Navigation Instruments

1. GPS problems

when you can not receive the signal, please pay attention to some reasons as follows:
A.please ensure there is no shelter in the sky
B. The weather is bad
C. shelters too many (big buidings, membranes vehicle exploded ban, tunnels, viaducts, etc. trees.)
D. There are other enquipments wireless.
E. For explosion-proof membrane and screen Whith high temperature

2.What can I do that the card is lost during formatting?

There are card data backup in the CD-ROM.You to extract the data folder "GPS map" in the CD-ROM into the card.After insert the card into the GPS navigation system and Disengagement the requirements of the system activation code, then enter the correct (ask your dealer for him) on the advice that the reactive navigation system.

3.Why standby time of the navigation instrument is sometimes too short?

A: The duration of the lithium battery varies with temperature changes of the environment and service conditions.If the ambient temperature is too low or too high, the battery life will affected.It is recommended that device at room temperature.
B: When the device is used, larger screen navigation device requires more electricity.In most affected by the increase in volume, sound field special effects, and other factors such as operating frequency, battery life may be different from that specified a certain extent.When the device is used in the car, it is recommended to connect the car charger and charge the device during use.

4.How long is the position ended after he?

the browser must meet the requirement for positional parameters with 60 at the same point under clear sky.But time position is affected sometimes by factors such as the satellite signal sheller.SA interfere (block- off the mountain or building) the climate, environment etc.

5.Why positioning does sometimes take more time?

The time of the position may be longer in the following situations:
Uneven distribution of GPS satellites on the local area
B GPS signal can not pass through opaque solids, and the signal reception is disturbed above as shelter building, tunnel, trestle, tree, etc. vehicle cone-top ban, and the weather: overcast and rainy day.
C reception of GPS signals would also be affected and reduced by thick or tear sheet that contains a moral element.

6.Is it at the reception of GPS satellite signal with the browser?

Yes, the GPS signal is free of charge.

7.Why is that some video files can be read, while others of similar size can not be played?

Incompatibility can occur because there are different modes of compilation and resolutions for files with the same format websites.All aware that you have to do is convert the format using the tool of conversation on the attached recommended the disc before playing.

8.How on the accuracy of the browser?

The accuracy of GPS, which comes from the technical position of the U.S. Army statellite is completely influenced by the precision of GPS satellites signal.According U.S. official data, the accuracy is within 10 minutes meters, and often it can be more accurate in 6 meters at more than 90%.

9.How to do in case of abnormal termination of the