DatasheetP25 Airborne Blade Antenna
760 to 870 MHz
SKU: 21-40-45-3
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The 21-40-45-3 is a UHF airborne blade antenna designed for high performance aircraft and intended for P25 applications. It is a direct footprint replacement for AT256 UHF Blade antennas.
Electrical design is based on a 2-dimensional, shunt-grounded discone which is of high efficiency and provides an omnidirectional azimuthal radiation.
Mechanical design uses an advanced, glass-loaded thermoplastic radome with an integral radiating element, all foamed-in-place for structural and environmental integrity.
The blade has an aluminum alloy baseplate with a centrally mounted, N-type female coaxial connector.
- Suitable for P25 communication links
- Low profile, diamond shaped blade
- Designed to meet MIL-STD-810
- Fully environmentally sealed
- Grounded element for lightning protection
- Lossless matching - high RF efficiency
- Omnidirectional radiation pattern
| 21-40-45-3 | |
| Model # | 21-40-45-3 |
| Brand | Cooper Antennas |
| Frequency | 760 - 870 MHz |
| Gain (average) | ≥3 dBi |
| VSWR | ≤ 1.75:1 |
| Impedance (nominal) | 50 Ohms |
| Power | 50 Watts CW |
| Polarization | Vertical |
| Radiation | Omni-directional in azimuth, similar To stub in elevation |
| Antenna RF Connector | N Female |
| Antenna Shell Type | Glass loaded thermoplastic blade |
| Element Height | 6 inches (152.5mm) max |
| Weight | 0.9 lbs (0.4 Kg) max |
| Side Loading | ≥ 6 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:
