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Field strengths from fixed RF
transmitters, as determined by
an electromagnetic site survey,
should be less than the
compliance level in each
frequency range.
Interference may occur in the
vicinity of equipment marked
with the following symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
1.
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
Model 005 is used exceeds the applicable RF compliance level above, the Model 005
should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the Model
005.
2.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 1
V/m.
3.
The ISM (industrial, scientific and medical) bands between 0.15 MHz 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.
Recommended Separation Distances Between
Portable and Mobile RF Communications Equipment and the HyperLight device
The HyperLight is intended for use in the electromagnetic environment in which radiated
disturbances are controlled. The customer or user of the HyperLight can help prevent
electromagnetic interference by maintaining a minimum distance between portable and
mobile RF Communications Equipment and the HyperLight recommended below, according
to the maximum output power of the communications equipment.
Immunity
Test
IEC 60601 Test
Level
Compliance
Level
Electromagnetic Environment
–
Guidance
Separation Distance According to Frequency of Transmitter
