16-8  EMC Guidance and Manufacturer’s Declaration 
TABLE 7 
RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE RF 
COMMUNICATION DEVICE AND THE SYSTEM 
Resona I9 series is intended for use in an electromagnetic environment in which radiated RF 
disturbance are controlled. The customer or the user of system can help prevent electromagnetic 
interference by maintaining a minimum distance between portable and mobile RF communication 
equipment (transmitters) and system as recommended below, according to the maximum output 
power of the communication equipment. 
Maximum 
of 
Transmitter 
(W) 
Separation Distance According to Frequency of Transmitter 
Out ISM and 
amateur radio 
bands 
d=1.2
 
in ISM and amateur 
radio bands 
 
d=2
 
 
 
   
d=1.2
 
 
 
 
d=2.3
 
For transmitters at a maximum output power not listed above, the recommended separation 
distanced in meters (m) can be determined using the equation applicable to the frequency of the 
transmitter, where P is the maximum output power rating of the transmitter in watts (W) according 
to the transmitter manufacturer.   
If system image distortion occurs, it may be necessary to position system further from sources of   
conducted RF noise or to install external power source filter to minimize RF noise to an acceptable 
level. 
Note 1: At 80 MHz and 800 MHz, the higher frequency range applies.   
Note 2: These guidelines may not apply in all situations. Electromagnetic propag
ation is affected by 
absorption and reflection from structures, objects and people.