Re: [Discuss-gnuradio] If uhd support a more precise In band signaling timestamp in the resolution 1ns or 10ns?

[Matt Ettus]

On 06/04/2010 02:34 AM, John Wu wrote:
> Hi Matt,
> I recently learn the uhd project which contain a double type timestamp
> in band signaling. I want to know if this change really take a more
> precise timestamp from usrp hardware or it just an interface change to
> meet other hardware? For now, I want to measure the time of flight to
> count a distance, so the timestamp should be as precise as at least
> 100ns to meet my need.


The UHD will give you sample times which are accurate to 1 cycle.  On 
the USRP2 this is 10ns.

Matt