QwikChek Puzzle Series #16 Mystery Cache

While I was doing the SQUARES puzzle, I was thinking of my stolen iPhone and P7 phones and how they trace these items. Triangulation is one of the technologies used where a phone can be tracked by using the average measurement of the last three closest cell masts where the phone was active. Just wish they can find my mobiles.... Here is a puzzle for you based on triangulation technology. I think it is just as mystifying as the science of triangulation. Using your own deductive technological advances, see if you can find and triangulate the coords for the cache where:
AB=#triangles
CD=#triangles pointing up
EF=#triangles pointing down
GH=#triangles inside the one triangle with most triangles
S=(A)(F/C) (GH).(A)(F-E)(D)
E=(GH-B) (EF+B).(AB/EF)-C

NOTE: The previous calculation was replaced with the above as some calculators did not give the required decimals

HTH goes to tjoklits. Dankie baja!

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