()

2005-03-07 Thread Krzysztof Kamieniecki
I think the problem is that trunc is not part of the C++ standard. It is officially part of C99 so we could link in that library. This is the macro I would suggest, since int only goes to ~2 billion :) Also I would prefer a function call because #define trunc(x) ((x >= 0) ? floor(x) : ceil(x))

Re: [Discuss-gnuradio] gr_frequency_modulator_fc.cc: unknown function trunc()

2005-03-07 Thread Krzysztof Kamieniecki
One more try #define trunc(x) (((x) >= 0) ? floor(x) : ceil(x)) Quoting Krzysztof Kamieniecki <[EMAIL PROTECTED]>: > I think the problem is that trunc is not part of the C++ standard. It is > officially part of C99 so we could link in that library. > > This is the macro I would suggest, since in

[Discuss-gnuradio] dual-gate mosfet front end - results

2005-03-07 Thread Chuck Swiger
Gang - just for the record this front end: http://www.designnotes.com/CIRCUITS/Activeantenna1.gif works at least as good as, if not better than the MPF102 version (but w/o the tuned input, just using a capacitance coupling to the antenna and 1.5Mohm from gate to gnd). Using a long random wire, tune

[Discuss-gnuradio] Cypress FX2 thermal issues

2005-03-07 Thread David Carr
Has anyone had any issues with the Cypress FX2 overheating? Ordinarily I have the LTC1746 board connected to the ElraSoft FX2 board. However right now I'm experimenting with my Spartan 3 dev board. Everything seems to run fine for 10-15 minutes at which point I stop getting data from the FX2

Re: [Discuss-gnuradio] gr_frequency_modulator_fc.cc: unknown function trunc()

2005-03-07 Thread Eric Blossom
On Tue, Mar 08, 2005 at 12:24:42AM +1030, Berndt Josef Wulf wrote: > G'day, > > thanks for supplying the man page on trunc(). This function is indeed missing > in NetBSD - not sure why. > > Anyhow, I think I've found a solution that works and may be acceptable for > inclusion into the source tr

Re: [Discuss-gnuradio] USRP - FC3 usb transfer rate tx. vs. rx.

2005-03-07 Thread Eric Blossom
On Mon, Mar 07, 2005 at 07:13:22AM -0600, Greg Spanel wrote: > I'm running Fedora core 3 on several different machines including > one with the Intel motherboard with the fast southbridge. > > The tx. transfer rate on all of these machines is 6meg/sec. using > test_usrp_standard_tx. > The rx. rate

[Discuss-gnuradio] wfm_rcv.py works, but with half-second delay in audio!

2005-03-07 Thread John Gilmore
I finally got a SMA cable to hook the USRP to my old 4937 tuner. wfm_rcv.py worked like a charm on the first try, tuning a strong local FM radio station. I cabled the computer's audio output into my main amplifier, which also has a traditional FM tuner. When I switched between the tuner and the c

Re: [Discuss-gnuradio] wfm_rcv.py works, but with half-second delay in audio!

2005-03-07 Thread Eric Blossom
On Mon, Mar 07, 2005 at 04:40:33PM -0800, John Gilmore wrote: > I finally got a SMA cable to hook the USRP to my old 4937 tuner. > wfm_rcv.py worked like a charm on the first try, tuning a strong local > FM radio station. I cabled the computer's audio output into my main > amplifier, which also ha

[Discuss-gnuradio] _submit_urb failed error

2005-03-07 Thread Damien B.
Hi, i'm setting a system for gnu-radio, managed to install software (make check ok), the USRP is correctly detected and i flashed the daughterboards. When i try to run basic TX examples i receive an error from _submit_urb (listing at the end). I tried CVS and tarballs with no luck. I'm running a 2

Re: [Discuss-gnuradio] Cypress FX2 thermal issues

2005-03-07 Thread Matt Ettus
> Has anyone had any issues with the Cypress FX2 overheating? Ordinarily > I have the LTC1746 board connected to the ElraSoft FX2 board. However > right now I'm experimenting with my Spartan 3 dev board. Everything > seems to run fine for 10-15 minutes at which point I stop getting data > from