ICOM 357000 Manuale Utente

Pagina di 124
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RADIO OPERATOR WARNING
W AR N IN G
Icom requires the radio operator to meet the 
FCC Requirements for Radio Frequency Expo-
sure. An omnidirectional antenna with gain not 
greater than 9 dBi must be mounted a mini-
mum of 5 meters (measured from the lowest 
point of the antenna) vertically above the main 
deck and all possible personnel. This is the minimum safe 
separation distance estimated to meet all RF exposure com-
pliance 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 verti-
cally 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 persons 
(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 al-
lowable 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 PERMISSIBLE EXPO-
SURE 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) RA-
DIUS 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 MAXI-
MUM GAIN OF 9dBi ARE USED FOR A SHIP MOUNTED 
SYSTEM.