Re: [Discuss-gnuradio] USRP synchronization

[Per Zetterberg]

> > 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.

BR/
Per