The Yagi VHF/HF Beam by Alpha Antenna® is a legal limit and portable, full-size 2-to-20-meter system designed for amateur ham radio and military use, which offers continuous frequency coverage from 144 to 13.950MHz. Included for mounting is a mount for 1.25-inch masts.
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Specifications
- Power: Full legal limit
- RF Connection: SO-239
- Frequency: 2 – 20 Meters
- Environmental operating parameters: -15 to 150 degrees Fahrenheit and winds up to 50 Mph when appropriately guyed.
Included
4 – 17 foot 9 inch telescopic stainless-steel whips (with “Alpha Antenna” laser engraved)
1 – 4 foot boom with built in Top of Mast Mount for installation on a 1.25 to 1.35 inch mast
2 – Hubs
1 – Non-padded field bag that fits all but the boom.
Analysis
Download the following results for the AntScope application here
Download Yagi gain document CLICK HERE
Properties
| Characteristic | Specification |
| Weight | 9lb/4kg |
| Wind Load | 4.0sqft/0.37sq m |
| Longest Element | 34ft 9inches/10.6 m |
| Turning Radius | 17.82ft/5.43 m |
| Boom Length | 48in/1.23 m |
| Mast Hardware | 1.2500in/3.175 cm to 1.3780in/3.500 cm |
| Power Rating | 1500 Watts PEP |
| Wind Rating | 40 mph / 64 km/h |
| Frequency Coverage | 2-20M and 144-13.850MHz |
| Tuning Rate | 1.33 ft/sec – 0.405 m/sec |
Deployment
For temporary outdoor use, deployment can be achieved using the included Top of Mast Mount, which can be affixed to any sized pipe between 1 to 1 1/4 inch outside diameter. It is recommended that you ALWAYS guy this system.
Installed on an optional user provided mast using the included Top of Mast Adapter.
HexTenna vs HexTenna Yagi and their differences
The HexTenna Yagi will not function as a Vertical but can be used as a 2-20M Yagi and you can also use the driven side by itself like the HexTenna as a Dipole by leaving the reflector elements installed as a counterweight. Only the HexTenna Vertical and Dipole will function as both a Dipole or Vertical, covering 2 – 40 Meters, plus 220MHz, & 440MHz. You can tune either one by equally lengthening each element until resonance is achieved. REFERENCE: 2-20M HexTenna Yagi antenna vs a Vertical Dipole VHF HF HF HexTenna
Videos
Gain demo of Alpha Yagi Beam & Alpha Vertical
Gain difference between mounting the HexTenna 15 feet vs 6 feet.
Spoiler alert: Moving the HexTenna from the 5 1/2 foot HD Tripod to a 15-foot mast increases your signal by half (1/2) an S-Unit.
Environmental Tests
Independent environmental tests by Steven Smith K3SKS with the system deployed in 55 mph, wind gusts and ice on the elements, which enables us to rate this system for 50 mph winds.
Assistance
FAQs: HexTenna antenna by Alpha Antenna
We listen!
We are dedicated to improving all of our Portable VHF UHF HF Antennas. Specifications and descriptions are subject to change without notice.
Excellent product and well made, service was great item arrived promptly. Thanks
I have done a few POTA activations now and have had awesome results including some decent DX. I find it works best using as a director. Very happy with it.