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3.2 LOCATION
(Refer to Figure8.)
Selection of a location for the antenna tuner
should be such that it is as close to the antenna as possi-
ble. Long "lead-in" wires greatly increase the possibili-
ty of creating radio frequency interference (RFI) with
other electronic equipment on the vessel. There are two
factory installed angle brackets attached to the bottom
of the antenna tuner for mounting purposes. Several
holes and slots are provided on each bracket. It is not
necessary to remove the brackets to mount the tuner.
NOTE
The dealer or installer must supply the
necessary stainless steel mounting hard-
ware.
GAEPS-30012-D
Figure 8. Antenna Tuner Housing
3.3
DRAIN SCREW REMOVAL
(Refer to Figure 9.)
The antenna tuner has provisions for selection of
one of two drain screws for removal of condensation.
One screw is positioned on the bottom of the housing,
and the other is on the end of the housing. Proper orien-
tation of the drain hole is essential for normal tuner
operation. Remove and discard one screw from the sur-
face that will be at the lowest position when the tuner is
mounted.
4
CAUTION
Regardless of antenna tuner mounting
position, the selected drain hole must face
downward.
ANTENNA
TUNER
7
?
GAEPS-30013-0
DRAIN SCREWS
Figure 9. Mounting Positions
3.4
GROUNDING
A good ground system is required for efficient
antenna tuner operation. Use the ground lug on the
antenna tuner for ground strap attachment. Ground
returns for the electrical circuits may be provided
through the deck or hull of the vessel if these are
metallic; otherwise, a copper strap four inches wide
should be installed from bow to stern. For more detailed
information
regarding
grounding,
refer
to. the
GROUND SYSTEMS section of this manual.
WARNING
Do not install the antenna tuner without
an adequate ground system.
3.5
CONTROL CABLE ASSEMBLY AND
INSTALLATION
The control cable must be field assembled. Table 3
lists the items required for assembly of the cable. Of
those parts listed, the connector kit and solder lugs are
supplied with the antenna tuner, but the 3-conductor
cable must be supplied by the dealer or the installer. The
following steps outline the control cable assembly and
installation procedure.
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