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That is the later model capable of maps so even better than the H.

Not very good may translate as "doesnt take photos" or "battery lasts ages"

Turn it on.....when it has got signal find mark or waypoint and put one at your position,name it truck,camp or whatever is applicable.
at any major deviation from course or feature you pass put...

Had one for quite a while, never let me down.

One thing I will say is if navigating to a waypoint use your old school compass as the internal compass is shit unless moving quite quickly., other...