UHF Airborne Blade Antenna
320 to 960 MHz
The 21-30-03 is a high performance combined UHF airborne blade antenna suitable for helicopters and aircraft operating up to Mach 1.
Construction is from a one piece, glass loaded thermoplastic molding intimately bonded onto an aluminum alloy base which houses the matching circuits and provides for very solid attachment to the airframe via 6 fixing holes drilled to match the AT-256 UHF antenna footprint.
Internal radiating element are shaped in such a way as to produce minimum VSWR and also to optimize radiation. The antenna assembly is sealed by closed cell foam and finished in lusterless black or grey urethane paint.
- Covers UHF Telemetry Bands
- High Strength Composite Blade
- Low Side Area, Low Drag
- Single ‘N’ Type Connector
- Drop-on replacement for AT-256
- Environmental Performance to MIL-STD-810
- Foamed in place radiating element
|Gain (typical)||+ 2.5 dBi average, + 1 dBi minimum|
|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 on an aluminum alloy base|
|Height||6.3 inches (160mm)|
|Weight||0.8 lbs (0.37kg)|
|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)|
- Urethane Lusterless Black
- Other finish options are available.
- Please specify finish required when ordering.