8
English
SAFETY
OPERATIONAL INSTRUCTIONS
AND TRAINING GUIDELINES
To ensure optimal performance and
compliance with the RF energy exposure
limits in the above standards and
guidelines, users should transmit no more
than 50% of the time and always adhere to
the following procedures:
Transmit and Receive
• To transmit (talk), push the Push-To-Talk
(PTT) button; to receive, release the PTT
button.
• Transmit only when people outside the
vehicle are at least the minimum lateral
distance away, as shown in Table 1, from
a properly installed, externally-mounted
antenna.
Table 1 lists the minimum lateral distance
for bystanders in an uncontrolled
environment from the transmitting antenna
at several different ranges of rated radio
power for mobile radios installed in a
vehicle.
Mobile Antennas
• Install antennas at the center of the roof
or the center of the trunk deck. These
mobile antenna installation guidelines
are limited to metal body vehicles.
• The antenna installation must addition-
ally be in accordance with:
a. The requirements of the antenna manu-
facturer/supplier
b. Instructions in the Radio Installation
Manual
Table 1: Rated Power and Lateral Distance
Rated Power of
Vehicle-installed
Mobile Two-way Radio
Minimum Lateral
Distance from
Transmitting Antenna
Less than 7 watts 8 inches
(20 centimeters)
7 to 15 watts 1 foot
(30 centimeters)
16 to 50 watts 2 feet
(60 centimeters)
51 to 110 watts 3 feet
(90 centimeters)
01_Safety.fm Page 8 Friday, May 3, 2002 11:38 AM
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