62
4.
This system is lower than the minimum prescribed amplitude products or
minimum operating conditions will lead to incorrect results in physiological
signals of patients.
5.
This equipment should not be used in close proximity or stacked with other
equipment. If it must be used close to or stacked, it should be observed to
operate properly in the configuration in which it is used.
6.
Portable and mobile communication devices will affect the performance of
the system. See table 1,2,3,4.
7.
The user shall install and use according to the EMC information provided
by the random file.
8.
Portable and mobile RF communication equipment may affect the Q7
pocket ultrasound system to avoid strong magnetic interference, such as
near microwave ovens, elevators, etc.
9.
Frequency band of emission
：
2412MHz
～
2470MHz
Modulation type
：
DSSS modulate/OFDM modulate
Frequency characteristic
：
802.11b/802.11g
Effective radiated power
：
①
TX power
：
—
18.0dBm@1DSSS
—
14.5dBm@54OFDM
②
RX sensitivity
—
-95.7dBm@1DSSS
—
-74.0dBm@54OFDM
10
．
The guide and manufacturer's statement are detailed in the following table.
Table 1
：
Electromagnetic launch guide and manufacturer statement
This system can be used in a specified electromagnetic environment, users should ensure the use of
electromagnetic environment in the following provisions.
Radiation test
Radiation
test
Electromagnetic environment - Description
RF launch
CISPR 11
Group 1
This system uses RF energy inside the machine function only, so the
RF emission is very low, not in the vicinity of the electronic
equipment to produce any electromagnetic interference.
RF launch
CISPR 11
Class B
The system is suitable for both home and direct connection to
residential public low voltage power networks
Harmonic launch
IEC 61000-3-2
Class A
Voltage fluctuation /
scintillation
emission
IEC 61000-3-3
accord
