ERT SpiroSphere - Page 126

SpiroSphere
®
ECG Instructions for Use
Page 126/136
Version 02.02 • 04AUG2022
Test Speci¿cations for Immunity to RF Wireless Communications Equipment
Test
frequency
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
Maximum
power
(W)
Distance
(m)
Immunity
test level
(V/m)
385 380 - 390 TETRA 400 Pulse
modulation
b)
18 Hz
1.8 0.3 27
450 430 - 470 GMRS 460;
FRS 460
FM
c)
± 5 kHz
deviation
1 kHz sine
20.328
710 704 - 787 LTE Band 13,
17
Pulse
modulation
b)
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
b)
18 Hz
20.328
870
930
1720 1700 -
1990
GSM 1800;
CDMA 1900;
GSM 1900;
DECT;
LTE Band
1, 3, 4, 25;
UMTS
Pulse
modulation
b)
217 Hz
20.328
1845
1970
2450 2400 -
2570
Bluetooth;
WLAN
802.11 b/g/n;
RFID 2450; LTE
Band 7
Pulse
modulation
b)
217 Hz
20.328
5240 5100 -
5800
WLAN
802.11 a/n
Pulse
modulation
b)
217 Hz
0.2 0.3 9
5500
5785
NOTE: If necessary to achieve the immunity test level, the distance between the transmitting antenna
and the ECG unit may be reduced to 1 m. The 1 m test distance is permitted by IEC 61000-4-3.
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 represent actual modulation, it would be worst case.