Broadband Airborne Blade Antenna
30 to 512 MHz & 960 to 2500 MHz
SKU: 21-50-56F81
The 21-50-56 is a vertically polarized, omni-directional antenna, compatible with all popular airborne radios operating within the 30 to 512 MHz frequency range plus Link16, Tacan, IFF, JTIDS and other L-band systems.
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.
The element is DC grounded for high voltage transfer protection.
- Frequency Selective Matching Network Passive design-requires no external tuning
- 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, AN/ARC-231 and Similar Multi-Mode Radios
- Complies with MIL-STD-810/DO160D
- Lightning Protection in accordance with MIL-DTL-2565
| 21-50-56F81 | |
| Model # | 21-50-56 |
| Brand | Cooper Antennas |
| Frequency |
30 - 88 MHz, 108 - 174 MHz, 225 - 512 MHz 960 - 2500 MHz |
| Gain |
30 MHz ≥ -23.0 dBi 60 MHz ≥ -18.0 dBi 88 MHz ≥ -10.0 dBi 118 MHz ≥ -7.0 dBi 156 MHz ≥ -2.0 dBi 1 74 MHz ≥ -1.0 dBi 225-512 MHz ≥ 0 dBi average 960-2500 MHz 0dBi average |
| VSWR |
≤ 2.5:1 30 - 88 MHz ≤ 3.0:1 108 - 117 MHz ≤ 2.5:1 118 - 174 MHz & 225 - 400 MHz ≤ 2.75:1 401 - 512 MHz ≤ 2.0:1 960 - 1220 MHz ≤ 2.5:1 1221 - 2500 MHz |
| Impedance (nominal) | 50 Ohms |
| Power |
VHF - 50 Watts CW, L-band - 200 Watts CW UHF - 100 watts CW |
| Polarization | Essentially vertical (when mounted vertically) |
| Antenna RF Connector | V/UHF - TNC Female |
| Antenna Shell Type | High density foam filled epoxy/fiber glass shell set in aluminum alloy base collar |
| Height | 14.75 inches (375mm) |
| Weight | 3.75 lbs (1.7kg) |
| 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
- FED-STD 595 36118 Medium Gunship Gray
- Other finish options are available.
- Please specify finish required when ordering.
