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Recommended separation distances
between portable and mobile RF communications equipment and the Badger LF
The Badger LF is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled.
The customer or the user of the Badger LF can help prevent electromagnetic interference by maintaining a mini
-
mum distance between portable and mobile RF communications equipment (transmitters) and the Badger LF as
recommended below,
according to the maximum output power of the communications equipment.
Rated maximum output power
of transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
80 MHz to 800 MHz
800 MHz to 2,5 GHz
P
d
2
.
1
=
P
d
2
.
1
=
P
d
3
.
2
=
0,01
0.12
0.12
0.23
0,1
0.38
0.38
0.73
1
1.20
1.20
2.30
10
3.79
3.79
7.27
100
12.00
12.00
23.00
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.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from struc
-
tures, objects and people.
GUIDANCE AND MANUFACTURER’S DECLARATION – ELECTROMAGNETIC IMMUNITY
The Badger LF is intended for use in the electromagnetic environment specified below. The customer or the user of the Badger LF should assure that
it is used in such an environment.
Immunity test
IEC 60601 test
level
Compliance
level
Electromagnetic environment
–
guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80
MHz
3 V/m
80 MHz to 2,5
GHz
3 Vrms
3 V/m
Portable and mobile RF communications equipment should be used no closer to any part of
the Badger LF, including cables, than the recommended separation distance calculated from
the equation applicable to the frequency of the transmitter.
Recommended separation distance
P
d
2
.
1
=
P
d
2
.
1
=
80 MHz to 800 MHz
P
d
3
.
2
=
800 MHz to 2,5 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 1 At 80 MHz and 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 Badger LF is
used exceeds the applicable RF compliance level above, the Badger LF should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orienting or relocating the Badger LF.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
EMC Information
