- Usually Ships Following Business Day
LiftMaster
Liftmaster External Antenna
- Usually Ships Following Business Day
- availability:
- available
The LiftMaster EXT-ANT External Antenna Kit is a genuine OEM solution designed to improve signal reception for LiftMaster commercial garage door operators. This antenna kit is required when installing a coaxial antenna on LiftMaster logic boards, specifically those found in Logic 4 and Logic 5 commercial operators.
Unlike standard coaxial antenna kits, the EXT-ANT kit includes a specialized J-type adapter and an F-type antenna that are specifically designed to interface with LiftMaster’s operator boards. The J-type adapter locks securely into the logic board, while the F-type antenna provides enhanced reception—especially useful in metal buildings or environments with signal interference.
What’s Included:
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F-Type Coaxial Antenna
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J-Type Coaxial Adapter (for direct board connection)
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Mounting hardware (pre-attached to cable)
Compatibility:
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Works with LiftMaster commercial operators using Logic 4 or Logic 5 boards
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Connects to “AUX ANT” port on the logic board
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Not compatible with standard antenna kits
Installation Instructions:
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Disconnect power from the operator.
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Remove the electrical box cover.
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Connect the J-type coaxial adapter to the “AUX ANT” port on the logic board.
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Route the cable through the side wall of the control box and secure it with the provided washer and nut.
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Connect the external F-type antenna to the outside connector.
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Cut the internal purple antenna wire from the logic board (if present).
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Replace the cover, restore power, and test system functionality.
Benefits:
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Improves signal reception in low-visibility areas or signal-blocking environments
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Prevents interference issues that may limit the range of remote controls
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Secures directly to logic board for reliable and safe installation
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Ideal for commercial applications including warehouses, garages, and metal buildings
The LiftMaster EXT-ANT External Antenna Kit ensures optimal remote performance and signal clarity in even the most challenging environments. It’s a must-have for installers upgrading or customizing commercial LiftMaster operator systems.