Re: [Discuss-gnuradio] Noise floor and Rx Gain

2010-01-23 Thread Matt Ettus
On 01/23/2010 01:28 PM, Yong J. Chang wrote: Thanks for your great answer Matt. I have another quick question. We know that the controllable range of rx-gain is 0 to 90dB in RFX-2400 d'board. But I only can find a programable gain amplifier in ADC chip whose range is 0 to 20dB. Where is the rece

Re: [Discuss-gnuradio] Noise floor and Rx Gain

2010-01-23 Thread Yong J. Chang
Thanks for your great answer Matt. I have another quick question. We know that the controllable range of rx-gain is 0 to 90dB in RFX-2400 d'board. But I only can find a programable gain amplifier in ADC chip whose range is 0 to 20dB. Where is the received signal actually amplified according to the

Re: [Discuss-gnuradio] AttributeError: 'FileParam' object has no attribute 'entry'

2010-01-23 Thread Josh Blum
thanks! the fix will be merged in soon On 01/23/2010 10:29 AM, Dimitris Symeonidis wrote: In the latest version of the GNU Radio master tree, there's a small bug in the GRC GUI that breaks the file selection dialog. The error on the terminal is this: Traceback (most recent call last): File

Re: [Discuss-gnuradio] Noise floor and Rx Gain

2010-01-23 Thread Matt Ettus
On 01/23/2010 09:48 AM, Yong J. Chang wrote: All, I'm trying to set all USRP and RFX2400 parameters comparable with Micaz in the context of receiver sensitivity. But I've observed a non-linear behavior of ADC. By using usrp_fft.py, we can see noise floor level. When I change a rx-gain in a ran

[Discuss-gnuradio] AttributeError: 'FileParam' object has no attribute 'entry'

2010-01-23 Thread Dimitris Symeonidis
In the latest version of the GNU Radio master tree, there's a small bug in the GRC GUI that breaks the file selection dialog. The error on the terminal is this: Traceback (most recent call last): File "/usr/local/lib/python2.6/dist-packages/gnuradio/grc/python/Param.py", line 68, in _handle_clic

[Discuss-gnuradio] Noise floor and Rx Gain

2010-01-23 Thread Yong J. Chang
All, I'm trying to set all USRP and RFX2400 parameters comparable with Micaz in the context of receiver sensitivity. But I've observed a non-linear behavior of ADC. By using usrp_fft.py, we can see noise floor level. When I change a rx-gain in a range of 0~45dB, noise floor level does not change

[Discuss-gnuradio] BBN 802.11-b project - MAC Layer issue

2010-01-23 Thread Juan Ramon Gutierrez Agullo
Hello I've been analyzing the BBN project code (trunk and branches versions) and I can't understand how is the MAC layer working. As the standard 802.11 says, the minimal functionality is CSMA/Carrier Avoidance but I haven't seen any implementation in this project. Which part of the MAC is devel

Re: [Discuss-gnuradio] Usrp1 wideband fft scope implemented yet?

2010-01-23 Thread Dave
Oops Please disregard the quoted text non relevant Sent from my iPhone ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Usrp1 wideband fft scope implemented yet?

2010-01-23 Thread Dave
Does anyone have the spectrum-sense implemeted into a wide band fft GUI display yet? Perhaps a private project they might be willing to share ? If anyone is working on it let me know if u need any help... Sent from my iPhone On Jan 22, 2010, at 7:20 PM, Eric Blossom wrote: On Fri, Jan 22, 201

Re: [Discuss-gnuradio] boost-1.37.0 dependency in 3.2.2 debian packages

2010-01-23 Thread Alexander Chemeris
Hi Johnathan, Three questions: 1) What is the reason you don't follow usual Debian/Ubuntu layout where you use distribution versions under dists/ instead of package versions? Then it's possible to build for multiple distributions. 2) Also, why don't you use Launchpad for hosting? It will build au