User's Manual

2/2020 CY-0090-018, Rev.A Page 44 of 49
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 E-VIVE device is used exceeds the applicable RF compliance level above, the e-vive
™
device should
be observed to verify normal operation. If abnormal performance is observed, additional measures may
be necessary, such as re orienting or relocating the e-vive
™
device.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 1 V/m.
RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE
RF COMMUNICATIONS EQUIPMENT AND THE
E
-
VIVE
The e-vive
™
is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the e-vive
™
can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the e-vive
™
as recommended below, according to the maximum output power of
the
communications
equipment.
Rated maximum output power
of transmitter
W
Separation distances according to frequency of the
transmitter
From 150 kHz
to 80 MHz
d = 1.2 √P
From 80
kHz to 800
MHz
d = 1.2 √P
From 800 MHz to
2.5 GHz
d = 2.3
√P
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
1 1.20 1.20 2.30
10 3.79 3.79 7.27
100 12.00 12.00 23.00
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 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 modified by
absorption and reflection from structures, objects and people.