Reference clocks.

[Mark Atwood]

In a few weeks I will have a crate of the Navisys units.  They do PPS over
USB serial.

On Tue, May 3, 2016 at 2:30 PM Hal Murray <hmurray at megapathdsl.net> wrote:

>
> gem at rellim.com said:
> > Please, no GPS-18s.  The Garmin Binary protocol is a mess and the chip is
> > over 10 years old with a weak sensitivity, no GLONASS, etc.  Many better
> GPS
> > LVC solutions.
>
> The GPS-18x is only 5 years old.  1/2 :)  It speaks NMEA so you don't have
> to
> mess with the binary stuff.
>
> The USB versions don't speak NMEA.  I assume they ran out of ROM or such.
> But they don't have a PPS so they aren't very interesting so I don't care
> if
> I can talk to them.
>
> Do you have suggestions for better "LVC" gear?
>
> ---------
>
> One unit I forgot to mention on my previous message is the Sure demo board.
> It has both USB and serial connections.  Power from USB.  No PPS, but you
> can
> wire it up.  Some of the pins are tiny so that wiring requires some skill.
>
>
> http://www.ebay.com/itm/SKG16A-Bluetooth-RS232-USB-UART-GPS-Module-Demo-Board-
> /230844194302
>
> Lots of info here:
>   http://www.satsignal.eu/ntp/Sure-GPS.htm
>
> The same data on USB and serial port allows easy comparison.
>
>
>
> --
> These are my opinions.  I hate spam.
>
>
>
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