Appendix
NXT Owner’s Manual, NXT-UM01, MAN2010
116
Recommended Separation Distances between Portable and Mobile RF
Communications Equipment and the NXT
The NXT is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the NXT can help prevent
electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the NXT as recommended
below, according to the maximum output power of the communications equipment.
WARNING
: Portable RF communications equipment (including peripherals such as
antenna cables and external antennas) should be used no closer than 30cm (12 inches) to
any part of the NXT system, including cables specified by the manufacturer. Otherwise,
degradation of the performance of this equipment could result.
Rated Maximum
Output Power
of Transmitter
W
Separation Distance According to Frequency of Transmitter
m
150 kHz to 80 Hz
d=1,17
√𝑷𝑷
80 MHz to 800 MHz
d=1,17
√𝑷𝑷
800 MHz to 2.5 GHz
d=2,33
√𝑷𝑷
0.01
0,12
0,12
0,23
0,1
0,37
0,37
0,74
1
1,17
1,17
2,33
10
3,70
3,70
7,37
100
11,70
11,70
23,30
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 structures, objects
and people.
Table 18: Separation Distances between Portable and Mobile RF
Communications Equipment and the NXT
