[Discuss-gnuradio] Does anyone have 'timestamps' working on USRP1 Receive path?

2010-05-07 Thread David Knox
Does anyone have code working that supports 'timestamps' on the receive path for USRP1 (RFX2400)? Is my only option to replace my USRP1's with USRP2s? My definition of 'timestamps' is: additional data used to mark (batches of) samples sent over the USB bus with a measurement accuracy on the orde

[Discuss-gnuradio] Question: How to use TV-RX board to get RSSI

2010-05-07 Thread Li Mei-Wen
Hi: How to use TV-RX board to get RSSI? Thanks in advance. Mei-Wen Li (Emily) National Cheng-Kung University Dept. of Computer Science and Information Engineering emily7...@hotmail.com ___

Re: [Discuss-gnuradio] Ramp problem

2010-05-07 Thread Marcus D. Leech
On 05/07/2010 09:35 PM, Josh Blum wrote: > the sample rate in the scope sink probably does not agree with the > rate in the signal source -Josh > > On 05/07/2010 09:17 PM, William Pretty Security Inc wrote: >> I think I have found my problem. I did as Josh suggested and fed the >> output >> of my s

Re: [Discuss-gnuradio] Ramp problem

2010-05-07 Thread Josh Blum
the sample rate in the scope sink probably does not agree with the rate in the signal source -Josh On 05/07/2010 09:17 PM, William Pretty Security Inc wrote: I think I have found my problem. I did as Josh suggested and fed the output of my signal source into a scope sink. The attached picture

Re: [Discuss-gnuradio] Button Labels property

2010-05-07 Thread Josh Blum
its a list of strings, so you will need quotes ['yes', 'no'] -Josh On 05/07/2010 07:40 PM, William Pretty Security Inc wrote: Hi All I have a variable "chooser" which is configured as a "Button". It is used to start and stop the sweep. (It works) The choices are set to 1,0 with the default a

[Discuss-gnuradio] Button Labels property

2010-05-07 Thread William Pretty Security Inc
Hi All I have a variable "chooser" which is configured as a "Button". It is used to start and stop the sweep. (It works) The choices are set to 1,0 with the default as 1. When the flow graph runs the number 0 or 1 is printed on the button, when I press it. I'm trying to make the button say "

Re: [Discuss-gnuradio] Offset Parameter ?

2010-05-07 Thread Josh Blum
On 05/07/2010 06:44 PM, William Pretty Security Inc wrote: Ok. I've almost got my scanner working, but I have a problem. What does the "offset" parameter do in the signal source ?? The equation for the output of the signal source is something like this: output[n] = amplitude*waveform[n] +

[Discuss-gnuradio] Offset Parameter ?

2010-05-07 Thread William Pretty Security Inc
Ok. I've almost got my scanner working, but I have a problem. What does the "offset" parameter do in the signal source ?? Does it produce the equivalent of a DC off set? For example if I want a ramp that goes from 0 to 2 volts, do I need an offset of 1 (volt) ?? Thanks . Bill ___

[Discuss-gnuradio] Proposal method for Wi-Fi channel sensing with USRP2 (explanation and question)

2010-05-07 Thread Juan Ramon Gutierrez Agullo
Hi I'm a Spanish Telecommunitacion Engineering student in his last year and I'm doing my final degree project related to USRP2.One part of this project is the measurement of the channel usage in the Wi-Fi band (2,4GHz and 5.2GHz). I've built the next flow graph: [USRP2 source (i.e. freq = 2.4G)

Re: [Discuss-gnuradio] audio_portaudio_source error during building gnuradio

2010-05-07 Thread Mattias Kjellsson
Hello Mattias, Thank you for your help. But I do not understand your answer totally since I am beginner. We are all beginners in some sense =;c) I do not know how to check version of boots and do not get related information from gnuradio wiki. If you have installed the boost- libraries fr

Re: [Discuss-gnuradio] audio_portaudio_source error during building gnuradio

2010-05-07 Thread jamhan
Hello Mattias, Thank you for your help. But I do not understand your answer totally since I am beginner. I do not know how to check version of boots and do not get related information from gnuradio wiki. However, I think second question is not stupid. The problem was solved and I do think it is