Wide-band VHF/UHF Airborne Blade Antenna
108-156 and 225-400 MHz
The 21-50-124 is a vertically polarized, omni-directional antenna, compatible with airborne transceivers operating within the 108 to 400 MHz frequency range. This antenna is passively matched and requires no external tuning.
This wideband, multi-function antenna developed by Cooper Antennas Ltd provides excellent performance within a small physical package of less than 10 inches in height. Rugged design ensures reliability in world wide conditions of service on helicopters and supersonic aircraft operating at Mach 2.5+
Use of frequency selective matching optimizes efficiency and provides omnidirectional radiation throughout the operating frequency range. Unique element shaping preserves elevation pattern throughout frequency band.
108 MHz -9.5 dBi
118 MHz -8.5 dBi
156 MHz -3.5 dBi
225-400 MHz +2 dBi average
108-118 MHz ≤ 3.0:1
118-156 MHz ≤ 2.0:1
225-400 MHz ≤ 2.0:1
|Impedance (nominal)||50 Ohms|
35 Watts CW
Azimuth : Omni-directional
Elevation : As stub
|Antenna RF Connector||
|Antenna Shell Type||High density foam filled epoxy/fiber glass shell set onto aluminum alloy base.|
|Height||9.85 inches (250mm) max|
|Weight||3.5 lbs (1.6kg)|
|Base Plate Shape||Approximately Elliptical|
|Fixing Holes||10 x Ø 0.208 inch (5.3mm) holes, counter bored Ø 0.48 inches (12.2mm)|
- Antenna - Lusterless White Urethane
- Other finish options are available.
- Please specify finish required when ordering.