Note1: At 80 MHz and 800 MHz, the higher frequency range applies.
Note2: 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 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 7E-B5 is used
exceeds the applicable RF compliance level above, the 7E-B5 should be
observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as reorienting or
relocating the aspirators.
b)Over the frequency range 150 kHz to 80MHz, field strengths should be
less than 3 V/m.
Table 4 Recommended separation distances
Recommended separation distance between portable and mobile RF
communications equipment and the 7E-B5
The 7E-B5 is intended for use in an electromagnetic environment in
which radiated RF disturbances are controlled. The customers or the
users of these YUWELL aspirators can help prevent electromagnetic
interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the 7E-B5 as
recommended below, according to the maximum output power of the
communications equipment.
Separation distance according to frequency of
transmitter in meter
150kHz~80MHz
d=1.2
150kHz~80MHz
d=1.2
Output Power of
Transmitter in
Watt
Separation distance according to frequency of
transmitter in meter
800MHz~2.5GHz
d=2.3
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7.3
100 12 12 23
For transmitters rated at a maximum output power not listed above, the
recommended separation distance d in meters (m) can be estimated
using the equation applicable to the frequency of the transmitter, where
P is the maximum output power rating of the transmitter in watts (W)
according to the transmitter manufacturer.
Note: At 80MHz and 800MHz, the separation distance for the higher
frequency range applies.
Note: These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from structures,
objects, and people.
All specifications and product configurations are subject to change without
notification.
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