vi MTM700 Mobile Terminal / Basic Service Manual Product Safety and RF Exposure
COMPLIANCE AND CONTROL GUIDELINES AND
OPERATING INSTRUCTIONS FOR MOBILE RADIOS
To ensure optimal performance and compliance with the RF energy exposure limits in the above
standards and guidelines, 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.
Note: Table 1 lists the minimum lateral distance for bystanders in an uncontrolled environment from
the transmitting types of antennas, (i.e. monopoles over a ground plane, or dipoles) at several
different ranges of rated radio power for mobile radios installed in a vehicle.
Table 1 Rated Power and Lateral Distance
Mobile Antennas
• Antennas should be installed in locations that assure the recommended separation distance to
any person outside or inside the vehicle.
• Install antennas at the center of the roof or the center of the trunk deck, taking into account the
bystander exposure conditions of back-seat passengers.
• These mobile antenna installation guidelines are limited to metal body motor vehicles or vehicles
with appropriate ground planes.
• Antennas should be installed in locations that assure the recommended distance to any person
in Table 1. For example, if a trunk does not provide a 1 foot separation to the passenger or
bystander, then another location should be selected.
• The antenna installation must additionally be in accordance with:
a) The requirements of the antenna manufacturer
b) Instructions in the Radio Installation Manual
Rated Power of
Vehicle-installed
Mobile Two-way
Radio
Minimum Lateral
Distance from
Transmitting Antenna
Less than 7 Watts 20 cm (8 Inches)
7 to 15 Watts 30 cm (1 Foot)
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