GME AB406 Magnetic Antenna Base with Coaxial Lead for UHF CB Antennas
A genuine magnetic antenna base from GME, the AB406 provides a no-drill mounting solution for standard 5/16" TPI UHF CB and CB antennas on any flat steel surface, with a coaxial lead and plug included for direct connection to a compatible radio without additional cable or connectors.
Product overview
The GME AB406 is a magnetic antenna base designed for quick, non-permanent antenna mounting on ferrous steel surfaces including vehicle roofs, bonnets, trailers, sheds, and machinery. The 5/16" TPI thread accepts standard Australian UHF CB and CB antenna whips. The included coaxial lead and plug allow direct connection to the radio's antenna input without additional coaxial assembly. The magnetic base can be repositioned or removed at any time without damage to the vehicle surface.
Note: the AB406 requires a ferrous steel surface. It will not adhere to aluminium, fibreglass, plastic, or other non-magnetic materials. Confirm your mounting surface is steel before purchase. Cable length and plug connector type are not confirmed in the available source data. Contact us before purchasing if these specifications are critical to your installation.
Features and benefits
Magnetic mount - no-drill installation on steel surfaces: The AB406 attaches to any flat ferrous steel surface without drilling, providing a quick and non-permanent antenna mounting solution for vehicles, trailers, machinery, and any suitable steel structure.
Coaxial lead and plug included - ready to connect: The included coaxial lead and plug allow direct connection to a compatible radio's antenna input without purchasing additional cable or connectors separately.
5/16" TPI thread - standard Australian UHF CB specification: The 5/16" TPI thread accepts the majority of Australian UHF CB and CB antenna whips from GME and other compatible brands.
Non-permanent and repositionable: The magnetic base can be removed and repositioned at any time without damage to the vehicle surface, suited to temporary setups, hire vehicles, and multi-vehicle use.
Genuine GME accessory: A genuine GME-manufactured magnetic antenna base ensuring correct thread specification and compatibility within the GME antenna system.
Technical specs
| Specification |
Detail |
| SKU |
AB406 |
| Brand |
GME |
| Type |
Magnetic Antenna Base |
| Thread |
5/16" TPI |
| Includes |
Coaxial Lead and Plug |
| Surface Requirement |
Ferrous Steel Only |
Compatible with
The AB406 is compatible with standard 5/16" TPI UHF CB and CB antenna whips from GME and other brands using the same thread specification. Confirm your antenna uses 5/16" TPI thread before purchasing. Suitable for vehicles, trailers, machinery, and any flat steel surface. Not suitable for aluminium, fibreglass, or plastic surfaces.
Frequently asked questions
What surfaces does the AB406 magnetic base adhere to?
The AB406 requires a ferrous steel surface. It will not adhere to aluminium, fibreglass, plastic, or other non-magnetic materials. Most vehicle roofs and bonnets are steel and will work. Confirm your mounting area is steel and reasonably flat for secure magnetic contact before purchasing.
What is the cable length and connector type on the AB406?
Cable length and plug connector type are not confirmed in the available source data. Contact us before purchasing if these specifications are critical to your installation.
Does magnetic mounting affect UHF radio performance compared to a drilled mount?
Magnetic bases provide a good ground plane connection through the steel surface, and performance is generally comparable to drilled bases when installed on a flat steel surface. Very thin sheet metal, thickly painted surfaces, or off-centre positions can slightly reduce ground plane effectiveness. For full-time installations a permanent drilled mount typically provides the best result, but the AB406 performs well for most recreational and utility UHF applications.
Can the AB406 be left on the vehicle permanently?
The AB406 is designed primarily as a non-permanent mounting option. It can be left in place for extended periods, but long-term outdoor exposure may allow water and debris to accumulate under the base and affect paint condition. For full-time antenna installations a permanent drilled mount is recommended.
What antennas fit the AB406?
Any antenna using a standard 5/16" TPI thread base is compatible, covering the majority of Australian UHF CB and CB antenna whips from GME and other brands. Confirm your antenna uses 5/16" TPI thread before purchasing.
