Instruction manual

MTD 4000 Instruction Manual — Rev.M_11/19/14
15
Recommended separation distances between portable and mobile RF
communications equipment and the MTD 4000
The MTD 4000 is intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the MTD 4000 can help
prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the MTD 4000 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 at 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.
Guidance and manufacturer’s declaration
No. Mode Of
Operation
Essential Performance
Degradation Allowed
1 Unit tested to 230
VAC for CE
Unit tested to 120
VAC for
US/Canada
Unit designed to be failure safe
in abnormal condition
2 Unit provides
automatic
traction.
Reset allowed as long as
failure safe