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Respiro
44 (48)
Operating Instructions
© Bittium Biosignals 2022
80 % AM at 1 kHz
Voltage dips
IEC 61000-4-11
0 % U
T
; 0,5 cycle
At 0°, 45°, 90°, 135°, 180°, 225°, 270° and 315°
0 % U
T
; 1 cycle
and
70 % U
T
; 25/30 cycles
Single phase: at 0°
Voltage interruptions
IEC 61000-4-11
0 % U
T
; 250/300 cycle
Surges, Line-to-line
IEC 61000-4-5
± 0,5kV, ±1kV
Surges, Line-to-ground
IEC 61000-4-5
± 0,5kV, ±1kV, 2kV
Electrical fast transients
/ bursts
IEC 61000-4-4
± 2kV
100kHz repetition frequency
Table 11 Immunity test levels, continued
Test
frequency
(MHz)
Band
(MHz)
Service
Modulation
Maximum
power
(W)
Distance
(m)
Test level
(V/m)
385
380-390
TETRA 400
Pulse modulation
18 Hz
1,8
0,3
27
450
430-470
GMRS 460,
FRS 460
FM
± 5 kHz deviation
1 kHz sine
2
0,3
28
710
704-787
LTE Band 13,
17
Pulse modulation
217 Hz
0,2
0,3
9
745
780
810
800-960
GSM
800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
Pulse modulation
18 Hz
2
0,3
28
870
930
1720
1700-1990
GSM 1800; Pulse modulation
2
0,3
28