"alkope...@googlemail.com" <alkope...@googlemail.com> writes:

>On Dec 18, 10:08=A0am, Martin Burnicki <martin.burni...@meinberg.de>
>wrote:
>> Hi,
>>
>> The PCI511 card decodes the AM signal from DCF77 only. Due to the
>> characteristics of the AM signal the accuracy of the PCI511 card is only =
>in
>> the range of a few milliseconds, while the GPS card provides an accuracy
>> better than 1 microsecond.
>>

>Hi, you got me wrong. I did not wonder about the offset between gps
>and pps but about the offset between gps refclock and it's own gps pps
>(same for dcf refclock and it's own dcf pps).
>Take a look at this picture: http://img-up.net/img/gps-delay0tHm49.png
That your gps report is slow is not surprizing. It is delivered in a manner
that takes time to deliver. That you PPS has an offset of 20-40usec does
surprize me. It should be much better than that (2-4ms is more typical)

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