Dentsply Maillefer X-SMART DUAL Manual Del Usuario página 29

1. At 80 MHz and 800 MHz, the working clearance for the higher frequency range
applies.
2. The field strength from stationary 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 accurately determined. To determine
the electromagnetic environment due to fixed RF transmitters, and electromagnetic
site survey should be considered. If the measured field strength in the location in
which the device is used exceeds the applicable RF compliance level above, the
device should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orienting or re-
positioning the device.
3. Above the frequency range 150 kHz to 80 MHz, field strengths should be less than
3 V/m.
Recommended working clearances between portable and mobile RF communication
X
-SMART
device and the
TM
X
-SMART
The
radiated RF disturbances are controlled. The customer or the user of the
Dual can help prevent electromagnet interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and the
TM
SMART Dual as recommended below, according to the maximum output power of the
communications equipment.
Nominal transmitter
output [W]
0,01
0,1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended
working clearance d in metres (m) can be determined 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 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.
NVG / F190294X / 06 / 2007 –updated 08/2009
TM
Dual
Dual is intended for use in an electromagnetic environment in which
Working clearance according to transmission frequency [m]
150 kHz to 80 MHz
d = 0.35
0,04
0,11
0,35
1,1
3,5
80 MHz to 800 MHz
P
d = 0.35
0,04
0,11
0,35
1,1
3,5
800 MHz to 2.5 GHz
P
d = 0.7
0,07
0,22
0,7
2,2
7
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TM
X
-SMART
X
-
P