User's Manual

26
150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2.5 GHz
d = 1.167
d = 1.167
d = 2.333
Table 6 Recommended separation distances between portable and mobile
RF communications equipment and the EQUIPMENT or SYSTEM
for ME EQUIPMENT or ME SYSTEM that are not LIFE-SUPPORTING
Recommended separation distances
between portable and mobile RF communications equipment at the LS810-B.
The LS810-B is intended for use in an electromagnetic environment in which
radiated RFdisturbances are controlled. The customer or the user of the LS810-B
can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmittters) and the
LS810-B 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)
For transmitters rated at a maximum output power not listed above, the recommend
ed
separation distance d in metres (m) can be determined 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 4 These guidelines may not apply in all situations. Electromagnetic propagation
is affected by absorption and reflection from structures, objects and people.
0.01
0.1
1
10
100
N/A
N/A
N/A
N/A
N/A
0.117
0.369
1.167
3.690
11.67
0.233
0.738
2.333
7.377
23.33
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NOTE 1 At 80 MHz and 800 MHz, 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.
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 broad-
cast 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 LS810-B
is used exceeds the applicable RF compliance level above, the LS810-B should
be observed to verify normal operation. If abnormal performance is observe
d, additio-
nal measures may be necessary, such as re-orienting or relocating the LS810-B.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than
3V/m.
b