[ntp:questions] Number of Stratum 1 & Stratum 2 Peers

Rob nomail at example.com
Wed Dec 17 13:46:10 UTC 2014


Martin Burnicki <martin.burnicki at meinberg.de> wrote:
> Rob wrote:
>> Martin Burnicki <martin.burnicki at meinberg.de> wrote:
>>> IMO the GPS system designers have made quite a number of wise decisions,
>>> e.g. letting the GPS time simply increase monotonically, which is, from
>>> a technical/usage point of view, similar to TAI.
>>
>> That decision was wise.  The decision to express date in weeks and put
>> it in a 10-bit field was not so wise.  Oh well.
>
> Only the 10 bit field wasn't. However, for a pure navigation system this 
> doesn't matter at all. Only if you need the current legal date and time 
> the epoch matters.

Sure, but when your require the system only for navigation and not to
provide time there is no reason whatsoever to sync it with any known
time standard or even to tick in units of a second.

Apparently the application of providing UTC time was considered in the
design phase, but it was never thought the system would be deployed and
would remain operational and be widely universally used for more than
19 years.

In this regard, it is similar to the Internet.



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