7
Recommended separation distances between portable and mobile RF communications equipment and the LMD-
DM30C/DM20C
The LMD-DM30C/DM20C is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
The customer or the user of the LMD-DM30C/DM20C can help prevent electromagnetic interference by maintaining a minimum
distance between portable and mobile RF communications equipment (Transmitters) and the LMD-DM30C/DM20C as recommended
below, according to the maximum output power of the communications equipment.
Rated maximum output power of transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
d
= 1.2
√
P
80 MHz to 800 MHz
d
= 1.2
√
P
800 MHz to 2.5 GHz
d
= 2.3
√
P
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters rated a maximum output power not listed above, the recommended separation distance
d
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.
Summary of Contents for LMDDM20C
Page 31: ...Sony Corporation ...
