ICOM ic-m402 User Manual

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Icom requires the radio operator to meet the
FCC Requirements for Radio Frequency
Exposure.  An omnidirectional antenna with
gain not greater than 9 dBi must be mounted
a minimum of 5 meters (measured from the lowest point
of the antenna) vertically above the main deck and all pos-
sible personnel. This is the minimum safe separation dis-
tance estimated to meet all RF exposure compliance
requirements.  This 5 meter distance is based on the FCC
Safe Maximum Permissible Exposure (MPE) distance of
3 meters added to the height of an adult (2 meters) and is
appropriate for all vessels. 
For watercraft without suitable structures, the antenna
must be mounted so as to maintain a minimum of 1 meter
vertically between the antenna, (measured from the lowest
point of the antenna), to the heads of all persons AND all
persons must stay outside of the 3 meter MPE radius.
Do not transmit with radio and antenna when persons are
within the MPE radius of the antenna, unless such per-
sons (such as driver or radio operator) are shielded from
antenna field by a grounded metallic barrier. The MPE
Radius is the minimum distance from the antenna axis that
person should maintain in order to avoid RF exposure
higher than the allowable MPE level set by 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 PER-
MISSIBLE 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.
Determining MPE Radius 
THE MAXIMUM PERMISSIBLE EXPOSURE (MPE)
RADIUS HAS BEEN ESTIMATED TO BE A RADIUS OF
ABOUT 3M PER OET BULLETIN 65 OF THE FCC.
THIS ESTIMATE IS MADE ASSUMING THE MAXIMUM
POWER OF THE RADIO AND ANTENNAS WITH A
MAXIMUM GAIN OF 9dBi ARE USED FOR A SHIP
MOUNTED SYSTEM.
i
W AR N IN G
RADIO OPERATOR WARNING