D2241 Dipole Antenna
The D2241 Dipole Antenna is a dual-band VHF/UHF antenna with independent elements for simultaneous 108–174 MHz and 225–400 MHz operation in military and air traffic control systems.
Description
The D2241 Dipole Antenna is a rugged VHF/UHF antenna engineered for mission-critical ground-to-air communications across defense, military aviation, and air traffic control applications. It integrates two independent dipole elements, one for VHF and one for UHF, within a single radome, enabling simultaneous dual-band operation with high isolation between ports. Operating in the 108–174 MHz and 225–400 MHz frequency ranges, the D2241 supports secure, interference-resistant multi-channel communication. Its durable, military-grade construction ensures reliable performance in harsh environments, making it ideal for integrated communications platforms that require both VHF and UHF support.
| General Specifications | |
|---|---|
| Model Name | D2241 |
| Part Number | 993434 |
| Antenna Type | Dipole Antenna |
| Radiation Pattern | Omni-Directional |
| Enclosure | Wound Fiberglass Radome |
| Colour | Olive Drab (RAL 6022) |
| Compliances | RoHS, REACH |
| Markets | Military & Defence, Aviation & Air Traffic |
| Electrical Specifications | |
| Frequency (MHz) | 108-174, 225-400 |
| Frequency Band | VHF + UHF |
| Gain - (dBi) | 1.5 |
| Polarization | Vertical |
| VSWR (Max) | 2:1 |
| Impedance (Ω) | 50 |
| UHF Max Input Power (W) | 250 |
| Isolation - Min. (dB) | 41 |
| HPBW (°) | 75 |
| Mechanical Specifications | |
| Length - in (mm) | 97.9 (2487) |
| Weight - lbs (kg) | 12 (5.4) |
| Element Configuration | UHF-VHF |
| Number of Elements | 2 |
| Connector Type | N-Type (Female) |
| Number of Connectors | 2 |
| Environmental & Structural Specifications | |
| Operating Temperature - °F (°C) | -40 to 158 (-40 to 70) |
| Wind Loading Area - ft² (m²) | 2.21 (.20) |
| Wind Loading Area with ½" Ice - ft² (m²) | 2.09 (.19) |
| Bend Moment (ft-lbs) | 125.6 |
| Bend Moment with ½" Ice (ft-lbs) | 51.1 |
| Survival Rating No Ice - mph (kph) | 150 (241) |
| Mounting Specifications | |
| Mount Type | Mount A - Clamp Mount |
| Mast OD - in (mm) | 3 (76) |
Model Variants
- D2241-M2G Shipboard Antenna – Shipboard Model with Military Double Mast Clamp (108-174 MHz, 225-400 MHz)