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3 V/m
80 MHz - 2.7
GHz
80 % AM at 1
kHz
Radiated RF
EM
380 - 5800
Fields
MHz,
IEC61000-4-3
9-28 V/m,
Pulse
modulation or
FM ±5 kHz
deviation ,
(1kHz sine)
NOTE 1: U
is the a.c. mains voltage prior to the application of the test level
T
NOTE 2: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 3: 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 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 the device.
b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 10 V/m.
10 V/m
80 MHz - 2.7
GHz
10 V/m
80 % AM at 1
80 MHz - 2.7 GHz
kHz
80 % AM at 1 kHz
380 - 5800
380 - 5800 MHz,
MHz,
9-28 V/m,
9-28 V/m,
Pulse modulation
Pulse
or FM ±5 kHz
modulation or
deviation, (1kHz
FM ±5 kHz
sine)
deviation,
(1kHz sine)
distance
= √ �� 150kHz to 80MHz
=0.6 √ �� 80MHz to
800MHz
=1.2 √ P 800 MHz to
2.7GHz
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
a
survey ,
should be less
than the compliance level in
each frequency ranged.
Interference may occur in
the vicinity of equipment
marked with the following
symbol:
107
b
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