22
Rev
：A1
Recommended separation distances between portable and mobile RF communications
equipment and the [EQUIPMENT or SYSTEM]
The [EQUIPMENT or SYSTEM] is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the [EQUIPMENT or
SYSTEM] can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and the [EQUIPMENT
or SYSTEM] as recommended below, according to the maximum output power of the
communications equipment.
Rated maximum
output power of
transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
d = 1.16
p
80 MHz to 800 MHz
d = 1.16
p
800 MHz to2.5 GHz
d = 2.33
p
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 rating of the transmitter in watts (W) according
to 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.
8
．
About Blood Pressure
8.1 What is Blood Pressure?
Blood pressure (BP) is the pressure exerted by circulating blood upon
the walls of blood vessels, and is one of the principal vital signs.
Two pressures are measured for a blood pressure reading:
• Systolic blood pressure is a measure of blood pressure while
the heart is beating.
• Diastolic pressure is a measure of blood pressure while the
heart is relaxed.
8.2 What is high blood pressure?
High blood pressure, also known as HBP or hypertension, is a
widely misunderstood medical condition. Some people think
