24 Annex
Instruction Manual Myopia Master® (G/68100/EN Rev04 0820) 87 / 92
Recommended separation distances between portable and mobile
RF communications equipment and the Myopia Master®,
IEC 60601-1-2:2007, table 6
The Myopia Master® in intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the Myopia Master® can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters)
and the Myopia Master® as recommended below, according to the maximum output power of the communica-
tions equipment.
Rated maximum output pow-
er 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 3.80 3.80 7.3
100 12 12 23
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.
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