NMEA sentences; other GNSS

[Paul Theodoropoulos]

Huh.  Seemed reasonable enough to me, other than that I'm unsure what you 
meant with the last sentence, "but raning from SBAS hurts" due to the typo...

I mainly want to be conservative in what I send, and liberal in what I 
accept, with a tip of the fez to Jon Postel... :)

On 6/14/2019 16:44 PM, Gary E. Miller wrote:
> Yo Paul!
>
> No other questions?  Not all agree with my comments below.
>
> On Fri, 14 Jun 2019 16:41:07 -0700
> Paul Theodoropoulos <paul at anastrophe.com> wrote:
>
>> Thanks Gary. I went back and forth on gpsd-users and ntpsec-users,
>> since this was specific to time service, I went with the latter - but
>> either could have worked I guess!
>>
>> On 6/14/2019 16:36 PM, Gary E. Miller wrote:
>>> Yo Paul!
>>>
>>> Maybe best asked one gpsd-users at nongnu.org?
>>>
>>>
>>> On Fri, 14 Jun 2019 16:24:49 -0700
>>> Paul Theodoropoulos <paul at anastrophe.com> wrote:
>>>   
>>>> Two quickie questions, as I've read an assortment of conflicting
>>>> things on our old friend the Internet:
>>> Hehehe.
>>>   
>>>> 1. What are the minimum/desireable NMEA sentences for a GPS
>>>> receiver to send gpsd for timeservice?
>>> Minimum:
>>>
>>> $GPZDA for the year.
>>> $GPRMC for the date and time.
>>>
>>> gpsd when asked, will set u-blox to:
>>>
>>> $GPGBS
>>> $GPGGA
>>> $GPGSA
>>> $GPGST
>>> $GPGSV
>>> $GPRMC
>>> $GPVTG
>>> $GPZDA
>>>
>>>   
>>>> 2. On the ublox neo-M8T, it supports GNSS:
>>>>
>>>> GPS
>>>> SBAS
>>>> Galileo
>>>> BeiDou
>>>> IMES
>>>> QZSS
>>>> GLONASS
>>> Tests show that just GPS is usually best for the PPS.  YMMV.  Easy
>>> to test.
>>>> I know that IMES and QZSS are specific to Japan, so definitely not
>>>> needed
>>> IMES is indoor "GPS".  Do not use that!
>>>   
>>>> Is there any value in having anything other than just GPS enabled,
>>>> for a stationary timeserver? Does SBAS help at all?
>>> SBAS corrections help, but raning from SBAS hurts.
>>>
>>> RGDS
>>> GARY
>>> ---------------------------------------------------------------------------
>>> Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR
>>> 97703 gem at rellim.com  Tel:+1 541 382 8588
>>>
>>> 	    Veritas liberabit vos. -- Quid est veritas?
>>>       "If you can’t measure it, you can’t improve it." - Lord Kelvin
>>>
>>> _______________________________________________
>>> users mailing list
>>> users at ntpsec.org
>>> http://lists.ntpsec.org/mailman/listinfo/users
>
>
>
> RGDS
> GARY
> ---------------------------------------------------------------------------
> Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
> 	gem at rellim.com  Tel:+1 541 382 8588
>
> 	    Veritas liberabit vos. -- Quid est veritas?
>      "If you can’t measure it, you can’t improve it." - Lord Kelvin
>
> _______________________________________________
> users mailing list
> users at ntpsec.org
> http://lists.ntpsec.org/mailman/listinfo/users

-- 
Paul Theodoropoulos
www.anastrophe.com