Voxson gps400 ユーザーガイド
Troubleshooting
GPS400 User Manual
35
My GPS400 keeps saying “Signal too low”
This is commonly caused by obstruction of the GPS receiver in the form of overhead bridges, tunnels, tall
buildings, severe weather conditions, dense tree cover, etc. The signal level being transmitted from the
GPS satellites is extremely low and although the GPS400 is fitted with a highly sensitive antenna, it is still
GPS satellites is extremely low and although the GPS400 is fitted with a highly sensitive antenna, it is still
essential that the unit has a clear view of as much of the sky as possible. If your unit continually loses
signal, check the installation location in the car. It may be necessary to use an optional external antenna
to achieve better signal reception in your particular vehicle application.
to achieve better signal reception in your particular vehicle application.
Please note that when you first turn your GPS400 unit on in an open area, it may take up to 15 minutes to
receive adequate signal. This time may be greatly increased if you are moving during the initial signal
receive adequate signal. This time may be greatly increased if you are moving during the initial signal
acquisition.
TIP: To decrease the signal acquisition time it is a good idea to leave the GPS400 switched on whilst you
are driving even when you are not using it to navigate. That way, the unit is in constant
communication with the satellites and when you do need to enter a destination, the GPS400 will
already know where you are.
already know where you are.