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Suggested defence distance between the portable and mobile RF
telecommunication equipment and
was designed for being operated within the electromagnetic environment where
HS112 C-1
RF disturbances are under control. Buyer or user of
disturbance between portable and mobile RF telecommunication systems (transmitters ) and
by defining the smallest possible defence distance depending on the maximum
HS112 C-1
output of the telecommunication transmitter which can be calculated as follows:
Maximum output of
the transmitter [W]
0,01
0,1
1
10
100
In case of transmitters with the highest output in the above table d defence distance (in meters) can be defined
with the equation depending on the frequency of the transmitter, where P stands for the maximum output (in
Watt) of the transmitter declared by its manufacturer.
st
1
Note: In case of 80 MHz and 800 MHz, the higher frequency range must be applied.
nd
2
Note: This guideline must not be used for each case. Electromagnetic transmission is influenced by
absorption and reflection caused by buildings, objects and people.
R-6730-EN02-E
HS112 C-1 User Manual
Defence distance depending on the frequency of the transmitter
150 kHz – 80 MHz
d=[3,5/V
]√P
1
0,1166
0,37
1,16
3,7
11,6
HS112 C-1
can avoid electromagnetic
HS112 C-1
m
80 MHz – 800 MHz
d=[3,5/E
]√P
1
0,1166
0,37
1,16
3,7
11,6
800 MHz – 2,5 GHz
d=[7/E
]√P
1
0,232
0,74
2,32
7,4
23,2
65/73
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