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Re: [Discuss-gnuradio] Re: RFX2400 Transmit Receive question

From: Stefan Brüns
Subject: Re: [Discuss-gnuradio] Re: RFX2400 Transmit Receive question
Date: Fri, 29 Aug 2008 15:32:13 +0200
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On Friday 29 August 2008 14:41:26 Jason Uher wrote:
> Kaleem,
>   There is a response to this thread from Matt Ettus (who designed the
> RFX) that says you can not use them concurrently.
> Jason

Hi Jason,

do you remember the threads title or an approximate date?

For TDMA schemes, it would be very nice to know the delay of the AD/DA 
converters (and filters ...), and easiest would to measure the signal from 
the tx port fed back to the same daughterboard via loopback cable to the rx2. 
As far as I understand, this is not possible. (All this requires the 
timestamps of the inband signaling, of course).

Would using a second daughterboards rx require a MIMO/modified daughterboard, 
or is it ok to use two non-MIMO rfx2400 on the same USRP? In my case, 
accuracy of about a few samples would be ok, but there might be other cases 
which require higher accuracy.


Stefan Brüns  /  Bergstraße 21  /  52062 Aachen
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