95
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
Boaray 5000 C/D series is used exceeds the applicable RF compliance level above, the
Boaray 5000 C/D series should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting
or relocating the Boaray 5000 C/D series.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V/m.
Recommended separation distances between portable and mobile RF
communications equipment and the Boaray 5000 C/D series
Boaray 5000 C/D series is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the Boaray 5000
C/D series can help prevent electromagnetic interference by maintaining a minimum
distance between portable and mobile RF communications equipment (transmitters) and
the Boaray 5000 C/D series as recommended below, according to the maximum output
power of the communications equipment.
Rated
maximum
output of
transmitter
W
Separation distance/m according to frequency of transmitter
150 kHz
～
80 MHz
d =
P
2
.
1
80 MHz
～
800 MHz
d =
P
2
.
1
800 MHz
～
2.5 GHz
d =
P
3
.
2
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.
