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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 GL-01 is used exceeds the applicable RF compliance level above, the GL-01
should be observed to verify normal operation. If abnormal performance is observed, additional measures
may be necessary, such as re-orienting or relocating the GL-01.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and mobile RF communications equipment and the
GL-01
The GL-01 is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of the GL-01 can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the GL-01 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 a maximum output power not listed above, the recommended separation
distance
d
in metres (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.
