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Today's Topics:

   1. USRP SBX daughter board (Usrp IITM)
   2. Re: Matlab's Automatic Gain Control (Ethem Sozer)


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Message: 1
Date: Fri, 14 Dec 2012 12:42:15 +0530
From: Usrp IITM <[email protected]>
To: [email protected]
Subject: [USRP-users] USRP SBX daughter board
Message-ID:
        <CAPkh=_8dh38pcgcechmrepw1fhqqasohho0gjemelx6v9aq...@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

We are trying to implement OFDM point to point link using USRPN210. The
frequency used is 2.49GHz. When we used RFX2400 daughter board in
transmitter ,it works for rate of 5MHz for a Rx gain of 40dB-50dB. But when
we use SBX daughter board(which has variable transmit gain), it doesn't
work for 5 MHz rate.We can't even see a spectrum in the reciever.Can
someone explain how to adjust the gain for different rates and all other
specifications of SBX daughterboard.
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Message: 2
Date: Fri, 14 Dec 2012 16:22:35 +0000
From: Ethem Sozer <[email protected]>
To: Fernando Quivira <[email protected]>,
        "[email protected]"    <[email protected]>
Subject: Re: [USRP-users] Matlab's Automatic Gain Control
Message-ID:
        <93d53efe258f7b40996b3005458c751d1cbe4...@exmb-01-ah.ad.mathworks.com>
Content-Type: text/plain; charset="us-ascii"

Hi Fernando,

The R2013a prerelease of Communications System Toolbox has an AGC System 
object, called comm.AGC, which implements the same algorithm.  You can get the 
prerelease here:

http://www.mathworks.com/downloads/web_downloads/get_release?release=R2013a+Prerelease

Regards,
Ethem Sozer

From: USRP-users [mailto:[email protected]] On Behalf Of 
Fernando Quivira
Sent: Wednesday, December 12, 2012 10:11 PM
To: [email protected]
Subject: [USRP-users] Matlab's Automatic Gain Control

Dear list:

Does anybody know what algorithm is used in Matlab's Automatic Gain Control 
code (FRSGMRSDemoAGC.p)? The routine is p-coded. Does anybody know if the AGC 
code in GNURadio is the same as Matlab's?

Thank you for your help

- Fernando
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