[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Discuss-gnuradio] Re: Re: Frequency dependent problem after syncronizin

From: Bruhtesfa Ebrahim
Subject: [Discuss-gnuradio] Re: Re: Frequency dependent problem after syncronizing , Please help!
Date: Mon, 16 Feb 2009 22:10:47 +0100

Eric Blossom wrote:
> On Thu, Feb 12, 2009 at 02:17:05PM -0800, Johnathan Corgan wrote:
>> Actually, what you're now describing is more like not receiving any
>> signal at all--the small line at DC is residual DC offset from the
>> ADC, and the noise is simply that, noise that gets amplified according
>> to the gain setting.  At a certain point the noise power exceeds the
>> small DC offset.
>> Johnathan
> Agreed about no (or low) signal, though I think the small line at DC
> is a truncation artifact in the FPGA.
> Eric

Hi Eric,

Is there any DC(low frequency)removing/coupling effect in the USRP that 
arises due to syncronization?
 Because, before I syncronize the boards i was able to transmit,for 
instance at 4.96GHz and receive a narrow band carrier at the same 
frequency,4.96GHz. Now, I am able to see the correct spectrum if and 
only if i receive at a frequency offset greater than +/- 1KHz.


Posted via http://www.ruby-forum.com/.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]