Rated
maximum
output of
transmitter
W
150 kHz to 80 MHz
outside ISM and
amateur radio bands
150 kHz to 80 MHz
in ISM and amateur
radio bands
180 MHz to 800
MHz
800 MHz to 2.7 GHz
Recommended separation distances between portable and mobile
RF communications equipment and the EQUIPMENT or SYSTEM -for
EQUIPMENT and SYSTEMS
Separation distance according to frequency of transmitter
m
Recommended separation distances between
portable and mobile RF communications equipment and the Infrared thermometer
The Infrared thermometer is intended for use in an electromagnetic environment in
which radiated RF disturbances are controlled. The customer or the user of the
Infrared thermometer can help prevent electromagnetic interference by maintaining
a minimum distance between portable and mobile RF communications equipment
(transmitters) and the Infrared thermometer as recommended below, according to
the maximum output power of the communications equipment
b. 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 cannot be predicted theoretically with accuracy.
To assess the electromagnetic environment due to fixed RF transmitters, an
electromagnetic site survey should be considered. If the measured field strength in
the location in which the Infrared thermometer is used exceeds the applicable RF
compliance level above, the Infrared thermometer should be observed to verify
normal operation. If abnormal performance is observed, additional measures may
be necessary, such as reorienting or relocating the Infrared thermometer.
c. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than
3V/m.
d=[ ] p
V
1
3.5
d=[ ] p
V
2
12
0.01
1
0.1
10
100
0.12
1.2
0.38
3.8
12
0.20
2.00
0.63
6.32
20.00
0.035
0.35
0.11
1.10
35
0.07
0.70
0.22
2.21
70
a. 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. The amateur radio bands between 0,15 MHz
and 80 MHz are 1,8 MHz to 2,0 MHz, 3,5 MHz to 4,0 MHz, 5,3 MHz to 5,4 MHz, 7
MHz to 7,3 MHz, 10,1 MHz to 10,15 MHz, 14 MHz to 14,2 MHz, 18,07 MHz to 18,17
MHz, 21,0 MHz to 21,4 MHz, 24,89 MHz to 24,99 MHz, 28,0 MHz to 29,7 MHz and
50,0 MHz to 54,0 MHz.
Summary of Contents for HW-F7
Page 18: ......
