Wideband VHF/UHF Airborne Blade Antennas

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Wideband VHF/UHF Airborne Blade Antennas

The 21-50-134 is a vertically polarized, omni-directional antenna, compatible with all popular airborne radios operating within the 66 to 530 MHZ frequency range. This antenna can handle up to 50 Watts of power and requires no external tuning.

This wideband, multi-function antenna developed by Cooper Antennas Ltd is particularly suited to tactical military and public service communications. Rugged design ensures reliability in world wide conditions of service on helicopters and subsonic aircraft.

Use of proprietary matching techniques optimizes efficiency and provides omnidirectional radiation throughout the operating frequency range. The element is DC grounded for lightning protection.

High Strength Broadband Top-loaded Blade Antenna
Frequency Selective passive Matching Network
Requires no external tuning
Fully Foamed for High Environmental Integrity
Suitable for SRM 9000 and Similar Multi-Mode Radios
Complies with MIL-STD-810
Suitable for operation at 120ºC
Continuous frequency coverage from 66-530 MHz

	21-50-134
Model #	21-50-134
Brand	Cooper Antennas

Frequency	66 - 530 MHz (continuous coverage)
Gain	66 MHz: -7 dBi 88 MHz: -14 dBi 136 MHz: -7 dBi 174 MHz: -2 dBi 230 MHz: +2 dBi 370 MHz: +2 dBi 470 MHz: +2.5 dBi 530 MHz: +3 dBi
VSWR	≤ 2.5:1
Impedance (nominal)	50 Ohms
Power	50 Watts CW
Polarization	Vertical
Radiation	Azimuth : Nominally omni-directional Elevation : See graphs
Antenna RF Connector	TNC Female

Antenna Shell Type	High density foam filled epoxy/ fiber glass shell with aluminum alloy top-tube set in aluminum alloy base.
Height	9 inches (229 mm)
Weight	4.5 lbs (2.04 kg)
Base Plate Shape	Oval
Fixing Holes	10 x Ø 0.208 inch (5.3mm) holes, counter bored Ø 0.48 inches (12.2mm)