DatasheetVHF Airborne Blade Antenna
170 to 220 MHz
SKU: 21-20-19
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The 21-20-19 is a high performance VHF airborne blade antenna suitable for use on fixed and rotary wing aircraft.
Construction is from a one piece glass loaded thermoplastic moulding intimately bonded into an aluminum alloy base block which houses the matching circuits and provides for very solid attachment to the airframe via 6 fixing holes drilled to the same pattern as the AT-256 UHF antenna.
The metal base block also enables the 21-20-19 to meet the lightning protection requirements of AS-3191/A.
Internal radiating elements are shaped in such a way as to produce minimum VSWR and also to optimize radiation. The antenna assembly is sealed by close cell foam and finished in lusterless black urethane paint.
| 21-20-19 | |
| Model # | 21-20-19 |
| Brand | Cooper Antennas |
| Frequency | 170 MHz to 220 MHz |
| Gain (typical) | +1 dBi typical |
| VSWR | ≤ 2.5:1 |
| Impedance (nominal) | 50 Ohms |
| Power | 50 Watts CW |
| Polarization | Vertical (when mounted vertically) |
| Radiation | Omni directional in azimuth plane |
| Antenna RF Connector | N Female |
| Antenna Shell Type | Glass loaded thermoplastic blade in aluminum alloy base collar |
| Height | 9.10 inches (231mm) |
| Weight | 0.9 lbs (0.4kg) |
| Side Loading | ≥ 8 psi ultimate |
| Base Plate Shape | Diamond shape |
| Fixing Holes | 6 x Ø 0.203 inch (5.2mm) holes, counter bored Ø 0.43 inches (10.9mm) |
Finish
- Urethane Lusterless Black
- Other finish options are available.
- Please specify finish required when ordering.
Datasheet:
