18
transmitter in watts(W) according to the transmitter manufacture and is the recommeded
separation distance in meters(m).
field strengths from fixed RF transmitters, as determined by and electromagnetic site survey,
should be less than the compliance level in each frequency range.
Interference may occur In the vivinity of equipment marked with the following symbol:
NOTE 1 At 80 MHz end 800 MHz. The higher frequency range applies.
NOTE 2 There guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people
.
Field strengths from fixed transmitters, such as base stations for radio(cellular/cordless) telephones and land
mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast connot be transmitters, and
electromagnetic site survey should be considered. If the measured field strength in the location in which the
model COMFORT-SONIC is used exceeds the applicable Rf compliance level above, the model COMFORT-
SONIC should be observed to verify normal operation. If abnormal performance is obeserved, additional
measures may be necessary, such as reorienting or relocating the model COMFORT-SONIC.
Over the frequency range 150kHz to 80MHz, field strengths should be less than 3V/m
.
Recommeded separation distances between
portable and mobile RF communications equipment and the model COMFORT-SONIC
The model COMFORT-SONIC is intended for using in an electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the model COMFORT-SONIC can be help
prevent electromagnetic interfernce by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the model COMFORT-SONIC as recommeded below, according
to the maximum output power of the communications equipment.
Rated maximum
output power of
transmitter W
Spearation distance according to frequency of transmitter m
150kHz to 80MHz
d= 1.2×P1/2
80MHz to
800MHz
d= 1.2×P1/2
800MHz to 2.5GHz
d= 2.3×P1/2
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters rated at a maximum output power not listed above, the recommeded separation distance d in
metters(m) can be estimated using the equation applicable to the frequency of the transmitter, wheare P is the
maximum output power rating of the transmitter in watts (W) accordable to the transmitter manufacture.
NOTE 1 At 80MHz and 800MHz. The separation distance for the higher frequency range applies.
NOTE 2 There guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
