GB
25
REMARK 1
At 80 MHz and 800 MHz, the higher value applies.
REMARK 2
These guidelines may not be applicable in all situations. The
spread of electromagnetic waves is influenced by the absorptions and reflections of
buildings, objects and people.
a It is theoretically not possible to exactly determine the field strength of stationary
transmitters, e.g. base stations of mobile phones and public mobile radio services,
amateur stations, AM and FM radio and television stations. We recommend an
investigation of the location to determine the electromagnetic environment due
to stationary HF transmitters. If the determined field strength at the location of
the model DX6635 exceeds the above stated coincidence level, the model DX6635
must be monitored at each application location with respect to its normal
operation. If you notice unusual performance features, it might be necessary
to take additional measures, e.g. a new orientation or relocation of the model
DX6635.
b Not applicable above the frequency range from 150 kHz to 80 MHz.
Recommended safety distances between portable and mobile HF
telecommunication devices and the [DEVICE or SYSTEM]
The model DX6635 is designed for operation in an electromagnetic environment
with controlled HF disturbance variables. The customer or user of the model
DX6635 can thus help to prevent electromagnetic interferences by observing the
minimum distance between portable and mobile HF telecommunication devices
(transmitters) and the model - depending on the transmitting power of the
communication device as stated below.
Rated power
of the
transmitter
W
Safety distance dependent on the transmission frequency
150 kHz to 80
MHz outside
of ISM bands
150 kHz to 80
MHz inside of
ISM bands
80 MHz to 800
MHz
d = 1,2
P
800 MHz to
2.5 GHz
d = 2,3
P
0,01
N/A
N/A
0,12
0,23
0,1
N/A
N/A
0,38
0,73
1
N/A
N/A
1,2
2,3
10
N/A
N/A
3,8
7,3
100
N/A
N/A
12
23
For transmitters whose maximum rated power is not stated in the above table,
you can determine the distance using the equation that belongs to the respective
column, whereby P is the maxim rated power of the transmitter in watt (W)
according to the details provided by the transmitter manufacturer.
TECHNICHAL DATA AND SPECIFICATIONS
2634-09DST_M_GB_GebrAnw_Stirn_Ohrthermo_2.indd 25
27.04.09 09:11
