DatasheetBroadband Airborne Blade Antenna
30 to 600 MHz
SKU: 21-50-51
The 21-50-51 is a vertically polarized, omni-directional antenna, compatible with all popular airborne radios operating within the 30 to 600 MHz frequency range. These antennas can handle 30 Watts of power and require no external tuning.
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 1.0.
Addition of encapsulated top loading element optimizes efficiency. The element is DC grounded for high voltage transfer protection.
- High Strength Broadband Blade Antenna
- Frequency Selective Matching Network
- Fully Foamed to Provide High Environmental Integrity
- Aluminum Alloy Retaining Collar Accepts High Side Loading
- Drop-on Replacement for AT-1108 & AS3191
- Suitable for AN/ARC-210, 5400N and Similar Multi-Mode Radios
- Complies with MIL-STD-810/DO160D Lightning Protection
| 21-50-51 | |
| Model # | 21-50-51 |
| Brand | Cooper Antennas |
| Frequency |
30 - 88 MHz 108 - 174 MHz 225 - 600 MHz |
| Gain |
30 MHz ≥ -24.0 dBi 60 MHz ≥ -18.0 dBi 88 MHz ≥ -11.0 dBi 118 MHz ≥ -7.0 dBi 156 MHz ≥ -2.0 dBi 174 MHz ≥ -1.0 dBi 225-600 MHz ≥ 0 dBi average |
| VSWR |
≤ 2.5:1 30 - 88 MHz ≤ 3.0:1 108 - 117 MHz ≤ 2.5:1 118 - 174 MHz ≤ 2.5:1 225 - 400 MHz ≤ 2.75:1 401 - 600 MHz |
| Impedance (nominal) | 50 Ohms |
| Power | 30 Watts CW |
| Polarization | Essentially vertical (when mounted vertically) |
| Antenna RF Connector | N Female |
| Antenna Shell Type | High density foam filled epoxy/fiber glass shell set in aluminum alloy base collar |
| Height | 14 inches (356mm) |
| Weight | 4.5 lbs (2.05 kg) |
| 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) |
Finish
- Urethane Lusterless Grey
- Other finish options are available.
- Please specify finish required when ordering.
