The LiftMaster EXT-ANT Coaxial Antenna Kit is an OEM external antenna solution designed to enhance radio reception and extend remote control range for compatible LiftMaster operators and receivers. By relocating the antenna outside of metal control boxes or away from RF interference, this accessory helps improve performance for gate operators, commercial door operators, and access control systems in residential and commercial environments. It’s commonly used when remotes work intermittently or at short distances due to enclosure shielding or challenging site conditions.
The EXT-ANT installs by mounting the antenna in a clear, elevated location and routing the coaxial lead back to the operator or receiver’s antenna port per the product manual. It is intended for LiftMaster equipment that supports an external antenna connection; always confirm compatibility with your specific control board or receiver documentation. For best results, keep the antenna vertical, avoid routing near high-voltage wiring, and power down the operator before making connections. This replacement/upgrade accessory is a practical way to optimize remote range without changing transmitters or receivers, especially on gates, barrier arms, and commercial doors where enclosures and distance can reduce signal strength.