Apex Digital iCH Auto Instruction Manual page 27

iCH Auto/ English
Recommended separation distances between portable and mobile RF
communications equipment and this device:
This device is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of this device can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and this device as recommended below, according to the maximum output power of the
communications equipment
Rated maximum
output power
of transmitter
W
0.01
0.1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended separation
d
distance in meters (m) can be estimated 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.
Note 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects, and people.
Separation distance according to frequency of transmitter m
150 kHz to 80 MHz
=
d
0.1
0.31
1
3.1
10
80 MHz to 800 MHz
d =0.6
0.06
0.19
0.6
1.9
6
800 MHz to 2.7 GHz
d =1.2
0.12
0.38
1.2
3.8
12
24