The Digi-Code DC5165 Antenna Extension Kit 433 MHz is a receiver accessory designed to improve wireless range and signal reliability for Digi-Code 433 MHz radio controls used with gate operators, garage door openers, and access control receivers. By relocating the receiving antenna away from obstructions and electrical noise, this replacement/upgrade kit helps reduce dropouts and enhances performance in challenging installations for both residential and commercial applications. It is intended for Digi-Code systems operating at 433 MHz and for receivers that provide a compatible external antenna connection from the manufacturer.
Installation is straightforward: mount the antenna in a vertical orientation at a high, open location for best line-of-sight reception, then route the included lead to the receiver’s antenna port. No programming is required because the kit functions as a passive RF antenna; it does not alter receiver code settings or security. For safety and compliance, disconnect power to the operator before routing cables, avoid running the antenna lead parallel to high-voltage wiring, and follow the receiver/operator manual for mounting guidelines. Use only with 433 MHz Digi-Code receivers and controls—mixing frequencies will degrade performance and is not supported. This accessory is commonly used when the receiver is installed inside enclosures or near metal surfaces and interference sources, providing an effective way to restore or extend operating range without changing the receiver or transmitters.