Aoralscan 3_Manual_V1.0.0.30 - 18 -
a
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 Aoralscan 3 is used exceeds the applicable RF compliance level above, the
Aoralscan 3 should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or relocating the Aoralscan 3.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
c
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.
Guidance and manufacturer’s declaration–electromagnetic immunity
To limit exposure to electromagnetic interference from nearby equipment that can degrade
image quality or launch warning messages, it is necessary to position the Aoralscan 3 further from
sources of electromagnetic interference or install electromagnetic shielding to block unwanted
interference. The customer or the user of the Aoralscan 3 should operate the device under EMI
conditions that minimize power supply transients, mechanical interactions, vibration, and thermal,
optical, and ionizing radiation.
Separation distances
The Aoralscan 3 is intended for use in the electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the Aoralscan 3 can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the Aoralscan 3 as recommended below,
according to the maximum output power of the communications equipment.
Guidance and Manufacturer's Statement - Electromagnetic emission
Aoralscan 3 is intended to be used in the following electromagnetic environment. The purchaser or
user of Aoralscan 3 should ensure that it is used in this electromagnetic environment:
Rated maximum
output
power
of
transmitter (W)
Separation distance according to frequency of
transmitter (m)
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