DatasheetBroadband Airborne Blade Antenna
30 to 512 MHz & 960 to 2500 MHz
SKU: 21-50-56-1
The 21-50-56-1 is a vertically polarized, omni-directional antenna, compatible with airborne radios operating within the 30 to 512 MHz frequency range plus Link16, Tacan, IFF, JTIDS and other L-band systems.
This antenna is constructed as a one-piece, high strength radomes built using high temperature resin and woven fibre glass and has an operating side load acceptance of 8 p.s.i. As such, it is suitable for use on subsonic and supersonic aircraft operating in excess of Mach 2.5.
The element is DC grounded for high voltage transfer protection.
- Suitable for Mach 2.5+
- 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
- Designed to MIL-STD-810
| 21-50-56-1 | |
| Model # | 21-50-56-1 |
| 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 174 MHz ≥ -1.0 dBi 225-512 MHz ≥ 0 dBi average 960-2500MHz +2dBi 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 - 2500 MHz |
| Impedance (nominal) | 50 Ohms |
| Power |
V/UHF - 50 Watts CW, L-band - 100 Watts |
| Polarization | Essentially vertical (when mounted vertically) |
| Antenna RF Connector |
V/UHF - TNC Female L-Band - N Female |
| Antenna Shell Type | High density foam filled epoxy/fiber glass shell set in aluminum alloy base collar |
| Height | 14.75 inches (375mm) |
| Weight | 4.5 lbs (2.05kg) |
| Side Loading | ≥8 psi operating limit load over - 70 to + 135ºC (+ 155°C short term) |
| 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.
