VHF/UHF Airborne Blade Antenna
30 to 512 MHz
SKU: 21-50-08
The 21-50-08 is a passive airborne blade antenna requiring no tuning and providing exceptional gain in a 9 inch tall structure having just 9 inches of top loading.
Use of optimised proprietary matching techniques has produced an antenna design that provides full SINCGARS/BOWMAN and VHF/UHF communications frequency coverage whilst accepting input power up to 50 watts.
The exceptional performance provided by this antenna offers the VHF\UHF system designer a viable alternative to equivalent sized tuneable antennas with consequent increase in reliability, simpler installation and substantial cost savings.
Electrical design comprises a three dimensional top loaded discone fed via a multiplicity of passive tuned circuits that optimise gain over the various bands within a VSWR typically better than 2.5:1.
| 21-50-08 | |
| Model # | 21-50-08 |
| Brand | Cooper Antennas |
| Frequency | 30 - 512 MHz |
| Gain (typical) |
30 MHz ≥ -23 dBi 88 MHz ≥ -12 dBi 116 MHz ≥ -3 dBi 137 MHz ≥ +1 dBi 152 MHz ≥ -3 dBi 174 MHz ≥ -3.5 dBi 225 MHz ≥ +1 dBi 300 MHz ≥ +3 dBi 400 MHz ≥ +3 dBi 407 MHz ≥ +3 dBi 512 MHz ≥ 0 dBi |
| VSWR | ≤2.5:1 (30-174/225-512 MHz) |
| Impedance (nominal) | 50 Ohms |
| Power | 50 Watts CW |
| Polarization | Vertical (nominal) |
| Radiation Pattern |
Azimuth : Omni-directional nominal Elevation : See graph |
| Antenna RF Connector | TNC Female |
| Antenna Shell Type | High density foam filled epoxy/ fibre glass shell set in aluminium alloy base collar |
| Height | 9 inches (229mm) |
| Weight | 4 lbs (1.8kg) max |
| Base Plate Shape | Tear drop |
| Fixing Holes | 6 x Ø 0.234 inch (5.9mm) holes, counter bored Ø 0.39 inches (9.9mm) |
Finish
- Urethane Lusterless Black Standard
- Other finish options are available.
- Please specify finish required when ordering.
