[aprssig] NMEA output GPS or compass?

John D. Hays john at hays.org
Thu Jun 28 11:51:06 EDT 2018


Depending on what you are hooking up, these are pretty good:

https://www.adafruit.com/product/746
https://www.adafruit.com/product/2324

These units also have PPS for highly accurate time.

On Thu, Jun 28, 2018 at 6:53 AM, Jason KG4WSV <kg4wsv at gmail.com> wrote:

> > What I absolutely need at a minimum is a compass or GPS with an NMEA
> output.
> > The system has NMEA+ NMEA-, +12V power to compass/GPS and ground.  If
> it's a
> > GPS unit, I would prefer some sort of simple "puck" style unit rather
> than
> > something with a display and buttons to misconfigure.
>
>
> Argent Data Systems has a puck style GPS receiver with RS232 that
> requires a regulated +5V supply.
>
> The Garmin GPS18 series is still around, sounds like you probably want
> the GPS18PC (DE9 connector and a cigarette lighter plug last time I
> bought one).
>
> Good luck with a compass, and please report back if you find one for
> cheap.  Most GPS units will report heading, but unless you're moving
> at sufficient speed it's garbage.  Some continue to report the last
> heading they had confidence in, others simply report 0 when they're
> unsure.
>
> -Jason
> kg4wsv
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>



-- 

------------------------------
John D. Hays
Edmonds, WA
K7VE

   <http://k7ve.org/blog>  <http://twitter.com/#!/john_hays>
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