Sony LMD-2451MD Mode D'emploi page 22

Guidance and manufacturer's declaration – electromagnetic immunity
The LMD-2451MD is intended for use in the electromagnetic environment specified below. The customer
or the user of the LMD-2451MD should assure that it is used in such an environment.
Immunity test
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
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 LMD-2451MD is used exceeds the applicable RF compliance level above, the LMD-2451MD should
be observed to verify normal operation. If abnormal performance is observed, additional measures may
be necessary, such as reorienting or relocating the LMD-2451MD.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
6
GB
IEC 60601 Compliance
test level level
3 Vrms 3 Vrms
150 kHz to
80 MHz
3 V/m 3 V/m
80 MHz to
2.5 GHz
Electromagnetic environment – guidance
Portable and mobile RF communications equipment
should be used no closer to any part of the
LMD-2451MD, including cables, than the
recommended separation distance calculated from
the equation appliance to the frequency of the
transmitter.
Recommended separation distance
d = 1.2 √P
d = 1.2 √P 80 MHz to 800 MHz
d = 2.3 √P 800 MHz to 2.5 GHz
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,
should be less than the compliance level in each
frequency range.
b
Interference may occur in the vicinity of equipment
marked with following symbol:
53
a