37
Rated maximum
output power of
transmitter W
Separation distance according to frequency of transmitter m
150kHz to 80MHz
d=1.2XP
1/2
80MHz to 800MHz
d=1.2XP
1/2
800MHz to 2.5GHz
d=2.3XP
1/2
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) accordable 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.
Recommended separation distances between portable and mobile RF communications
equipment and the model.
Apex locator in the above specified electromagnetic environment, it will be safe, and
can provide the basic properties such as article 1.6.1-1.6.3;
1. Measurement of pulpitis, pulp necrosis, periapical periodontitis and tooth length.
2. Measurement of the tooth length before restoration of post crown.
3. Measurement of the tooth length of transplantation and retransplantation.