Operator's Manual

3
MAXIMUM PERMISSIBLE EXPOSURE (MPE) LIMITS
RADIO OPERATOR WARNING
Do not transmit with this radio and antenna when persons are within the
MPE Radius of the antenna, unless such persons (such as the driver or radio
operator) are shielded from the antenna field by a grounded metallic barrier
(such as the user’s vehicle rooftop). The MPE Radius is the minimum
distance from the antenna axis that persons should maintain in order to avoid
RF exposure higher than the allowable MPE level set by the FCC.
FAILURE TO OBSERVE THESE LIMITS MAY ALLOW
THOSE WITHIN THE MPE RADIUS TO EXPERIENCE RF
RADIATION ABSORPTION WHICH EXCEEDS THE FCC
MAXIMUM PERMISSIBLE EXPOSURE (MPE) LIMIT. IT IS
THE RESPONSIBILITY OF THE RADIO OPERATOR TO
ENSURE THAT THE MAXIMUM PERMISSIBLE
EXPOSURE LIMITS ARE OBSERVED AT ALL TIMES
DURING RADIO TRANSMISSION. THE RADIO OPERATOR IS TO
ENSURE THAT NO BYSTANDERS COME WITHIN THE RADIUS OF
THE MAXIMUM PERMISSIBLE EXPOSURE LIMITS SHOWN BELOW.
Determining MPE Radius
THE MAXIMUM PERMISSIBLE EXPOSURE RADIUS HAS BEEN
ESTIMATED TO BE A RADIUS OF ABOUT 55 INCHES (OR 138 CM) FOR
THE VEHICULAR MOUNTED ANTENNA SYSTEMS, AND 77 INCHES (OR
195 CM) FOR BASE STATION MOUNTED ANTENNA SYSTEMS PER OET
BULLETIN 65 OF THE FCC. THIS ESTIMATE IS MADE ASSUMING THE
MAXIMUM CAPABLE POWER OF THE RADIO IS TRANSMITTED AND
ANTENNAS WITH A MAXIMUM GAINS OF 3 dBd ARE USED FOR
VEHICULAR MOUNTED SYSTEMS AND 6 dBd FOR BASE STATION
SYSTEMS.
A MAXIMUM 50% TRANSMIT DUTY CYCLE IS ASSUMED, DUE TO THE
PUSH-TO-TALK STATUS OF THIS MOBILE.