Jumper AngelSounds JPD-100S9, Руководство пользователя

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Fetal Doppler
18
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz
to 2,5
GHz 3 V/m
a. 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 metres (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
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.
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
Fetal Doppler
is used exceeds the applicable RF
compliance level above, the
Fetal Doppler
should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be
necessary, such as re-orienting or relocating the
Fetal Doppler
.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3
V/m.
A 1.4 Recommended Separation Distances