Yuwell YE680B, User Manual

Page: 23 / 24

Electromagnetic compatibility information
For ME EQUIPMENT and ME SYSTEMS that are
not LIFE-SUPPORTING
Table 3
Guidance and manufacture s declaration-electromagnetic immunity '
The YE680B is intended for use in the electromagnetic environment
specified below. The customer or the user of YE680B should assure
that it is used in such an environment.
Immunity
test
IEC 60601
test level
Compliance
level
3 Vrms
0,15 MHz-80 MHz
6 V rms in ISM and amateur
radio bands between
0,15 MHz and 80 MHz
80 % Am at 1 kHz
Conducted RF
IEC 61000-4-6
NOTE1 At 80 MHz and 800 MHz
,
the higher frequency range applies
.
NOTE2 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 YE680B is used exceeds the applicable RF
compliance level above
,
the YE680B should be observed to verify
normal operation
.
If abnormal performance is observed
,
additional
measures may be necessary
,
such as reorienting or relocating the
YE680B
.
b
Over the frequency range 150 kHz to 80 MHz
,
field strengths
should be less than 3 V
/
m
.
Radiated RF
IEC 61000-4-3
10 V/m
80 MHz to
2.7 GHz
3 Vrms
0,15 MHz-80 MHz
6 V rms in ISM and amateur
radio bands between
0,15 MHz and 80 MHz
80 % Am at 1 kHz
10 V/m
80 MHz to
2.7 GHz
a) Band
(MHz)
a)
Service
(MHz)
Modulation b)
Maximum
power
(MHz)
IMMUNITY
TEST LEVEL
(V/m)
Distance
(m)
380-390
TETRA 400
Pulse
b) modulation
18 Hz
1,8
0,3 27
385
430-470
FM
±5 kHz deviation
1 kHz sine
2
28
450
GMRS 460,
FRS 460
0,3
710
704-787
LTE Band 13,
17
0,3
9
745
780
Pulse
b) modulation
217 Hz
0
,
2
810
800-960
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
0,3
28
930
Pulse
b) modulation
18 Hz
2
1720
1700-1990
GSM 1800;
TETRA 1900;
GSM 1900;
DECT;
LTE Band 1,3,
4,25; UMTS
0,3
28
1970
Pulse
b) modulation
217 Hz
2
870
1845
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
0,3
2450
Pulse
b) modulation
217 Hz
2400-2570
2 28
WLAN
802.11a/n
0,3
Pulse
b) modulation
217 Hz
5240
5500
5785
5100-5800
0
,
2
9
NOTE If necesary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting
antenna and theME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance is permitted by
IEC61000-4-3.
b
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50% duty cycle square wave signal.、
c) As an alternative to FM modulation, 50% pulse modulation at 18 Hz may be used because while it
does not
frequency
(MHz)
Test
Table 4-Test specifications for ENCLOSURE
P
ORT
IMMUNITY to RF wireless communications
equipment
Electromagnetic compatibility information
42 43