Recommended protective distances between portable as well as mobile HF
telecommunication devices and the ERGO-FIT product
Products made by ERGO-FIT are designed for operation in an electromagnetic
environment where HF disturbances are controlled. To avoid electromagnetic
interference, make sure to maintain the minimum distance between portable as well
as mobile HF telecommunication devices and the ERGO-FIT product - depending on
the output power - as indicated below.
Power output of
the sender / W
Protective distance depending on transmission frequency
/ m
150 kHz to 80 MHz
d = 3,5/V1*sqrtP
150 kHz to 80 MHz
d = 3,5/E1*sqrtP
150 kHz to 80 MHz
d = 7/E1*sqrtP
0,01
0,12
0,12
0,23
0,1
0,37
0,37
0,74
1
1,17
1,17
2,33
10
3,69
3,69
7,38
100
11,67
11,67
23,33
For senders whose maximum nominal output is not listed in the table shown above,
the recommended protective distance d (in metres) may be calculated by using the
equation belonging to the respective column, whereas P is the maximum nominal
output of the sender (in Watts) indicated by the manufacturer of the sender.
Please note:
⊗
With 80 MHz and 800 MHz, the higher frequency range is applied.
⊗
These guidelines may not be applicable in all cases. The propagation of
electromagnetic parameters is influenced by absorption and reflection of
buildings, objects and persons.
CARDIO LINE 400/400 MED
Technical and optical modifications as well as misprints reserved -
© 2011
by ERGO-FIT GmbH & Co. KG
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