Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3A/m
3A/m
Power frequency magnetic fields should be at leve
ls characteristic of a typical location in a typical
commercial or hospital environment.
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3V rms
15KHz to 80 MHz
3V/m
80MHz to2.5GHz
3V/m
3V/m
Portable and mobile RF communications equipment
should be used no closer to any part of this device,
including cables, than the recommended separation
distance calculated from 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 and d is the recommended separation
distance in meters (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey,*2)
should be less than the compliance level in each
frequency range.*3)
Interference may occur in the vicinity of
equipment marked with the following symbol:
NOTE 1: At 80 MHz and 800 MHz, 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.
1. Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast
cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due
to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field
strength in the location in which the device is used exceeds the applicable RF compliance level
above, the device should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as reorienting or relocating this device.
2. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
19
80 MHz to 800 MHz
800 MHz to 2,5 GHz
Recommended
separation distance