Alpha Antenna Hextenna User Guide

Alpha Antenna Hextenna User Guide

 

Model – HexTenna™
User Guide, Version 3.2, July 23, 2019

Operation

The HexTenna™ by Alpha Antenna® is a portable full-sized legal limit antenna, which is deployable as a UHF/VHF/HF Vertical/Dipole antenna or a 2-20 meter Yagi if purchased. Please feel free to email us at [email protected] if you have any questions.

Excess RF Exposure Warning

In the United States, the Federal Communications Commission has established guidelines for human exposure to Radio Frequency (RF) electromagnetic fields. The commission’s requirements are detailed in parts 1 & 2 of the FCC’s rules and regulations {47 CFR, 1.1307(b), 1.1310, 22.1091, 2.1093}. It is the responsibility of the owner/operator of this device to follow all applicable warnings and precautions regarding human exposure to RF fields. Additional references: http://www.arrl.org/rf-exposure

 

 

Post Assembly Instructions

Step

Hex Tenna Assembly

1

Attach your coax to the built in SO-239 on the Alpha Match hub.

2

Use a measuring tape to adjust the length of the whip(s) to closely match the lengths on the charts below.

3

Make any final adjustments to the whip(s) until the lowest SWR is achieved.

 

Tune by adjusting the following lengths on each element.

Yagi and Dipole element lengths

Approximate element lengths of each Yagi & Dipole element

BandYagi ‘Driven Element’ and ‘Dipole Element’Yagi ‘Reflector Elements’
4016’ 9” (5.1054 Meters) & install the clip-on wire element *Not supported
3010’ 4” (3.1496 Meters) & install the clip-on wire element *Not supported
2016 feet 11 1/2 inches (5.1689M)17 feet 3/4 inch (5.2M)
1713 feet 3/4 inch (3.98145M)13 feet 5 1/2 inches (4.1M)
1510 feet 11 1/2 inches (3.3401M)11 feet 7 3/4 inches (3.55M)
129 feet 6 inches (2.8956M)9 feet 10 1/4 inches (3M)
108 feet 3 1/2 inches (2.5273M)8 feet 6 1/3 inches (2.6M)
64 feet 8 inches (1.1684M)5 feet 1 inch (1.55M)
24 feet 7 1/2 inches (1.4097M)4 feet 9 inches (1.45M

* As a Yagi, Alpha Antenna does not support 30 or 40 meters on the HexTenna™. When deployed as a Dipole, tuning on 30/40 meters is achieved on the Dipole after the wire elements are installed, by equally retracting each element till resonance is achieved. The wire add-on elements are attached to the tip of each telescopic
element with the clips, and deployed to form an M-Shaped dipole. The wire element can be held straight by pushing the included stake into the ground or removing the stake and tying off either end with the included green insulators to a tree or other support. IMPORANT – Do not allow wire elements to lay on the ground.

Vertical/Counterpoise element lengths

Vertical Element & Counterpoise approximate lengths (Roll out the single counterpoise for minimum SWR)

BandApproximate length of Vertical ElementVertical Element Approximate Length of 4 user provided Counterpoise Elements****Lengths of the Vertical Element & Counterpoise may vary based upon variables unique to the user site and/or equipment. Enter installation specific notes here.
2013 feet 2 inches18 feet 2 inches (5.5372M)
179 feet 8 inches14 feet 2 3/8 inches (4.32562M)
158 feet 7 3/4 inches12 feet 1 1/2 inches (3.7M)
127 feet 1 inches10 feet 4 inches (3.15M)
106 feet9 feet (2.74M)

 

Approximate length of Vertical Element with No Counterpoise

440 Mhz2 feet 2 inches (0.66M)No counterpoise recommended
220 MHz3 feet 4 3/4 inches (1.04M)No counterpoise recommended

 

 

 

References

Documents / Resouces

Download manual
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.


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