10
Accessories
External Active Antenna
Positional accuracy and time to fix can be affected by obstructions such as tall
buildings, heavy foliage, large cliffs, and other situations where GPS satellite signals
are blocked. An external antenna provides better reception and faster time to fix
when operating in these conditions. Use only the GPA-18 external active
antenna with the S3 BTGPS Receiver.
CAUTION:
Use of other antennas may severely degrade performance
and/or damage the receiver, and will void the warranty.
Using the external antenna
Locate the external antenna port (MCX female) and then plug the connector
(MCX male) of external active antenna (optional accessory) into the external
antenna port. Place the external active antenna on the metal surface of the
roof or on the front top-surface of the dash board where it will not affect
driving safety. Connect and install the optional external active antenna into
position before driving. The GPS-18 active antenna has an embedded magnet
in its base for easy mounting on metal surfaces.
Caution:
Do not put antenna near materials that are sensitive to magnetic
fields, such as magnetic storage media like floppy diskettes and mechanical
wrist watches.