Appendix
NXT Go Owner’s Manual, LBL-00145, MAN2030
120
1970 MHz
28 V/m
2450 MHz
9 V/m
5240/5500/
5785 MHz
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 NXT is used exceeds the applicable RF compliance level
above, the NXT should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as
reorienting or relocating the NXT.
b.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3
V/m.
Table 19: Guidance and Manufacturer’s Declaration – Electromagnetic Immunity
Recommended Separation Distances between Portable and Mobile RF
Communications Equipment and the NXT
The NXT is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the NXT can help prevent
electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the NXT as recommended
below, according to the maximum output power of the communications equipment.
WARNING
: Portable RF communications equipment (including peripherals such as
antenna cables and external antennas) should be used no closer than 30cm (12 inches) to
any part of the NXT system, including cables specified by the manufacturer. Otherwise,
degradation of the performance of this equipment could result.
Rated Maximum
Output Power
of Transmitter
W
Separation Distance According to Frequency of Transmitter
m
150 kHz to 80 Hz
d=1,17
√𝑷
80 MHz to 800 MHz
d=1,17
√𝑷
800 MHz to 2.5 GHz
d=2,33
√𝑷
0.01
0,12
0,12
0,23
0,1
0,37
0,37
0,74
1
1,17
1,17
2,33
10
3,70
3,70
7,37
Status DRAFT Effective
