Sony AC-300MD Instructions For Use Manual page 17

Guidance and manufacturer's declaration - electromagnetic immunity
The AC-300MD is intended for use in the electromagnetic environment specified below. The customer or the user of the AC-300MD
should assure that it is used in such as environment.
IEC 60601 test
Immunity test
level
Conducted RF 3 Vrms
IEC 61000-4-6 150 kHz to 80 MHz
Radiated RF 3 V/m
IEC 61000-4-3 80 MHz to 2.5 GHz
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.
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 AC-300MD is used exceeds the applicable RF compliance level above, the AC-300MD should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or
relocating the AC-300MD.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Compliance level
Portable and mobile RF communications equipment should be
used no closer to any part of the AC-300MD, including cables,
than the recommended separation distance calculated from the
equation appliance to the frequency of the transmitter.
Recommended separation distance
3 Vrms d = 1.2
3 V/m d = 1.2
d = 2.3
Where P is the maximum output power rating of the transmitter
in watts (W) according to the transmitter manufacturer and d is
the recommended separation distance in meters (m).
Field strengths from fixed RF transmitters, as determined by an
electromagnetic site survey,
level in each frequency range.
Interference may occur in the vicinity of equipment marked with
following symbol:
Electromagnetic environment-guidance
80 MHz to 800 MHz
800 MHz to 2.5 GHz
a
should be less than the compliance
b
GB
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