AngelSounds JPD-100S (mini) Instrucciones página 161

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
Recommended separation distances between portable and
mobile RF communications equipment and the Fetal Doppler.
The Fetal Doppler is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled.
The customer or the user of the Fetal Doppler can help prevent
electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment
(transmitters) and the Fetal Doppler as recommended below,
according to the maximum output power of the communications
equipment.
b. Interference may occur in the
vicinity of equipment marked with
the following symbol:
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