HF-2-30
HF Broadband Dipole Antenna
| Model | Product Description | Frequency | Gain | Download | Enquiry | |
|---|---|---|---|---|---|---|
| HF-2-30 | HF Broadband Dipole Antenna | 1.5-30MHz | Unity |  |  |  |
The HF-2-30 is a military-grade, ultra-wideband folded dipole antenna engineered for seamless operation across the entire HF spectrum (1.5–30 MHz). Designed for "set-and-forget" reliability, it provides an all-in-one solution for short-range NVIS (Near Vertical Incidence Skywave), medium-range, and long-distance skip communications without the need for an external Antenna Tuning Unit (ATU) or manual adjustments.
True Broadband Efficiency
The HF-2-30 stands out by eliminating the terminating resistors commonly found in other broadband dipoles. This design choice ensures that the full 500 Watts of PEP (Peak Envelope Power) is available for radiation rather than being dissipated as heat, significantly increasing the antenna's overall efficiency. By utilizing a high-performance matching Balun and a specialized folded-arm geometry, it maintains a stable VSWR of 2.5:1 or better across the full 28.5 MHz bandwidth. This allows operators to jump between frequencies instantly—critical for frequency-hopping spread spectrum (FHSS) and ALE (Automatic Link Establishment) operations.
Military-Grade Durability
Built to survive in harsh field environments, the radiating elements are constructed from twisted copper with heavy-duty insulation. The central Balun is housed in a high-impact Nylon base, providing excellent dielectric properties and resistance to environmental stress. To maintain the structural shape of the folded arms, high-strength PVC spreaders are used, ensuring the antenna remains balanced even in wind speeds up to 160 Km/Hr. This rugged construction makes it a primary choice for rapid-deployment military units and permanent tactical base stations.
Operational and Tactical Efficiency
The HF-2-30 is a "plug-and-play" asset that is ready for operation immediately out of the box. It requires no field tuning, no taps, and no measurements, removing the risk of human error in high-pressure scenarios. Logistically, the 23-meter antenna collapses into a compact shipping box (0.60m), making it easy to transport. It offers ultimate deployment flexibility, allowing for two primary configurations:
- Horizontal Dipole: Mounted between two masts for maximum long-distance gain.
- Inverted "V": Mounted on a single central 9-meter mast to save space and provide a mix of local NVIS and medium-range coverage.
Detailed Technical Features
- Full Spectrum Coverage: Operates continuously from 1.5 MHz to 30 MHz.
- Multi-Mode Propagation: Optimized for NVIS (Near Vertical Incidence Skywave), local, and long-haul skywave links.
- High Power Handling: Rated for 500 Watts PEP, suitable for high-power tactical transceivers.
- Direct Matching: Sophisticated Balun design eliminates the need for an Antenna Tuning Unit (ATU).
- Lightning Protection: Features a direct D.C. ground path to protect connected radio hardware from atmospheric static.
Detailed Mechanical Features
- Flexible Elements: Twisted copper wire with integrated insulators for high tensile strength.
- Modular Spreaders: Durable PVC pipe spacers maintain consistent arm separation.
- Physical Footprint: 23 meters (approx. 75 feet) overall length.
- Optimized Installation: Recommended mast height of 9 meters (30 feet) with a 25-meter span between masts.
- Weight Profile: 5 Kgs (Net); light enough for rapid mast mounting.
Detailed Environmental Features
- Wind Resilience: Certified for operation in winds up to 160 Km/Hr.
- Temperature Range: Reliable performance in extreme cold and heat, from -25°C to +65°C.
- Humidity Shielding: Designed for high-humidity theaters (0 to 95% RH) with moisture-resistant Nylon and PVC components.
Key Advantages
- Automatic Frequency Agility: Perfectly suited for ALE (Automatic Link Establishment) and frequency hopping; no waiting for tuners.
- High Radiation Efficiency: No terminating resistors means more power is put into the air.
- Deployment Versatility: Can be configured as a standard dipole or a space-saving Inverted "V".
Primary Applications
- Military Strategic Hubs: Continuous HF communication for tactical command and control.
- Spectrum Monitoring: Ideal for wideband surveillance and signal intelligence (SIGINT) without antenna switching.
- Emergency Response: Rapidly deployable HF link for disaster zones where infrastructure has failed.
- NVIS Communications: Providing reliable "skip" coverage into mountainous or obstructed terrain.
| Feature | Specification | Tactical Benefit |
|---|---|---|
| Frequency Range | 1.5 - 30 MHz | Complete HF band coverage in one antenna. |
| Power Handling | 500 Watts PEP | Supports high-power tactical voice/data. |
| Tuning Required | None (Automatic) | Immediate frequency switching for ALE/Hopping. |
| Radiation Efficiency | High (No Resistors) | Maximizes signal reach and link reliability. |
Design Features: The HF-2-30 Broad Band Folded Dipole Antenna offer optimum performance, fully automatic, low SWR operation over the entire HF band 1.5 – 30 MHz and suitable for transmitting, receiving or HF spectrum monitoring or surveillance. The HF broadband dipole antenna propagates NVIS, local, medium or long distance. This HF broadband dipole antenna is ready to go right out of the box, no taps to change frequency, nothing to tune - ever! Designed for the military and built to last. The HF-2-30 can work any frequency you want without going through a lot of knob twirling and measurements to get a good VSWR match - just set your frequency and go!
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