[ntp:questions] Can NTP sync within 1ms
jimp at specsol.spam.sux.com
jimp at specsol.spam.sux.com
Sun Apr 27 18:20:11 UTC 2014
Rob <nomail at example.com> wrote:
> jimp at specsol.spam.sux.com <jimp at specsol.spam.sux.com> wrote:
>>> The listeners should enjoy a smooth reception while driving around.
>>> So of course there should be no time lag between the modulation signals
>>> of the different transmitters. Experts in the field tell us we should
>>> be within 12us.
>>
>> Unless I fat fingered the calculator, that means the difference in distance
>> between transmitters relative to the receiver can be no more than 3.6 km.
>>
>> 300 meters per microsecond; it is the law...
>
> The goal is not to have 12us difference in arrival time, but to be
> within 12us for transmission time.
What good does that do you?
And regarding "smooth reception while driving around", have you ever heard
of multipath or the capture effect?
--
Jim Pennino
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