Planmeca Viso Technical Manual page 37

Recommended separation distances between portable and mobile RF communications equipment
and Planmeca Viso X-ray unit
The Planmeca Viso X-ray unit is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the Planmeca Viso X-ray unit
can help prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the Planmeca Viso X-ray
unit 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
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.
Technical manual
Separation distance according to frequency of transmitter m
150 kHz to 80 MHz
d = 1,2 √P
0.12
0.38
1.2
3.8
12
1 General and technical data
80 MHz to 800 MHz
d = 1,2 √P
0.12
0.38
1.2
3.8
12
800 MHz to 2.5 GHz
d = 2,3 √P
0.23
0.73
2.3
7.3
23
Planmeca Viso 31