UbONE
X-Driven
14
Understanding GPS
GPS which is used for commercial purposes inherently has the average range error of
more than 15 meters. Near buildings, underground, underpasses, or roadside trees, the
range error may be more than 100 meters.
Satellite reception may take a long time. A certain amount of time is needed from when
an engine of a vehicle is started until GPS satellite reception begins, and this time may vary
depending on weather and environmental conditions.
Do not use GPS with other products that send electromagnetic waves or that use GPS.
This may reduce the performance of the GPS reception in this product.
Depending on GPS satellite accuracy, it may not always show the shape of roads or a cur-
rent location correctly. Especially in the following cases, an indicator of a current location
may not operate normally due to the shape of a road.
- When roads are closely parallel
- When an angle between split roads is slight
- When, after turning, a close road runs parallel
- When a vehicle meets a course of ferry
- When a road bends sharply
- When a road is very curvy
- When a road inside a mountain is very curvy
- When a car rotates by signs in parking the car
- When driving a car in rain or snow
- When entering a large road after driving a road that is not on the Map Data
- When driving among high buildings
Summary of Contents for DRS1100
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