14 | Installation
1/4 inch diameter hole on a horizontal mounting surface
and drill the four mounting screw holes as shown.
Fasten the antenna by using 2-mm size stainless steel
metric screws (4 places). Use a marine grade caulking
compound to seal between the mounting surface and the
bottom of the antenna housing.
Choose a location for the antenna that has a clear view
of the sky. Make sure there are no major obstructions
or metal fixtures in the immediate proximity to the
antenna. The GPS antenna relies on direct ‘line-of-sight’
signal reception. If you are unsure if the chosen location
is suitable, it is advisable to mount the antenna in a
temporary manner to verify correct operation.
MX521 Surface Mount
2 mm mounting
screws (4 places)
Recommended
clearance under
the antenna
Mounting
surface
5 1/4
"
5.0”
1
6
9
1 0
2
3
8
4
7
5
5 1/4”
2 mm screw
(4 places)
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