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ページを印刷するGuidance and manufacturer's declaration-electromagnetic immunity
ETH-102
The
is intended for use in the electromagnetic environment specified below.
ETH-102
The customer or the user of the
should assure that is used in such and environment.
Immunity test
IEC 60601 test level
Conducted RF
3 Vrms
IEC 61000-4-6
150 KHz to 80 MHz
Radiated RF
3 V/m
IEC 61000-4-3
80MHz to 2,5 GHz
NOTE1
At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE2
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
ETH-102
field strength in the location in which the
ETH-102
should be observed to verify normal operation. If abnormal performance is observed, additional measures my be
ETH-102
necessary, such as re-orienting or relocating the
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be les than 3 V/m.
21
Compliance level
Electromagnetic environment-guidance
Not applicable
Portable and mobile RF communications
equipment should be used no closer to any part
ETH-102
of the
including cables, than the
recommended separation distance calculated from
the equation applicable to the frequency of the
transmitter.
3 V/m
Recommended separation distance:
d = 1,2
P
d = 1,2
80MHz to 800 MHz
P
d = 2,3
800MHz to 2,5 GHz
P
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,
should be less than the compliance level in each
b
frequency range.
Interference may occur in the vicinity of equipment
marked with the following symbo
is used exceeds the applicable RF compliance level above, the
.
ETH-102
The
is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
The customer or the user of the
distance between portable and mobile RF communications equipment (transmitters) and the
below, according to the maximum output power of the communications equipment.
Rated maximum output
power of transmitter
W
, 0
1 0
0
1 ,
1
0 1
1
0 0
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (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.
NOTE1 At 80 MHz and 800 MHz, the separation di stance for the higher frequency range applies.
NOTE2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
a
Recommended separation distance between
portable and mobile RF communications equipment and the
ETH-102
can help prevent electromagnetic interference by maintaining a minimum
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
80 MHz to 800 MHz
d =1,2
d =1,2
P
P
N
A /
, 0
2 1
N
A /
, 0
8 3
N
A /
1
2 ,
N
A /
3
8 ,
N
A /
2 1
ETH-102
ETH-102
as recommended
800 MHz to 2,5 GHz
d =2,3
P
, 0
3 2
, 0
3 7
2
3 ,
7
3 ,
3 2
22