[Discuss-gnuradio] DC component and daughter-boards

2005-04-28 Thread Damien B.
Hi, Matt in a previous thread you were talking about making d/b that let DC component pass: If there is enough interest, I might make such a set of boards. If someone else is interested in the design, the BasicRX/TX are a great starting point, and I can offer guidance. When i'm inspecting

Re: [Discuss-gnuradio] USRP and GnuRadio for OSX

2005-04-28 Thread Jonathan Jacky
On Thu, 28 Apr 2005, Oskar Lissheim-Boethius wrote: I run OSX and am still not proficient enough with Linux to go through all the steps to compile the core-project (well, I tried at least, and failed miserably). If some Mac-guys on the list could give a prospect on when I could eventually find

Re: [Discuss-gnuradio] USRP and GnuRadio for OSX

2005-04-28 Thread Matt Ettus
Also, there is no audio support for OS X yet. I was under the impression that OS X offered OSS (Open Sound System) emulation, in which case our gr-audio-oss module would work. Can someone confirm this? If not, is there a good reference online about sound programming for OS X? Matt

Re: [Discuss-gnuradio] DC component and daughter-boards

2005-04-28 Thread Matt Ettus
Damien B. wrote: Matt in a previous thread you were talking about making d/b that let DC component pass: If there is enough interest, I might make such a set of boards. If someone else is interested in the design, the BasicRX/TX are a great starting point, and I can offer guidance. I

Re: [Discuss-gnuradio] USRP and GnuRadio for OSX

2005-04-28 Thread Frank Brickle
FWIW the version of jack that runs on OSX appears to have matured quite a bit. PortAudio also has an OSX version, but given a choice, I'd bet more on jack. Matt Ettus wrote: Also, there is no audio support for OS X yet. I was under the impression that OS X offered OSS (Open Sound System)

Re: [Discuss-gnuradio] USRP and GnuRadio for OSX

2005-04-28 Thread Eric Blossom
On Thu, Apr 28, 2005 at 10:42:07AM -0700, Matt Ettus wrote: Also, there is no audio support for OS X yet. I was under the impression that OS X offered OSS (Open Sound System) emulation, in which case our gr-audio-oss module would work. Can someone confirm this? If not, is there a

[Discuss-gnuradio] USRP downconversion

2005-04-28 Thread Viktor Przebinda
Hi, I have a simple question on the USRP. When setting fpga digital down-conversion frequency to zero via set_rx_freq method why do I get nonzero (and changing) values in the imaginary channel? Seems like these should all be zero since sin(0)==0 ?? Thanks, Viktor

Re: [Discuss-gnuradio] DC component and daughter-boards

2005-04-28 Thread Lamar Owen
On Thursday 28 April 2005 13:48, Matt Ettus wrote: I have seen very little interest in that. Count me as interested, and actually wondering why your diff-amp solution wasn't the default? I wonder what the cost differential between the AD8132 and the transformer used? Speaking of, what is the

[Discuss-gnuradio] ofdm test bench

2005-04-28 Thread cswiger
Gang - Yesterday I finally figured out how to create a rudimentary ofdm signal, and today I slapped a receiver together and was suprised to see they actually (somewhat) work - at least it's something to work with and play with parameters and see what happens. Currently using psk31 and gmsk

Re: [Discuss-gnuradio] DC component and daughter-boards

2005-04-28 Thread Damien B.
Hi, thanks for the solution, maybe i'll try with a different transformer to shift the cutoff. When i'm inspecting the my FIR output, it's really difficult to measure a 30ns (one sample) delay if the signal is not clean. This is unrelated to the DC component issue. Blame it on my bad