Re: [Discuss-gnuradio] USRP2 External Clock

[Eric Blossom]

On Wed, Oct 22, 2008 at 04:12:07PM -0400, Kyle Pearson wrote:
> I'm wondering if it is possible to connect the USRP2 to an external
> 100MHz clock like the USRP was able to be modified so it could connect
> to an external 64MHz clock. I don't see any place to solder on a SMA
> connector but there are a set of pins labeled Test CLK. Could that be
> used for inputting an external clock or is it just for testing the
> clock output?
> 
> Thanks,
> Kyle

Note the "Ref Clock" connector on front panel:

  http://gnuradio.org/trac/wiki/USRP2

It takes a 10 MHz reference.

Eric