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NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
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 re-orienting
or relocating the device.
B Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3
V/m.
Guidance and manufacture’s declaration – electromagnetic emission
The device is intended for use in the electromagnetic environment specified below. The customer
of the user of the device should assure that it is used in such an environment.
Electromagnetic environment – guidance
RF emissions
CISPR 11
Group 1
The device use RF energy only for its internal function.
Therefore, its RF emissions are very low and are not likely
to cause any interference in nearby electronic equipment.
RF emission
CISPR 11
Class B
The device is suitable for use in all establishments, including
domestic establishments other than domestic and those
directly connected to the public low-voltage power supply
network that supplies buildings used for domestic purposes.
Harmonic
emissions IEC
61000-3-2
Not applicable
Voltage
fluctuations/
flicker emissions
IEC 61000-3-3
Not applicable
Recommended separation distances between
portable and mobile RF communications equipment and the device
The device is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the device can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the device as recommended below, according to the maximum output
power of the communications equipment.
power of transmitter (W)
Separation distance according to frequency of transmitter (m)
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