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RE: [Discuss-gnuradio] USRP 2 Daughter Cards

From: jim graham
Subject: RE: [Discuss-gnuradio] USRP 2 Daughter Cards
Date: Thu, 19 Feb 2009 14:52:41 -0500


rx_daughterboard_id() returns id 0x0034 for the RFX 1800 daughtercard?

For the comment on the RFX boards; does this mean we are unable to use the
dbs daughtercard on the USRP 2 unit?

-- thanks

Jim Graham
Black River Systems Company, Inc.
162 Genesee Street, Utica, NY 13502
       e-mail : address@hidden
       voice  : (315) 732-7385 x146
       fax :     (315) 732-5837

-----Original Message-----
From: 'Eric Blossom' [mailto:address@hidden 
Sent: Thursday, February 19, 2009 2:24 PM
To: jim graham
Cc: address@hidden
Subject: Re: [Discuss-gnuradio] USRP 2 Daughter Cards

On Thu, Feb 19, 2009 at 01:21:37PM -0500, jim graham wrote:
> Eric
> We are using Fedora Linux version 7 on an x86 machine.


[Please be sure to hit Reply-All to reply to the writer and the list.]

> The GNU radio software is Revision 10211 (jcorgan) 
> Last change date 1/12/2009
> We have the USRP 2 connected to a directional antenna.  I have used the 
> dbs daughtercard hooked to the same antenna with a USRP 1 to verify 
> a signal is present.
> For the dbs and lfrx daughtercards are the set_center_freq outputs of 0
> Baseband freq and -commanded freq for ddc freq correct?  
> The output of the call using a flex1800 daughtercard is different.

What rx_daughterboard_id() does the USRP2 report for your RFX 1800?

With regard to RFX boards, the USRP2 only supports the MIMO_B version.
Any board that the firmware doesn't recognize is treated as a Basic Rx
or Basic Tx.


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