[ntp:questions] Cheap ($29.90) GPS receiver
"terje.mathisen at tmsw.no" at ntp.org
Mon Apr 19 12:22:22 UTC 2010
Uwe Klein wrote:
> Terje Mathisen wrote:
>> David J Taylor wrote:
>>> "John Hasler" <> wrote in message
>>> news:87zl10gw35.fsf_-_ at thumper.dhh.gt.org...
>>>> This might be of some interest to some here:
>> The pinout diagrams show no PPS pin, and no free/unused pin either.
>> If the normal/sleep pin could be converted from an input sleep signal
>> to an output PPS pulse, then it would work, but I don't think that is
> looks like sending of the GPZDA sentence is synced to (internal) PPS
> ask the manufacturer?
It would still be limited to the resolution of the rs232 clock, i.e.
~1ms, instead of the ~1us we usually get from PPS receivers.
OTOH, for many users 1-3 ms might be just fine, and statistical
processing might make it stable at the sub-ms level, but with unknown
- <Terje.Mathisen at tmsw.no>
"almost all programming can be viewed as an exercise in caching"
More information about the questions