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Re: [Discuss-gnuradio] Different sensing results with same hypothesis

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] Different sensing results with same hypothesis
Date: Wed, 19 Feb 2014 13:04:56 -0500
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On 02/19/2014 12:34 PM, Dan CaJacob wrote:
Oh, you were talking about the daughterboard itself.  No guarantees there, but the schematics are all available.  I think there was a recent discussion about this on the list.  What I was saying specifically, was that there is no AGC in the USRP motherboards/FPGA.  Daughterboards are separate, but in general, I don;t think they have AGC.  The WBX and some others, for instance, use fixed gain amplifiers with a variable attenuator to control power.

Very Respectfully,

Dan CaJacob

The only card with AGC is TVRX2, and it cannot be disabled.

On Wed, Feb 19, 2014 at 11:19 AM, Aditya Dhananjay <address@hidden> wrote:

I don't think there is any AGC on USRP hardware...

Hi Dan,

You are correct; I stand corrected. The XVCR2450 does not have an AGC.


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Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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