1-15
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 Welch Allyn KleenSpec® Corded Illumination System is used
exceeds the applicable RF compliance level above, the Welch Allyn KleenSpec® Corded
Illumination System should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as reorienting or relocating the Welch Allyn
KleenSpec® Corded Illumination System.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
d= (2.33)
800 MHz to
2.5 GHz where
P
is the
maximum output power
rating of the transmitter in
watts (W) and
d
is the
recommended separation
distance in meters (m).
Field strengths from fixed
RF transmitters, as
determined by an
electromagnetic site
survey
a
, 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:
P
Содержание KleenSpec 789 Series
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