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CNI8 Series UHF/L-Band Antenna System

The blade system provides dual band omnidirectional coverage. It is composed of a high strength fiberglass housing and an aluminum base casting to withstand the severe supersonic environment. Integral, as well as remote diplexer configurations are available.

The antenna has been in constant use since 1971 with no known field failures or problems of any kind reflecting on its reliability.

CNI8 Series Antenna Specifications

Electrical
Frequency range
CNI8-4/D, CNI8-6, CNI8-7
CNI8-9, CNI8-10/A
CNI8-8, CNI8-11/A
225 – 400 MHz
950 – 1220 MHz
225 – 400 MHz
950 – 1220 MHz
 
CNI8-12 225 – 420 MHz
950 – 1220 MHz
 
VSWR
CNI8-4/D, CNI8-6 225 – 275 MHz
275 – 400 MHz
950 – 1220 MHz
2.2:1
2.0:1
2.0:1
CNI8-7 225 – 250 MHz
250 – 400 MHz
950 – 1220 MHz
1000 - 1100 MHz
2.5:1
2.0:1
2.0:1
1.8:1
CNI8-8, CNI8-11/A 225 – 400 MHz
960 – 1220 MHz
1000 – 1100 MHz
2.0:1
2.0:1
1.8:1
CNI8-9, CNI8-10/A 225 – 400 MHz
950 – 1220 MHz
1000 – 1100 MHz
2.0:1
2.0:1
1.8:1
CNI8-12 225 – 400 MHz
950 – 1220 MHz
1000 – 1100 MHz
2.0:1
2.0:1
1.8:1
Gain Within 0.75 dB of 1/4 λ stub
Isolation See table 1
Power handling See table 1
Mechanical
Connector See table 1
Diplexer See table 1
Weight
CNI-8-4, D, CNI8-6 22 oz max (0.624 kg) (35 oz with diplexer)
CNI8-7, CNI8-8, CNI8-9, CNI8-10/A, CNI8-11/A, CNI8-12 35 oz max (1 kg)
Environmental
Exceeds MIL-E-5400
Table 1
COUPLER ISOLATION (DB) REMOTE DIPLEXER *POWER (UHF) L-BAND AVERAGE PEAK FLIES ON AIRCRAFT
CNI8-4/D 85 FM34-2 45 W CW 4 W 4.0 kW AWACS, CL215, A10
CNI8-6 85 FM34-1 50 W CW 4 W 4.0 kW F-14, C101, KFIR
CNI8-7 50 Integral Diplexer 45 W CW 3.5 W 2.5 kW F-16
CNI8-8 500 UHF/L-Band 70 L-Band UHF Integral Diplexer 15 W CW 12 W 3.0 kW F-18
CNI8-9 50 Integral Diplexer 45 W CW 3.5 W 2.5 kW F-16
CNI8-10/A 50 Integral Diplexer 100 W CW 3.5 W 3.5 kW A-6, F-4, F-111
CNI8-11/A 500 UHF/L-Band 70 L-Band UHF Integral Diplexer 150 W CW 16 W 4.0 kW F-15
CNI8-12/A 50 Integral Diplexer 100 W CW 2 W 2.5 kW A-37, T-37
*NOTE: Present power specifications are current customer requirements.
Antennas handle higher power without any design change.

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