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From: (no name) (no email)
Date: Mon May 12 2008 - 01:23:12 EDT
I have a GPS question.
Last week I picked up a TomTom One GPS navigator on the basis of a Consumer
Reports review. I installed it in my car and drove down to the marina. The
TomTom started from scratch and in less than ten seconds found my starting
position. It updated my position every second and displayed it on a colored map
showing all the streets in the area. It indicated turns with extreme accuracy by
voice and turn arrows. It showed my exact speed, told me what time it was.
Finally, it let me choose the type of display I wanted, 2D or 3D, and offered a
special night display. It also showed every tourist sight, gas station, motel,
and restaurant on the short trip.
On the boat I turned on my Garmin 76 GPS navigator. It took five minutes to
show my starting position, acquired satellites much more slowly, updated
slowly, and had a much more complicated procedure for entering waypoints and
destinations. Compared to the TomTom, the mapping function was primitive. Yet the
Garmin cost twice as much as the TomTom. It also was twice the size but had a
smaller display. Further the TomTom can be updated both in software and stored
maps free with a downloaded computer program.
I know the Garmin is a couple of years older but the GPS satellite system is
the same.
My questions are: What has happened to GPS navigator technology in the last
three or four years to make such a difference? Why can't marine GPS navigators
match the operational simplicity of automobile GPS navigators? Is it merely a
question of marine technology costing more for less?
Larry Z
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