Integra CUSA NXT, Operator'S Manual

Page: 104 / 113

Appendix A • Technical Specifications •
97
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 CUSA NXT System is used exceeds the
applicable RF compliance level above, the CUSA NXT System should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as re-orientating or relocating the
CUSA NXT System.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between
portable and mobile RF communications equipment and the CUSA NXT System
The CUSA NXT System is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the CUSA NXT System can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and
the CUSA NXT System as recommended below, according to the maximum output power of the communications
equipment.
Rated maximum output power of
transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2,5 GHz
0.01 0.12 m 0.12 m 0.24 m
0.1 0.38 m 0.38 m 0.76 m
1 1.2 m 1.2 m 2.4 m
10 3.8 m 3.8 m 7.6 m
100 12 m 12 m 24 m
For transmitters rated at maximum output power not listed above, the recommended separation distance d in
metres (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 1 At 80 MHz and 800 MHz, the separation distance for 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.