68
(50/60 Hz)
IEC 61000-4-8
be at levels characteristic of a typical
location in a typical commercial or
hospital environment.
Conducted RF
IEC61000-4-6
3 Vrms
150 kHz to 80MHz
3 Vrms
150 kHz to
80MHz
Portable and mobile RF communications
equipment should be used no closer to
any part of the Product, including cables,
than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
Radiated RF
IEC61000-4-3
3 V/m
80 MHz to 2.5GHz
3 V/m
80 MHz to
2.5GHz
Recommended separation distance
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 deter-mined 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)
U
т is the A.C. mains voltage prior to application of the test level.
Note2)
At 80 MHz and 800 MHz, the higher frequency range applies.
Note3)
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 the location in which the Product is used exceeds the
applicable RF compliance level above, the EUT should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as re-orienting or relocating the Product.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [V1] V / m.
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