Radio Option - Whelen Engineering Company IPS 400 Product Manual

5.7 Radio Option

Locate the antenna so that it is clear of any obstructions. Ground the antenna bracket using a minimum of 4 AWG
copper wire to a suitable earth ground.
If the unit is equipped with a transmitter, a coax protector has been provided. The protector is shipped in the
battery compartment. Locate the protector as close as possible to where the antenna cable enters the cabinet. The
mounting hardware is included with the protector.
Loosely coil and secure any excessive antenna cable inside the cabinet. Be careful not to crimp the cable or create
any sharp bends. After the protector is installed and all of the radio connections made, the antenna may be
trimmed.
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