HeartCare LOX100A Manuel De L'utilisateur page 12

Where:
P - The transmitter's maximum rated output power, in watts (W),
provided by the transmitter's manufacturer;
d - Recommended isolation distance in meters (m) b.
The field strength of a fixed RF transmitter is determined by a survey of
electromagnetic locations c, which should be lower than the compliance
level in each frequency range d.
Interference may occur near equipment marked with the following
symbol:
Note 1: The higher frequency band formula is used at the frequency of
80 MHz and 800 MHz.
Note 2: The guide may not apply to all situations. Electromagnetic
propagation is affected by the absorption and reflection of buildings,
objects and the human body.
a. The field strength of a fixed transmitter, such as base stations for
wireless (cellular/cordless) phones and terrestrial mobile radios,
amateur radio, AM and FM radio broadcasts and television broadcasts,
cannot be accurately predicated in theory. Survey of electromagnetic
sites should be considered to assess the electromagnetic environment
of fixed RF transmitters. If the measured field strength of the place
where the product is located at is higher than the above applicable
RF compliance level, the product should be observed to verify that it
can work properly. If abnormal performance is observed, additional
measures may be necessary, such as readjusting the orientation or
location of the product.
b. The field strength should be below 3 V/m over the frequency range of
150 KHz ~ 80 MHz.
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（4）
Recommended isolation distances between portable and mobile RF
communication equipment and this product
This product is intended for use in electromagnetic environments where
radio frequency radiation harshness is controlled. Depending on the
maximum rated output power of communication device, the purchaser
or user of this product can prevent electromagnetic interference by
maintaining the following recommended minimum distance between
the portable and mobile RF communication equipment (transmitter)
and this product:
Recommended isolation distances between portable
and mobile RF communication equipment and this
Rated
product
maximum
output power of
150 kHz
transmitter/W
80 MHz
d= P
0.01 Not applicable
0.1 Not applicable
1 Not applicable
10 Not applicable
100 Not applicable
For the rated maximum output power of transmitter not listed in the
above table, the recommended isolation distance d in meters can
be determined using the formula in the corresponding transmitter
frequency column, where P is the maximum output rated power of
transmitter provided by the manufacturer in watts (W).
Note 1: The higher frequency band formula is used at the frequency of
80 MHz and 800 MHz.
Note 2: The guide may not apply to all situations. Electromagnetic
propagation is affected by the absorption and reflection of buildings,
objects and the human body.
80 MHz 800 MHz
800 MHz 2.5 GHz
d= P d= P
0.12 0.23
0.38 0.73
1.2 2.3
3.8 7.3
12 23
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