[time-nuts] Re: What GNSS module to buy for a good time reference?

[Lux, Jim]

On 7/2/23 8:09 AM, Erik Kaashoek via time-nuts wrote:
> As I needed the accurate PPS in the coming weeks I decided to go for the
> ZED-F9T L1/L2 and if all is well it will arrive tomorrow.
> Now I need to understand how all this "postprocessing" works.
> Some questions:
>
> 1: The ublox tools show ability to output basic or full raw data and there
> are various scripts  to convert ublox data to Rinex and there are some
> websites listing the commands required to get the required output but is
> there a dummy's guide somewhere on how to get the RINEX data from the
> ZED-F9T in the correct version/format for the postprocessing?
>
> 2: NRCan seems to process only for Canada (according to their website,
> correct???). Auspos is listed as processing for the whole world. There are
> some others. What would be a recommended service? I'm located in Europe.
>
> Erik.

JPL has automated precise positioning service. They say it's free.  I've 
not used it.

https://pppx.gdgps.net//


/APPS/accepts GPS measurement files, and applies the most advanced GPS 
positioning technology from NASA’s Jet Propulsion Laboratory to estimate 
the position of your GPS receivers, whether they are static, in motion, 
on the ground, or in the air. APPS employs:

      *

        Real-time GPS orbit and clock products from JPL’sGDGPS
        <http://www.gdgps.net/>System

      *

        JPL’s daily and weekly precise GPS orbit and clock products

      *

        JPL’s GipsyX/RTGx software for processing the GPS measurements