mcmurdo Smartfind M15, User Manual

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3.6 VHF Antenna Installation
The quality and positioning of the antenna is the most important
factor dictating AIS performance. It is recommended that a VHF
antenna with omni-directional vertical polarization and
specifically tuned for AIS operation band is used. Since the
range of VHF signals is largely decided by line of sight distance,
AIS antenna should be placed as high as possible and at least
5 meters away from any constructions made of conductive
materials.
When connecting the cable(s) with the Smartfind M15, take
note of the following precautions.
Excessive or tight bending of the cables may cause damage to
the inner wires and impair overall the performance.
DO NOT BEND CABLES