[Discuss-gnuradio] USRP2 external reference clock

[Steve Mcmahon]

Hello:

Could someone please help me with a quick question?

I am trying to sync up the clocks on two USRP2 boards. How do I use the 
external reference clock "REF CLOCK" input? What does this input take? My 
understanding is that it takes a 10 MHz sine wave, 1 volt peak-to-peak.

And how do I enable this input? Do I need to set anything in my flowgraph?

Thanks a lot!!

Steve McMahon