[time-nuts] GPS for ntp

Joseph Gray jgray at zianet.com
Fri Oct 24 04:18:43 UTC 2014


OK, I see source of the confusion. There is a difference of "one" character
in the two part numbers. The RYN25 has the older Ublox chipset. The RY725
has the Neo-7N chipset. There is only a $6 difference in price. I think
I'll get a few to play with.

Joe Gray
W5JG


On Thu, Oct 23, 2014 at 2:41 AM, Brian Inglis <
Brian.Inglis at systematicsw.ab.ca> wrote:

> On 2014-10-22 21:07, Joseph Gray wrote:
>
>> Now I'm confused. Both the ebay listing and the linked specsheet clearly
>> state that the Ublox Neo-7N is used. Is this true or not?
>>
>
>  On Wed, Oct 22, 2014 at 2:50 PM, Tom Van Baak <tvb at leapsecond.com> wrote:
>>
>>> The USB interface will give you unpredictable timing and you still have
>>>>
>>> to hook
>>>
>>>> up the PPS output somehow, so can only really be recommended for
>>>>
>>> navigation uses.
>>>
>>> No, both versions of this board have a very nice 1PPS output pin.
>>> Use the serial or USB interface for NMEA sentences only; use 1PPS for
>>> timing.
>>>
>> I managed to browse to N25 not 725 devices when I looked them up!
> --
> Take care. Thanks, Brian Inglis
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