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RAMI Military/Commerical Communications Antenna
Frequency 116-152 MHz 225-400 MHz
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The AT-1108-1 is a combined VHF/UHF airborne communications
antenna offering less drag than the AT-1108/ARC. It has a narrower
leading edge and body. The outside surfaces are abrasive resistant
fiberglass epoxy and the inside is filled with foam to reduce the effect
of extreme temperature changes, extreme humidity and excessive
shock and vibration. The antenna is manufactured to meet the electrical
requirements of Mil-E-5400 and the environmental requirements of
MIL-STD-810. Drag force on the antenna at Sea Level and at zero
(0) angle of attack is 2.2 Kg (1.0 lbs.) at 4330 km/hr (250mph) and
5.5 Kg (2.5 lbs.) at 6928 km/hr (400mph). The isolation between bands
is ≥ 40 dB. A conductive gasket for positive grounding and sealing is
included. It is coated with a Skydrol resistant black epoxy paint.
P/N AT-1108-1
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| Model |
AT-1108-1 |
| Specifications |
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| Application |
Airborne Communications |
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| Frequency |
116-152 & 225-400 MHz |
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| VSWR |
3.0 to 1 Maximum |
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| Impedance |
50 OHMS(nominal) |
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| Polarization |
Vertical |
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| Pattern |
Omnidirectional |
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| Weight |
1.6 Kg (3.5 lbs.) maximum |
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| Connector Type |
BNC (VHF) & TNC (UHF) (female) |
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| RF Power Capability |
50 Watts average |
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| Height |
14.4" |
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| Gain (Ref to a 1/4 wave Monopole) |
-6dB Min. all freq.'s |
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