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Select a mounting location, checking for roof curvature to ensure that the antenna base will have a flat mounting
surface if possible. The antenna should be located as far as possible from surrounding roof mounted items (e.g.
light bar, air con unit). Ensure that there is adequate under panel clearance and that there is no double skin
panel or cross brace present. Measure to check for central position if applicable.
Important Note Regarding Sealing
To ensure that the antenna base is effectively sealed against the mounting surface, care must be
taken regarding curvature of the mounting panel. It is highly recommended that the antenna is
installed on a clean, flat and level surface. After installation the compression of the boot against
the mounting panel should be checked and if necessary, a small bead of neutral cure silicone
sealant can be applied around the edge of the mounting boot. It is important that the periphery of
the antenna is sealed and that no moisture is allowed to penetrate under the antenna boot.
3. Prepare and drill hole
Hole
Ø 25mm /1"
4. Fitting the antenna
Remove protective backing from underside of antenna, feed coaxial cables through panel. Position the antenna
over the hole ensuring correct orientation and stick to panel by applying firm, even, downward pressure. When
fitting the nut, it is important to ensure that the cables are held centrally whilst the nut is correctly started on the
threads. The nut should fit freely by hand and only requires a final tighten by spanner to a recommended torque
of 5Nm (3.6 ft/lbs). It is important not to over-tighten the nut as this may cause damage to the mounting panel.
1
Prepare mounting surface.
Drill hole etc. as per standard
instructions
4
Firmly press down on antenna to
affix to mounting surface, ensure that
seal skirt splays out into surface
Mask panel area around hole position to protect paintwork and
headliner. Drill a pilot hole, and then increase to 25mm (1"), ensuring
that the drill/cutter bit does not contact headliner. Clean area around
the hole, carefully removing any burrs and swarf. Remove paint and
primer from under panel surface to ensure low resistance contact by
washer and nut. Apply some petroleum jelly or paint around the hole
to prevent corrosion.
2
Remove nut, washer.
Remove pad liner
5
Assemble shakeproof washer
and nut tighten to 5Nm
(3.6ft/lbs)
3
Feed cables through hole
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