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Rated maximum

output power of

transmitter

Separation distance according to frequency of transmitter m

150 kHz to 80 MHz

d = 1.2

80 MHz to 800 MHz

d = 1.2

800 MHz to 2.7 GHz

d = 2.3

0.01

0.12

0.23

0.1

0.38

0.73

1.2

2.3

3.8

7.3

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.

• Guidance and manufacturer’s declaration – electromagnetic immunity

The device is intended for use in the electromagnetic environments listed below, and should only be used

in such environments:

Immunity test

IEC 60601 test level

Compliance

level

Electromagnetic environment –

guidance

Conducted RF
IEC 61000-4-6

Radiated RF
IEC 61000-4-3
(Proximity fields
from RF wireless
communications
equipment
IEC 61000-4-3)

3V rms
At 0.15-80 MHz

6V rms
At ISM & Radio Amateur
Freq.

10 V/m at 80-2700 MHz
AM Modulation And
9-28V/m at 385-6000MHz,
Pulse Mode and other
Modulation. The system
shall be tested as specified
in IEC60601-1-2 Table 9 for
proximity fields from RF
wireless communications
equipment using the test
methods specified in IEC
61000-4-3

3V rms
At 0.15-80 MHz

6V rms
At ISM & Radio Amateur
Freq.

Portable and mobile RF communications
equipment should be used no closer to any
part of the device, including cables, than the
recommended separation distance calculated
from the equation applicable to the frequency of
the transmitter.

Recommended separation distance
d = 1.2

d = 1.2

80 MHz to 800 MHz

d = 2 .3

800 MHz to 2.7 GHz

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 metres (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey, a
should be less than the compliance level in each
frequency range.b
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.
a. 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 mea-

sured 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 the device.

b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

• Recommended separation distances between portable and mobile RF communication equipment

and the device.

The device is intended for use in an electromagnetic environment where radiated RF disturbances are

under control. User can help prevent electromagnetic interference by keeping the device at a minimum

distance from portable and mobile RF communications equipment (transmitters). The table below details

the maximum output power of transmitter: