SD3 Series Ultrasonic Pocket Doppler User Manual EMC Information
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A3.3 Electromagnetic Immunity
Guidance and manufacture’s declaration – electromagnetic immunity
The SD3 Series Ultrasonic Pocket Doppler is intended for use in the electromagnetic environment
specified below. The customer or the user of the device should assure that it is used in such an
environment.
Electromagnetic environment-guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz ~ 80 MHz
6Vrmsc)in ISM bands
between
0,15 MHz and 80 MHz
3 V/m
80 MHz to 2.7 GHz
3 Vrms
150 kHz to 80
MHz
6Vrmsc)in ISM
bands between
0,15 MHz and
80 MHz
3 V/m
80 MHz to 2.7
GHz
Portable and mobile RF communications
equipment should be used no closer to any
part of the SD3 Series Ultrasonic Pocket
Doppler, including cables, than the
recommended separation distance
calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance:
800 MHz to 2.7 GHz
d=6 /E at RF wireless
communications equipment bands
(Portable RF communications equipment
(including peripherals such as antenna
cables and external antennas) should be
used no closer than 30 cm (12 inches) to
any part of the SD3 Series Ultrasonic
Pocket Doppler, including cables
specified by the manufacturer).
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 metres (m).
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
survey,a should be less than the
compliance level in each frequency
range.b
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.