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(3) Recommended Separation Distances between Portable and Mobile RF
Communications Equipment and the NSI-III
Recommended Separation Distances between
Portable and Mobile RF Communications Equipment and the NSI-III
The NSI-III is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the NSI-III can help to prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the NSI-III 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]
150kHz to 80MHz
ｄ＝
1.2√𝑃
80MHz to 800MHz
ｄ＝
1.2√𝑃
800MHz to 2.5GHz
ｄ＝
2.3√𝑃
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 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 80MHz and 800MHz, 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.
(4) Essential Performance of Equipment
No.
Essential Performance
Operating Mode
1
Illumination is stably carried on, that is, it is lightened with
no blinking and no shading.
Illumination mode at DC input
