Re: [Discuss-gnuradio] offset at input of LF_RX

You want the full schematics, which I believe are in the subversion repository. You can get them with this command (once you've installed the subversion client, of course): svn co http://gnuradio.org/svn/usrp-hw/trunk usrp-hw -Roshan [EMAIL PROTECTED] wrote: I would like to see this schematic

Re: [Discuss-gnuradio] offset at input of LF_RX

I would like to see this schematic that Don mentions; I look at ettus.com but all I could find is the 1-page basic description of the daughterboard. Is there something more detailed that shows the layout of the 8132 as well as the ADC? thanks, eric p.s.- the USRP performed beautifully for my

Re: [Discuss-gnuradio] offset at input of LF_RX

Don Ward wrote: > That's not what I get. With the input open, I measure 108 mV on the > SMA connector and a DC component from the ADC (detected using the RSSI > register, to avoid the DC offset filter in the FPGA). If I short the > input to ground, I get a negative DC component from the ADC. To

[Discuss-gnuradio] Re: OFDM implementation

Hi: Why I run the benchmark_ofdm and there is a warning like below? gr_buffer::allocate_buffer: warning: tried to allocate 20 items of size 1600. Due to alignment requirements 64 were allocated. If this isn't OK, consider padding your structure to a power-of-two bytes. On this platf

Re: [Discuss-gnuradio] FFT Spectral smoothing

Peter Monta wrote: > >>> i'd like to do spectral smoothing on an FFT in real time through >>> GNU_RADIO. >>> >>> Is there a function that will allow me to do this in the GNU_RADIO >>> modules? >>> >> >> Are you referring to smoothing FFT bins over time or over frequency? >> >> > > I guess h

Re: [Discuss-gnuradio] FFT Spectral smoothing

On Friday 22 June 2007, Johnathan Corgan wrote: > Aadil Volkwin wrote: > > i'd like to do spectral smoothing on an FFT in real time through > > GNU_RADIO. > > > > Is there a function that will allow me to do this in the GNU_RADIO > > modules? > > Are you referring to smoothing FFT bins over time or

Re: [Discuss-gnuradio] offset at input of LF_RX

- Original Message - From: "Matt Ettus" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: Sent: Thursday, June 21, 2007 9:33 PM Subject: Re: [Discuss-gnuradio] offset at input of LF_RX [snipped] Back to the subject of what your signal generator is doing, I don't know. If you measur

Re: [Discuss-gnuradio] FFT Spectral smoothing

Peter Monta wrote: > I guess he means time. This would greatly improve > the FFT demos, since currently there is no "video > filtering", as the spectrum analyzer folks say. In the current FFT demo, it is possible to right-click on the display and select 'Average'. This will perform low-pass fil

Re: [Discuss-gnuradio] Tx/Rx in the 144 MHz (2m) band

On Fri, 2007-06-22 at 10:32 -0700, Johnathan Corgan wrote: > Lee Patton wrote: > > > I want to transmit and receive in the 144 MHz (2m) band, but there isn't > > a daughterboard available for that band. 144 MHz will alias to 16 MHz > > with a 64 MHz sampling frequency. So, sub-nyquist sampling w

Re: [Discuss-gnuradio] FFT Spectral smoothing

i'd like to do spectral smoothing on an FFT in real time through GNU_RADIO. Is there a function that will allow me to do this in the GNU_RADIO modules? Are you referring to smoothing FFT bins over time or over frequency? I guess he means time. This would greatly improve the FFT de

Re: [Discuss-gnuradio] Tx/Rx in the 144 MHz (2m) band

Lee Patton wrote: > I want to transmit and receive in the 144 MHz (2m) band, but there isn't > a daughterboard available for that band. 144 MHz will alias to 16 MHz > with a 64 MHz sampling frequency. So, sub-nyquist sampling will work on > receive. However, I'm not sure how to achieve 144 MHz

Re: [Discuss-gnuradio] offset at input of LF_RX

On Fri, 22 Jun 2007, Matt Ettus wrote: [EMAIL PROTECTED] wrote: On Thu, 21 Jun 2007, Matt Ettus wrote: If there is no dc-removing capacitor in the circuitry , then should I not expect that for a board using a single (positive) supply, that the signal is always above zero? No, you can p

Re: [Discuss-gnuradio] FFT Spectral smoothing

Aadil Volkwin wrote: > i'd like to do spectral smoothing on an FFT in real time through > GNU_RADIO. > > Is there a function that will allow me to do this in the GNU_RADIO > modules? Are you referring to smoothing FFT bins over time or over frequency? -- Johnathan Corgan Corgan Enterprises LLC

Re: [Discuss-gnuradio] offset at input of LF_RX

[EMAIL PROTECTED] wrote: > On Thu, 21 Jun 2007, Matt Ettus wrote: > >> >>> >>> If there is no dc-removing capacitor in the circuitry , then should I >>> not expect that for a board using a single (positive) supply, that the >>> signal is always above zero? >>> >> >> >> No, you can put a negative vo

Re: [Discuss-gnuradio] offset at input of LF_RX

On Thu, 21 Jun 2007, Matt Ettus wrote: If there is no dc-removing capacitor in the circuitry , then should I not expect that for a board using a single (positive) supply, that the signal is always above zero? No, you can put a negative voltage in, as long as it doesn't go below -3.33V.

Re: [Discuss-gnuradio] Re: Website down?

Patrcik Strasser wrote: > No, try www.gnuradio.org ! > > Anyone, do we have (want?) gnuradio.org to resolve? Yes, it's the correct domain name. The 'www' host name is set to also resolve; this makes them interchangeable but all of our links in documentation, etc., point to gnuradio.org. By the

[Discuss-gnuradio] Re: Website down?

Teun van Berkel schrieb: gnuradio.org down? :( No, try www.gnuradio.org ! Anyone, do we have (want?) gnuradio.org to resolve? Patrick ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnurad

Re: [Discuss-gnuradio] Website down?

On Friday 22 June 2007 22:14, Trond Danielsen wrote: > 2007/6/22, Teun van Berkel <[EMAIL PROTECTED]>: > > gnuradio.org down? :( > > It works just fine in my little corner of the world. It was broken for me earlier today (couldn't resolve the name) but now it works fine. -- Daniel O'Connor soft

Re: [Discuss-gnuradio] Website down?

> It works just fine in my little corner of the world. This appears to be a DNS resolution issue. I am working on it. -- Johnathan Corgan Corgan Enterprises LLC http://corganenterprises.com ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org

Re: [Discuss-gnuradio] Website down?

2007/6/22, Teun van Berkel <[EMAIL PROTECTED]>: gnuradio.org down? :( It works just fine in my little corner of the world. Regards, -- Trond Danielsen ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/

Re: [Discuss-gnuradio] Error in my first USRP test

Hi I Installed it in Ubuntu 7.04. it works good now. --Alaelddin Tarun Tiwari wrote: On 6/21/07, *Alaelddin Mohammed* <[EMAIL PROTECTED] > wrote: it works now, thank you But, when I tried to run usrp_spectrum_sense.py I got this $ python usrp_spectrum_s

[Discuss-gnuradio] Website down?

gnuradio.org down? :( any idea when it will come up again? cheers, Teun ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] bug in wfm_rcv_pll and fix, who has stereo FM specs/info and noise and gain issues

Hi Martin, Goto http://www.itu.int/rec/R-REC-BS.450-3-200111-I/en and click on the electronic bookshop. After that register for 3 free download. Regards, Hew --- Martin Dvh <[EMAIL PROTECTED]> wrote: > Hew How Chee wrote: > > Hi, > > > > This document might be useful. > > > > RECOMMENDATION

[Discuss-gnuradio] Key-up Time for RFX400 and RFX2400

Hi, May I know what the physical delay is in turning on the RF radiation of the RFX400 and RFX2400? Thanks, Jeremy ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio