[ntp:questions] WiFi & NTP.

David L. Mills mills at udel.edu
Wed Aug 29 16:57:04 UTC 2007


Dennis Hilberg Jr wrote:
> Jason Rabel wrote:
> 
>>> I am a student from a French engineering school. I am currently
>>> working on a synchronization over WiFi project that could apply to
>>> embedded devices.
>>>
>>> For the moment, I have only reached a precision of 5 ms.
>>>
>>> (Whereas I get a precision of a few hundreds of microseconds with an
>>> Ethernet connection.)
>>
>>
>> 5 ms is pretty darn good especially over wifi. What number are you 
>> using for
>> your 'precision'? There is no way you can get µs precision over Ethernet,
>> you must be reading something wrong.
> 
> 
> I have a machine synced exclusively to my stratum 1 over Ethernet that 
> keeps a +-100 µs offset, unless 'ntpq -c rv' is lying to me.
> 




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