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Re: [Discuss-gnuradio] USRP synchronization

From: Per Zetterberg
Subject: Re: [Discuss-gnuradio] USRP synchronization
Date: Tue, 16 Mar 2010 06:24:34 +0100
User-agent: Thunderbird (X11/20090817)

4.) Do the PLL's on the daugherboard tune every time a C++ or Python program is run or every time the board is powered on? i.e. for phased arrays will we just need to calibrate every time the board is powered on or every time we
take a given stream of data?

Every time you send the tune command. You should only send this when you need to change frequency, not every time you start streaming.

I have a special case. I want to transmit and then receive and then transmit using xcvr2450. Will the phase of the transmitter be the same during the first and second transmit ? I am assuming I call tune once, and then receive and transmit on the same frequency.


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