User's Manual

BiWaze® Clear System - User Manual Page | 40
Radiated RF
IEC 61000-4-3
150 kHz to
80 MHz
6Vrms in ISM
bands
between
150KHZ to
80MHz
10 V/m
80 MHz to
2.7 GHz
6 Vrms
10 V/m
Portable and mobile RF communications equipment
should be used no closer to any part of the device,
including cables, than the recommended separation
distance calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance:
d = 1.2ÖP
d = 1.2ÖP 80 MHz to 800 MHz
d = 2.3ÖP 800 MHz to 2.7 GHz
where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter
manufacturer and d is the recommended separation
distance in meters (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey,
should be less than the compliance level in each
frequency range.
Interference may occur in the vicinity of equipment
marked with the following symbol.
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.
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 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 relocating the device.
Over the frequency range 150 kHz to 80 MHz, the field strengths should be less than 3 V/m.
12.2.1 Recommended Separation Distances between Portable and Mobile RF
Communications Equipment and This Device
BiWaze Clear is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of this control unit can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters)
and this control unit as recommended below, according to the maximum output power of the communications
equipment.
Rated Maximum Power
Output of
Transmitter
(Watts)
Separation Distance According to Frequency of Transmitter
(meters)
150 kHz to 80 MHz
outside ISM Bands
d = 1.2ÖP
80 MHz to 800 MHz
d = 1.2ÖP
800 MHz to 2.5GHz
d = 2.3ÖP
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 of 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.