GPS Reception
1)
Activate the product in an area without large buildings to
improve GPS reception.
2)
The temperature range for optimum operation of the GPS
receiver in your car is -10 ~ 50°C.
3)
When using the product for the first time or after a long p
eriod (more than three days), it may take a little longer to
recognize your current location.
NOTE:
It may take between
5 to 30
minutes to get GPS recepti
o
n.
GPS reception may be impaired under the following circumstances
:
1)
If there is an object at the end of the GPS antenna
2)
If your vehicle has metallic elements on the windshields
3)
If equipment generating electromagnetic waves that interfere with the G
PS signal is installed in the vehicle (i.e. Other GPS devices such as a ce
rtain type of wireless activated alarms, MP3 and CD players and camer
a alarms using GPS).
4)
If you are using a receiver connected by cable, electric interference
can be avoided by simply changing the location of the receiver (an
tenna).
5)
On heavily overcast or cloudy days, if the vehicle is in a covered locatio
n such as under a bridge or raised roadway, in a tunnel, an undergroun
d roadway or parking area, inside a building or surrounded by high-rise
buildings.
6)
If GPS signal reception is poor, it may take longer to locate your current
position when the vehicle is moving than when it is stationary.
4
The commercial purpose GPS has the average range error of more t
han 15 meters and the range error could be more than 100 meters d
ue to environmental conditions like buildings, roadside trees etc.