21
Conducted RF
lEC 61000-4-
6
Conducted RF
lEC 61000-4-
6
Radiated RF
lEC 61000-4-
3
3 Vrms
150 kHz to 80
MHz
6 Vrms
ISM
frequency
band
3 V/m
80 MHz to 2.7
GHz
3V
6V
3V/m
Portable and mobile RF
communications equipment should
be used no closer to any part of
the models Fi-E, including cables,
than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
d=1.2×P
1/2
d=2×P
1/2
d=1.2×P
1/2
80 MHz to 800 MHz
d=2.3×P
1/2
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
meters (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 I At 80 MHz end 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 measured field strength in
the location in which the model Fi-E is used exceeds the applicable RF compliance
level above, the model Fi-E should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the model Fi-E
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than
3V/m.
Table 4: Recommended separation distances between portable and
mobile RF communications equipment and the model Fi-E
Содержание Fi-E
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