6
EMC information
6-6
KnightStar 330
User’s Manual
Y-500009-00 Rev. J (6/06)
Table 6-4: Recommended separation distances
Recommended separation distances between portable and mobile RF
communications equipment and the
KnightStar 330
The
KnightStar 330
is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the
KnightStar 330
can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and the
KnightStar 330
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
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters rated at 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.
•
At 80 MHz and 800 MHz, the separation distance for the higher
frequency range applies.
•
These guidelines may not apply in all situations.
Electromagnetic propagation is affected by absorption and
reflection from structures, objects, and people.
d
1.2
P
=
d
1.2
P
=
d
2.3
P
=
