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Anexo A: Informações sobre compatibilidade eletromagnética
Radiated RF EM
Fields
IEC61000-4-3 10 V/m 80 MHz to 2,7 GHz
80 % AM at 1 kHz(4)
385-6000 MHz, 9-28V/m,
80% AM(1kHz) pulse mode
and other modulation
10V/m Recommended separation distance
d=
√
P 150kHz to 80MHz
d=0.6
√
P 80MHz to 800MHz
d=1.2
√
P 800 MHz to 2.7G Hz
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).b
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey ,a should be
less than the compliance level in each
frequency ranged.
Interference may occur in the vicinity
of equipment marked with the following
symbol:
NOTA 1
: U
T
is the a.c. mains voltage prior to the application of the test level
NOTA 2
: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTA 3
: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people
NOTA 4
: As bandas ISM (industriais, científicas e médicas) entre 0,15 MHz e 80 MHz utilizam as frequências 6,765 MHz
a 6,795 MHz; 13,553 MHz a 13,567 MHz; 26,957 MHz a 27,283 MHz; e 40,66 MHz a 40,70 MHz. As bandas de rádio
amador entre 0,15 MHz e 80 MHz utilizam as frequências 1,8 MHz a 2,0 MHz, 3,5 MHz a 4,0 MHz, 5,3 MHz a 5,4 MHz, 7
MHz a 7,3 MHz, 10,1 MHz a 10,15 MHz, 14 MHz a 14,2 MHz, 18,07 MHz a 18,17 MHz, 21,0 MHz a 21,4 MHz, 24,89 MHz a
24,99 MHz, 28,0 MHz a 29,7 MHz e 50,0 MHz a 54,0 MHz
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.