Publicité
Note 1: At 80 MHz and 800 MHz frequency points, the higher frequency band formula is
used.
Note 2: These guidelines may not be suitable for all situations. Electromagnetic propagation is
affected by absorption and emission from buildings, objects and humans.
a: Fixed transmitters, such as base stations for wireless (cellular/cordless) telephones
and terrestrial mobile radios, business radios, AM and FM radio broadcasting, and TV
broadcasting. The field strength cannot be accurately predicted theoretically. In order to
assess the electromagnetic environment of fixed radio frequency transmitters, the survey
of electromagnetic fields should be considered. If the measured field strength of the place
where the product is located is higher than the above-mentioned applicable radio frequency
compliance level, the product should be observed to verify its normal operation. If abnormal
performance is observed, supplementary measures may be necessary, such as re-adjusting
the direction or position of the product.
b: In the entire frequency range of 150 kHz–80 MHz, the field strength should be less than
3 V/m.
Recommended isolation distance between portable and mobile RF communication
equipment and this product or system – for non-life support equipment or
systems.
In the formula:
P-According to the
maximum rated
output power of the
transmitter provided
by the transmitter
manufacturer, nwatts;
d-Recommended
isolation distance,
in meters, the field
strength of the fixed
radio frequency
transmitter is deter-
mined by surveying
the electromagnetic
fields, and in each
frequency range b
should be lower than
the compliance level.
Interference may
occur in the vicinity
of equipment marked
with the following
symbols.
32
EN
Publicité
