VHF ATC Antenna
118 to 137 MHz
SKU: 21-20-41
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The 21-20-41 is an externally mounted airborne VHF antenna operating in the civil ATC band.
A fiberglass rod with an internal element is fitted into an aluminum base which contains foamed-in place matching circuits capable of handling up to 50 Watts power.
The method of construction provides protection from world-wide military environmental conditions including high vibration, shock and temperature variations.
- Covers 118-137 MHz with high efficiency
- Very lightweight
- For helicopter and fixed wing aircraft up to 350 Knots
- Glass/Epoxy – Aluminum construction
- Small footprint
- Designed to MIL-STD-810 Environmental conditions
| 21-20-41 | |
| Model # | 21-20-41 |
| Brand | Cooper Antennas |
| Frequency | 118-137 MHz |
| Gain (typical) | +2db |
| VSWR | ≤ 2.5:1 |
| Impedance (nominal) | 50 Ohms |
| Power | 50 Watts |
| Polarization | Linear (vertical when vertically mounted) |
| Radiation | Nominally omni directional in azimuth plane |
| Antenna RF Connector | TNC Female |
| Construction | Fiberglass whip/ Aluminum base |
| Height | 18 inches (460mm) |
| Weight | 0.5lb (0.23kg) |
| Base Plate Shape | Tear drop |
| Fixing Holes | 4 x Ø 0.170 inches (4.3mm) ±0.005 inches (0.127mm) holes, counter sunk at 100° Ø 0.280 inches (7.1mm). |
Finish
- Urethane Gloss White
- Other finish options are available.
- Please specify finish required when ordering.
Datasheet:
