Unfortunately,gnuradio 3.1.3 does not support XCVR2450 daughterboard. You 
should install the lateset trunk by svn.
Chao Dong
Department of Computer Science and Technology, Nanjing University
Nanjing, Jiangsu, 210093 China PR.
Institute of Communication Engineering
Nanjing, Jiangsu, 210007 China PR.
  ----- Original Message ----- 
  From: Ahmed Majeed Khan 
  To: 董超(DONG Chao) 
  Cc: Discuss-gnuradio@gnu.org 
  Sent: Tuesday, April 14, 2009 11:07 PM
  Subject: Re: [Discuss-gnuradio] Communication Error using USRP 
withXCVR2450Daughter-boards


  Its the latest stable release; gnuradio-3.1.3.

  -Ahmed


  Quoting "董超(DONG Chao)" <dch...@gmail.com>:

  > Which Gnuradio trunk do you use?
  >
  >
  > Chao Dong
  > Department of Computer Science and Technology, Nanjing University
  > Nanjing, Jiangsu, 210093 China PR.
  > Institute of Communication Engineering
  > Nanjing, Jiangsu, 210007 China PR.
  >   ----- Original Message -----
  >   From: Ahmed Majeed Khan
  >   To: Discuss-gnuradio@gnu.org
  >   Sent: Tuesday, April 14, 2009 4:14 AM
  >   Subject: [Discuss-gnuradio] Communication Error using USRP with 
  > XCVR2450Daughter-boards
  >
  >
  >   Hi All,
  >   I am trying to communicate between two USRPs with XCVR2450 
  > daughter-boards attached with two separate PCs. When I tried running 
  > benchmark_tx.py, an error appeared;
  >   "ValueError: No class defined to handle daughter-board (dbid = 96)"
  >
  >   Can any one please help me rectify the error. Waiting reply.
  >
  >   -Ahmed
  >
  >
  >
  > 
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  --

  Ahmed Majeed Khan
  Graduate Research Assistant,
  Wireless and Video Communications (WAVES) Lab,
  Department of Electrical and Computer Engineering, 
  Michigan State University (MSU), MI 48823.

  Phone: 517-355-8137 (Home)
  Phone: 517-355-3769 (Work)
  Fax:   517-353-1980 
  Email: khana...@msu.edu
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