Broadband Airborne Blade Antenna

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Broadband Airborne Blade Antenna

The 21-50-58-1 is a vertically polarized, omni-directional antenna, compatible with all popular airborne radios operating within the 150 to 400 MHz frequency range and 2000 to 2500 MHz.

This wideband, multi-function antenna developed by Cooper Antennas Ltd is particularly suited to tactical military communications. Rugged design ensures reliability in world wide conditions of service on aircraft operating at speeds up to Mach 0.95.

The radiating element is DC grounded for P-Static protection.

Frequency Selective Matching Network
Passive design-requires no external tuning
Fully Foamed to Provide High Environmental Integrity
Aluminum Alloy Retaining Collar Accepts High Side Loading
Drop-on Replacement for AT-1108 & AS3191
Complies with MIL-STD-810/DO160D
Lightning Protection in accordance with MIL-DTL-2565

	21-50-58-1
Model #	21-50-58-1
Brand	Cooper Antennas

Frequency	150 - 400 MHz 2000 - 2500 MHz
Gain	150-400 MHz ≥ 0 dBi average 2000-2500 MHz 0dBi average
VSWR	≤ 2.5:1 150 - 400 MHz ≤ 2.5:1 2000 - 2500 MHz
Impedance (nominal)	50 Ohms
Power	V/UHF - 50 Watts CW, L-band - 200 Watts CW
Polarization	Essentially vertical (when mounted vertically)
Antenna RF Connector	V/UHF - TNC Female L-Band - N Female

Antenna Shell Type	High density foam filled epoxy/fiber glass shell set in aluminum alloy base collar
Height	14.75 inches (375mm)
Weight	4.5 lbs (2.05kg)
Side Loading	≥ 8 psi ultimate
Base Plate Shape	Tear drop
Fixing Holes	6 x Ø 0.200 inches (5mm) holes, counter bore Ø 0.39 inches (9.9mm)