Re: [Discuss-gnuradio] wfm_tx and nbfm_tx

2008-12-19 Thread Firas Abbas
Hi Dimtris, --- On Fri, 12/19/08, Dimitris Symeonidis wrote: > the description should be changed to show that: > - blks2.wfm_tx can receive a maximum audio rate of <=16k > (instead of > the declared >= 16k) > - blks2.nbfm_tx can receive a maximum audio rate of <= > 4.5k (instead of >= 16k) >

Re: [Discuss-gnuradio] wfm_tx and nbfm_tx

2008-12-19 Thread Dimitris Symeonidis
Hi Firas, the description should be changed to show that: - blks2.wfm_tx can receive a maximum audio rate of <=16k (instead of the declared >= 16k) - blks2.nbfm_tx can receive a maximum audio rate of <= 4.5k (instead of >= 16k) This both in the code, and in the pdf file On a different mistake, b

[Discuss-gnuradio] OFDM-Code: DC-Carriers and ofdm_mapper

2008-12-19 Thread Martin Braun
Hi, I'm currently trying to get a hang of the OFDM-internals and I'm stuck in gr_ofdm_mapper_bcv. I hope someone might be able to enlighten me... First of all, how exactly does gr_ofdm_mapper_bcv decide which carriers are used? I really, really hate having to ask this kind of question when I have

Re: [Discuss-gnuradio] Usrp2 Fpga Synthesis Question - Ucf related

2008-12-19 Thread Eric Blossom
On Wed, Dec 17, 2008 at 06:19:09PM -0500, alfa...@aol.com wrote: > Hi, > > I've recently started looking at the Spartan3 ISE projects.? I started trying > to re-synthesize the ISE projects, while using the "u2_rev3.ucf" file, I > realized that I had to enable the "Allow Unmatched LOC Constraints

[Discuss-gnuradio] wfm_tx and nbfm_tx

2008-12-19 Thread Dimitris Symeonidis
Hi list, I think I found two errors in the wfm_tx.py and nbfm_tx.py blocks: while the description says: @param audio_rate: sample rate of audio stream, >= 16k for both of them, they have an low-pass interpolating filter which cuts off at 16kHz for wfm and 4.5kHz for nbfm... this is wrong also in

Re: [Discuss-gnuradio] USRP2 GigE Reports

2008-12-19 Thread Oswald Berthold
Matt Ettus writes: > I have started a page on the wiki to collect information about various > GigE cards and how well they are working with the USRP2. Please check > it out and update it with your experiences. > >http://gnuradio.org/trac/wiki/USRP2GigEReports > > > Also, here is some basic b