recommended safety distances between portable and mobile rf tele-
communication devices and the multi-function thermometer sfT 76
The multi-function thermometer SFT 76 is designed for use in an electromagnetic envi-
ronment in which RF disturbances are controlled. The customer or the user of the multi-
function thermometer SFT 76 can thus help to prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF telecommunication
devices (transmitters) and the multi-function thermometer SFT 76 - depending on the
communication device's power output as stated below.
Rated power
safety distance, depending on the transmission frequency
of the
m
transmitter
80 MHz to 800 MHz
W
d =
0.01
0.12
0.1
0.38
1
1.2
10
3.8
100
12
For transmitters whose maximum rated output is not stated in the above table, the
recommended safety distance d may be determined in metres (m) using the equation
applicable to the frequency of the transmitter, whereby P is the maximum rated output
of the transmitter in watts (W) according to the transmitter manufacturer.
noTe 1 At 80 MHz and 800 MHz the higher frequency range applies.
noTe 2 These guidelines may not be applicable in all cases. Electromagnetic propa-
gation is influenced by absorptions and reflections by buildings, objects and
people.
144 GB/MT
3,5
[
]
E
1
800 MHz to 2.7 GHz
7
[
]
d =
E
1
0.23
0.73
2.3
7.3
23