Recommended Separation Distances - EMS Piezon Master 400 Mode D'emploi

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Recommended separation distances

The Piezon Master 400 is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the Piezon Master 400 can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the Piezon Master 400 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 metres (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
150 kHz to 80 MHz
d = 1.2 √P
0.12 m
0.38 m
1.2 m
3.8 m
12 m
m
80 MHz to 800 MHz
d = 0.2 √P
0.12 m
0.38 m
1.2 m
3.8 m
12 m
Piezon Master 400
800 MHz to 2,5 GHz
d = 0.4 √P
0.23 m
0.73 m
2.3 m
7.3 m
23 m