Re: [Discuss-gnuradio] FM TX diagram

2005-11-09 Thread Jorge Chávez
Thanks a lot for the help. In a non Software Radio FM transmitter we have an integrator, local osc, mixer, and RF filter. In this case, I can´t find the integrator and the RF section. why? are not necessary?. Thanks again. Jorge Chavez Mexico On 11/9/05, cswiger <[EMAIL PROTECTED]> wrote: > >

[Discuss-gnuradio] FM TX diagram

2005-11-09 Thread Jorge Chávez
Hi Everyone: I´m looking for a block diagram of the fm_tx4.py, the code is not totally understandable for me, that's why i´m trying to find a diagram. Thanks for the help. Sorry but i´m pretty new with GNU Radio. Jorge Chávez. Mexico ___ Discuss-gnurad

[Discuss-gnuradio] USRP TX and quadrature mixing

2005-11-09 Thread Jonathan Jacky
I'm trying to understand how the USRP TX-A and TX-B outputs (on the Basic TX daughterboards) are generated, and how they are related to each other. This has been discussed here before [1] but I think that diagram and explanation were not quite complete. I think I've got it now. Can anyone here

Re: [Discuss-gnuradio] Reflection Vector Analyzer

2005-11-09 Thread cswiger
On Wed, 9 Nov 2005 [EMAIL PROTECTED] wrote: > Damn, I just bought an Agilent 5230. :) I should have waited. > Don't hold your breath. But seriously, I thought this was an interesting instrument, an HP 4800A: http://cgi.ebay.com/HP-4800A-VECTOR-IMPEDANCE-METER-NICE_W0QQitemZ7559376862QQcategoryZ

Re: [Discuss-gnuradio] Reflection Vector Analyzer

2005-11-09 Thread mgray
Damn, I just bought an Agilent 5230. :) I should have waited. Looks good though. On Wed, 9 Nov 2005, cswiger wrote: > Gang - My Vector Analyzer works amazingly well enough that I put up > a brag page: > > http://webpages.charter.net/cswiger/phase/reflection_smith/smith_chart.html > > that is

[Discuss-gnuradio] Reflection Vector Analyzer

2005-11-09 Thread cswiger
Gang - My Vector Analyzer works amazingly well enough that I put up a brag page: http://webpages.charter.net/cswiger/phase/reflection_smith/smith_chart.html that is to say, I plug in a 1nF cap and it reads -9.95e-10 (995pF), plug in a 1.5uH inductor and it reads 1.59E-6. Essentially it measures

[Discuss-gnuradio] Real sampling on the USRP

2005-11-09 Thread Kunal Kandekar
Hi all, I am working on a highly experimental project where I need to transmit and receive noisy signals over the USRP, i.e. the noise is added digitally to the signal at the transmitter itself. Hence I would need to transmit and receive *only* real samples on the USRP, without any filtering, inte