Schiller FRED PA-1 Series User Manual page 57

FRED PA-1
Distances according to the transmitter's frequency (m)
Max.
transmitting
power of the
between 150 kHz and 80
transmitter (W)
MHz outside of the ISM
0,01
0,1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended 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 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2 The ISM (industrial, scientific and medical) bands between 150 kHz and 80 MHz are 6,765 MHz to 6,795 MHz;
13,553 MHz to 13,567 MHz; 26,957 MHz to 27,283 MHz; and 40,66 MHz to 40,70 MHz.
NOTE 3 An additional factor of 10/3 has been incorporated into the formulae used in calculating the recommended
separation distance for transmitters in the ISM frequency bands between 150 kHz and 80 MHz and in the frequency range
80 MHz to 2,5 GHz to decrease the likelihood that mobile/portable communications equipment could cause interference if
it is inadvertently brought into patient areas.
NOTE 4 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
User Guide
7.4.3 Recommended minimum distances
The FRED PA-1
is possible to control radiated HF interferences. The user of the FRED PA-1
vent electromagnetic interferences by always keeping a minimum distance between
portable/mobile HF communication devices (transmitters) and the FRED PA-1
recommended minimum distances are listed in the following table according to the
transmitters' max. transmitting power.
3 5 ,

-------
d = P
3
between 150 kHz and
80 MHz within the ISM
frequency band
Not applicable
®
is intended to be used in electromagnetic environments in which it
12
----- - 
d = P
10
between 80 MHz and
frequency band
Not applicable
Technical Data
Electromagnetic interferences
12

----- -
d = P d
10
between 800 MHz and
800 MHz
0,12
0,38
1,2
3,79
12
7
7.4
®
can pre-
®
. The
23
----- - 
= P
10
2.5 GHz
0,23
0,73
2,3
7,27
23
Page 57