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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.

Guidance and manufacturer’s declaration - electromagnetic immunity

The device is intended for use in the electromagnetic environment speciﬁed below. The customer
or the user of the device, should assure that it is used in such an environment.

Emission test

RF emissions
CISPR 11

Compliance

Electromagnetic environment – guidance

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.

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.

RF emission
CISPR 11

Class B

Harmonic emissions
IEC 61000-3-2

Not applicable

Voltage ﬂuctuations/
ﬂicker emissions
IEC 61000-3-3

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.

Rated maximum
output power of
transmitter (W)

Separation distance according to frequency of transmitter (m)

150 KHz to 80 MHz

80 MHz to 800 MHz

800 MHz to 2.7 GHz

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.

The MANUFACTURER should consider reducing the minimum separation distance, based on RISK
MANAGEMENT, and using higher IMMUNITY TEST LEVELS that are appropriate for the reduced
minimum separation distance. Minimum separation distances for higher IMMUNITY TEST LEVELS
shall be
calculated using the following equation:

NOTE If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting
antenna and the ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance is
permitted by IEC 61000-4-3.

a ) For some services, only the uplink frequencies are included.
b ) The carrier shall be modulated using a 50% duty cycle square wave signal.
c ) As an alternative to FM modulation. 50% pulse modulation at 18 Hz may be used because while
it does not represent actual modulation, it would be worst case.

Where P is the maximum power in W, d is the minimum separation distance in m, and E is the
IMMUNITY
TEST LEVEL in V/m.

Test
frequency
(MHz)

Band
(MHz)

Service

Modulation

Maximum
power
(w)

Distance
(m)

IMMUNITY
TEST LEVEL
(V/m)

385

450

710
745
780
810
870
930

430-470