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Old 12-03-2019, 11:32 AM
  #4  
Fwpratt
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Originally Posted by Chesapeake Fisher View Post
So that is a bunch of bs huh?
I'm not claiming to know more than Garmin - but it makes no sense.

The GHC 20 'took the place' of the GHC 10 -
it has a bigger, brighter screen
but with the same function, same wiring.

Here'e what they said when the GHC 20 was introduced

"April 23, 2013 7:00 AM EDTOLATHE, Kan.--Garmin International Inc., a unit of Garmin Ltd. (NASDAQ: GRMN), the global leader in satellite navigation, today announced the GMI 20 and GHC 20, the premier Garmin instrumentation that bridges both the powerboat and sail instrument lineup.
...the GHC 20 is compatible with legacy Garmin autopilots while also being compatible with newer Garmin autopilot systems "

https://garmin.hqprod.businesswire.c...0-and-ghctm-20