GME AB001 Universal Antenna Base for 27MHz CB and 477MHz UHF CB Antennas A genuine universal antenna base from GME, the AB001 suits both 27MHz CB antennas and 477MHz UHF CB antennas with a standard 5/16" TPI thread, providing a compatible mounting base for a wide range of GME and compatible antennas across both frequency bands. Product overview The GME AB001 is a universal antenna base designed to accept both 27MHz CB and 477MHz UHF CB antennas using the standard 5/16" TPI thread specification common across the Australian CB and UHF CB market. It is not vehicle-specific and can be used across a range of vehicle and fixed installation types. Confirm the mounting style, cable inclusions, and antenna thread compatibility before purchase. Features and benefits Dual frequency compatibility - 27MHz CB and 477MHz UHF CB: The AB001 suits antennas for both 27MHz traditional CB and 477MHz UHF CB from a single base, providing broad frequency coverage for mixed CB and UHF installations. 5/16" TPI thread - standard Australian CB and UHF market specification: The 5/16" TPI thread is one of the most common antenna base thread standards in the Australian CB and UHF CB market, compatible with GME and many other antenna brands using the same thread specification. Universal design - broad installation compatibility: The AB001 is not vehicle-specific and suits a range of vehicle and fixed installation types for flexible antenna deployment. Genuine GME accessory: A genuine GME-manufactured antenna base ensuring correct thread specification and compatibility within the GME antenna system. Technical specs Specification Detail SKU AB001 Brand GME Type Universal Antenna Base Compatible Frequencies 27MHz CB and 477MHz UHF CB Thread 5/16" TPI Compatible with The AB001 is compatible with GME 27MHz CB antennas and GME 477MHz UHF CB antennas using a 5/16" TPI thread. Compatible antennas from other brands using the same 5/16" TPI thread standard may also suit. Confirm your specific antenna thread specification before purchase. Contact us to confirm compatibility with your specific GME antenna model. Frequently asked questions What is the difference between 27MHz and 477MHz for CB radio?27MHz is the frequency band used by traditional AM and SSB Citizens Band CB radio, which was the dominant vehicle communication standard in Australia for many decades. 477MHz is the current Australian UHF CB standard operating across 80 channels, offering clearer audio and better performance in most environments. The AB001 suits antenna types for both systems. What is 5/16" TPI and what antennas use this thread?5/16" TPI refers to the thread diameter and pitch of the antenna base connection point. It is one of the most common antenna thread standards in the Australian CB and UHF CB market and is used by GME and many other antenna brands. Confirm that your chosen antenna has a male 5/16" TPI base thread before purchasing. What mounting style does the AB001 use?The mounting style of the AB001 is not confirmed in the available source data. Common antenna base mounting types include magnetic, gutter mount, body hole mount, and stud mount. Contact us to confirm the mounting method before purchasing. Is a coaxial cable included with the AB001?Cable inclusions are not confirmed in the available source data. Contact us before purchasing to confirm whether a coaxial cable is supplied or must be sourced separately. Is the AB001 compatible with antennas from other brands?The AB001 uses a standard 5/16" TPI thread which is common across many Australian CB and UHF CB antenna brands. Antennas from other brands using the same 5/16" TPI thread specification may be compatible. Confirm thread specification with your antenna manufacturer before purchasing.
