[time-nuts] BG7TBL GPS Disciplined Source

Vlad time at patoka.org
Mon Mar 14 16:11:16 EDT 2016


I would say its even more convenient to monitor binary format, since its 
more compact and could be read as a structures

// u-blox UBX protocol essentials

typedef struct ubx_header {
         unsigned char preamble1;
         unsigned char preamble2;
         unsigned char msg_class;
         unsigned char msg_id;
         unsigned short length;
} my_ubx_header;

typedef struct ubx_nav_timegps {
         unsigned long iTOW_ms;
         signed long fTOW_ns;
         signed short week;
         signed char leapS;
         unsigned char valid;
         unsigned long tAcc;
} my_ubx_nav_timegps;

typedef struct ubx_nav_timeutc {
         unsigned long iTOW_ms;
         unsigned long tAcc_ns;
         signed long nano;
         unsigned short year;
         unsigned char month;
         unsigned char day;
         unsigned char hour;
         unsigned char min;
         unsigned char sec;
         unsigned char valid;
} my_ubx_nav_timeutc;

and so on...


On 2016-03-14 15:38, Björn wrote:
> <div>-------- Originalmeddelande --------</div><div>Från: Gedas
> <w8bya at mchsi.com> </div><div>Datum:2016-03-14  19:52  (GMT+01:00)
> </div><div>Till: Discussion of precise time and frequency measurement
> <time-nuts at febo.com> </div><div>Rubrik: Re: [time-nuts] BG7TBL GPS
> Disciplined Source </div><div>
> </div>
> 
> Who would have guessed a Russian OCXO.  And, I guess the U-Blox is not
> one of the better GPS units based on what Paul mentioned.  But I think
> there is software out there that will let me at least monitor what my
> unit is doing and how many birds it is receiving data from.
> 
> Ublox makes excellent receivers. The monitoring software is fine.
> 
>     https://www.u-blox.com/en/product/u-center-windows
> 
> But they dont talk (old) scpi.
> 
> --
>      Björn
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-- 
WBW,

V.P.


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