Apex Digital iCH Auto Instruction Manual page 26

iCH Auto/ English
3 V/m 80 MHz to 2.7
GHz
80 % AM at 1 kHz
Radiated RF EM
Fields 385-6000 MHz,
IEC61000-4-3 9-28V/m, 80%
AM(1kHz) pulse mode
and other modulation
NOTE 1: U is the a.c. mains voltage prior to the application of the test level
T
NOTE 2: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 3: 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 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 reorienting or relocating the device.
b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 10 V/m.
10 V/m 80 MHz to
2,7 GHz
80 % AM at 1 kHz
385-6000 MHz,
10V/m
9-28V/m, 80%
AM(1kHz) pulse
mode and other
modulation
frequency of the transmitter.
Recommended separation
distance
=
d
150kHz to 80MHz
d =0.6
80MHz to 800MHz
d =1.2
800 MHz to 2.7GHz
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 ranged.
Interference may occur in the
vicinity of equipment marked
with the following symbol:
23
b