iv
The table below lists the minimum distance for several different ranges of rated radio power.
Mobile Antenna Installation
Install the vehicle antenna external to the vehicle and in accordance with:
a.
The requirements of the antenna manufacturer/supplier
b.
Instructions in the radio installation manual.
Control Station Operation
When radio equipment is used to operate as a control station, it is important that the antenna be
installed outside the building and away from places where people may be in close proximity.
OPERATIONAL WARNINGS
Potentially explosive atmospheres
Blasting caps and areas
Table 1 Rated Power and Distance
Rated Power of Vehicle-Installed
Mobile Two-Way Radio
Minimum Distance from
Transmitting Antenna
7 to 15 Watts
30.5 cm (1 Foot)
16 to 50 Watts
61 cm (2 Feet)
More than 50 Watts
91.5 cm (3 Feet)
NOTE
Refer to Table 1 for rated power and minimum distance values for transmitting
antennas.
WARNING: Turn off your Two-Way radio when you are in any area with a potentially explosive
atmosphere, unless it is a radio type especially qualified for use in such areas. Sparks in a
potentially explosive atmosphere can cause an explosion or fire resulting in bodily injury or
even death.
WARNING: To avoid possible interference with blasting operations, turn off your radio when
you are near electrical blasting caps. In a “blasting area” or in areas posted “turn off two-
way radio”, obey all signs and instructions.
NOTE
The areas with potentially explosive atmospheres referred to above include fuelling areas
such as: below decks on boats; fuel or chemical transfer or storage facilities; areas where
the air contains chemicals or particles, such as grain, dust or metal powders; and any other
area where you would normally be advised to turn off your vehicle engine. Areas with
potentially explosive atmospheres are often but not always posted.
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