Product Description
LUGHUB™ Antenna Counterpoise Hub – LUGHUB-2/4
The American Radio Supply LUGHUB™ Antenna Counterpoise Hub is a heavy-duty four-point radial and counterpoise hub designed to provide a convenient common connection point for multiple antenna radial wires or RF ground elements. The LUGHUB™ is especially useful for vertical, portable, elevated, field, and temporary antenna systems where a dedicated earth ground may not be practical or desirable.
The LUGHUB™ features a UHF (SO-239) style threaded body measuring 2.0 inches in length and provides four integrated counterpoise connection points. Each point accepts a 5/8-inch ring terminal, allowing multiple radial wires to be securely connected to the antenna system.
A counterpoise provides an artificial or elevated RF return path for an antenna system. Rather than relying entirely on the earth as the return path, radial wires connected to the LUGHUB™ extend outward from the antenna feed point and serve as RF counterpoise elements.
The LUGHUB™ keeps these radial connections organized at a common hub, helping establish a more predictable RF current path. A properly configured radial or counterpoise system can help improve antenna efficiency, stabilize antenna matching, and reduce unwanted RF currents traveling along the outside of the coaxial feed line.
Specifications
- Product: LUGHUB™ Antenna Counterpoise Hub
- Model: LUGHUB-2/4
- Connector Type: UHF (SO-239)
- Hub Diameter: 5/8" (≈16 mm)
- Hub Length: 2.0" (≈51 mm), excluding ring terminals
- Counterpoise Points: 4 Ring Lugs
- Inside Diameter: 5/8" (≈16 mm)
- Ring Lug Outside Diameter: 1-1/16" (≈27 mm)
- Wire Size: #14–#16 AWG
- Material: Nickel-Plated Brass Alloy (Connector)
- Additional Ring Lugs Can be added
Key Features
- 4-Point Counterpoise Hub – Four 5/8-inch ring-lug connection points
- Expandable Design – Additional ring lugs can be added for more radials.
- UHF (SO-239) Configuration – Designed around a 5/8-inch-diameter SO-239 connector.
- 2-Inch Body Length – Overall hub body length is approximately 2.0 inches (51 mm), excluding the ring lugs.
- Heavy-Duty Construction – Manufactured from nickel-plated brass alloy for durability and reliable electrical conductivity.
- Multiple Wire Connections – The supplied four ring lugs accommodate #14–#16 AWG wire conductors.
- Organizes Radials – Brings multiple radial wires together at a single, convenient RF connection point.
- Portable & Field Friendly – Well suited for temporary, portable, elevated, and field-deployed antenna installations.
Expandable Radial System
The four supplied LUGHUB™ connection points provide a starting point for building a counterpoise system, while additional 5/8-inch ring-terminal lugs can be added when more radial elements are desired. This allows the counterpoise configuration to be customized for the particular antenna, operating frequency, installation environment, and available space.
Replacement/additional ring lugs: ARS-0625 – 5/8-inch heavy-duty grounding lug ring terminal for SO-239 and Type-N connectors.
Typical Applications
- Amateur radio antennas
- HF vertical antennas
- Portable and field antennas
- Elevated radial systems
- Ground-plane antenna systems
- Temporary antenna installations
- Matching transformer installations
- Counterpoise and radial-wire systems
- RF grounding and return-path applications
