DatasheetWide-band VHF/UHF Airborne Blade Antenna
108-156 and 225-400 MHz
SKU: 21-50-124
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.
| 21-50-124 | |
| Model # | 21-50-124 |
| Brand | Cooper Antennas |
| Frequency |
108-156 MHz 225-400 MHz |
|
| Gain |
108 MHz -9.5 dBi 118 MHz -8.5 dBi 156 MHz -3.5 dBi 225-400 MHz +2 dBi average |
|
| VSWR |
108-118 MHz ≤ 3.0:1 118-156 MHz ≤ 2.0:1 225-400 MHz ≤ 2.0:1 |
|
| Impedance (nominal) | 50 Ohms | |
| Power |
35 Watts CW |
|
| Polarization |
Vertical |
|
| Radiation |
Azimuth : Omni-directional Elevation : As stub |
|
| Antenna RF Connector |
N Female |
|
| 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) |
Finish
- Antenna - Lusterless White Urethane
- Other finish options are available.
- Please specify finish required when ordering.
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