2: Installation
2-6
PRC1077-MSOP
Positioning the
Antenna
The AT-892/U 1.2m antenna is provided with a spring base to allow the
antenna to be oriented in other positions than vertical to the top of the
transceiver. For best communications the antenna should be vertical to the
ground (
refer to the figure on page 2-7
examples A and B). When the operator
or the transceiver is in a position other than vertical, position the antenna so
that it is vertical to the ground, however, if having the antenna in the vertical
position reveals the operator's location, the antenna can be positioned so that it
is horizontal to the ground (
refer to the figure on page 2-7
example C).
When the antenna is horizontal, the direction of communications is broadside
to the antenna. For best reception, position the communicating transceivers in
the same position (either horizontal or vertical).
CAUTION: Make sure the base is tight against the mount. Even a
small gap between the base and the mount can cause the antenna
to break leaving the threaded portion in the mount. The plastic
filling in the thread is designed to prevent the antenna from
unscrewing, however, if the plastic wears, vibration can cause the
antenna to become loose. Periodically tighten the antenna in the
mount.
