Wide Band VHF/UHF Blade Antenna
30 to 520 & 760 to 960 MHz
The 21-50-165 is a high performance wide band VHF/UHF airborne blade antenna suitable for aircraft operating in excess of Mach 2.
Construction is from a one piece fiberglass blade molding intimately bonded into an aluminum alloy base block which houses the matching circuits and provides for very solid attachment to airframe via 8 fixing holes.
Internal radiating elements are shaped in such a way as to optimize elevation patterns throughout the wide frequency band and proprietary matching techniques maintain a VSWR below 2.7:1.
The antenna assembly is completely sealed and filled with closed cell foam for reliable operation in world-wide conditions of service.
- Suitable for aircraft operating at Mach 2+
- High Strength Composite Blade with Integrated Aluminum Mounting plate
- Low Side Area, Low Drag
- Covers all VHF/UHF and P25 Frequency Bands
- Single RF Connector can be externally diplexed
- Environmental Performance to MIL-STD-810
30 to 520
760 to 960 MHz
-40 dBi 30 MHz
-18 dBi 88 MHz
-10 dBi average 118-174 MHz
0 dBi average 225-520 & 760-960 MHz
≤ 2.5:1 30 - 88 MHz & 108 - 118 MHz
≤ 2.0:1 118 - 174 MHz & 225 - 400 MHz
|Impedance (nominal)||50 Ohms|
50 Watts CW
Vertical (when mounted vertically)
Omni directional in azimuth plane
|Antenna RF Connector||
N - Type Female
|Antenna Shell Type||Epoxy/fiber glass blade in aluminum alloy base collar|
|Height||9.5 inches (241mm)|
|Weight||1.8 lbs (0.8kg)|
|Side Loading||≥ 8 psi ultimate|
|Base Plate Shape||Oval shape|
|Fixing Holes||8 x Ø 0.208 inch (5.28mm) holes, counter sunk 100°.|
- Antenna - Grey Urethane
- Other finish options are available.
- Please specify finish required when ordering.