GSI
Allegro Tympanometer
User Manual
D-0120695 Rev D 2022-06 Page 50
Test Specifications for Enclosure Port Immunity to RF wireless
communications equipment
Band
(MHz)
Service
a
Modulation
b
(W)
(m)
Test Level
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
704 – 787
LTE Band 13,
17
Pulse modulation
b
217 Hz
0.2 0.3 9
800 – 960
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
Pulse modulation
b
18 Hz
2 0.3 28
930
1700 –
1990
CDMA 1900;
GSM 1900;
DECT;
LTE Band 1, 3, 4,
25; UMTS
Pulse modulation
b
217 Hz
2 0.3 28
1 970
2 450 2400 –257
WLAN,
802.11 b/g/n,
RFID 2450,
LTE Band 7
Pulse modulation
b
217 Hz
2 0.3 28
5100 –580
WLAN 802.11 a/n
Pulse modulation
b
217 Hz
0.2 0.3 9
NOTE: If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting antenna
and the ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance is permitted by IEC
61000-4-3.
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.