7
1.2 LED Indicator
1.3 External Antenna
Basically, you don't need external antenna to perform GPS
positioning with HI-303
III
since it already build-in active
antenna. HI-303
III
can receive good satellite signal without
external antenna even using in car dashboard or side window.
The only condition that you need external antenna is when
HI-303
III
can not directly "see" the sky, For instance, when you
are in the middle of a car, or any environments that GPS signal
is blocked, the external GPS antenna will help to receive
better GPS signal.
Plug the external antenna with MMCX connector to the
plug on the side of HI-303
III
. Place the magnetic external
antenna on the roof of the car or outdoor open-space, and
make sure place it in correct direction. That is, the side with
magnetic is the bottom side, and the upper side must face to
sky in order to receive better signal.
Notice:
Hold the antenna connector while you plug the external antenna
into HI-303
III
or unplug the external antenna from HI-303
III
. Do not
pull the cable line.
LED off
LED on
LED flashing
Receiver switch off
Position Fixed
Signal searching