Duplex Repeater Interface Cable for Motorola Radio CDM750 M1225 CM300 GM300 An essential wiring accessory for installing a duplex repeater with compatible Motorola radios. This interface cable provides the connections needed to integrate CDM750, M1225, CM300 and GM300 radios into standard duplex repeater systems, simplifying setup and improving reliability. Key benefits Enables duplex repeater operation: provides the wiring interface to use these Motorola radio models in transmit/receive repeater configurations. Saves installation time: preassembled interface cable reduces custom wiring and avoids cutting into factory harnesses. Reliable signal transfer: designed for stable audio and control connections under continuous use. Minimizes configuration errors: uses the correct wiring approach for the listed Motorola models to reduce troubleshooting during installation. Key attributes Functionality: interfaces radio control and audio lines required for duplex repeater setups, helping connect the radio to a repeater controller or duplexer system. Compatibility: specifically made for Motorola CDM750, M1225, CM300 and GM300 radio models. Size and form factor: compact, flexible cable suited for radio rack or cabinet installations and easy routing in confined spaces. Construction and durability: built for repeated installations and longterm use with secure connectors and insulated conductors to resist wear in operational environments. Performance: supports clear, consistent audio and reliable control signaling for stationgrade repeater operation. Typical applications and use cases Amateur radio repeater installation: Connect a Motorola CM300 or GM300 radio as the base station transmitter or receiver in a community repeater, enabling local groups to expand coverage. Commercial or fleet systems: Integrate a CDM750 or M1225 into a fixed repeater site for businesses that need extended twoway radio coverage across a facility or campus. Service, and bench testing: Radio technicians can use the cable when configuring or diagnosing repeater wiring, speeding up setup and verification on the workbench or in the field. What installers should know Intended for use with the specific Motorola models listed. Confirm radio model before installation. Designed to interface radio audio and control connections typically required by repeater controllers and duplexer systems; installation may require knowledge of your repeater controller wiring and grounding practices. For performance, route and secure the cable away from power RF sources and sharp edges. This Duplex Repeater Interface Cable provides a straightforward, reliable way to incorporate Motorola CDM750, M1225, CM300 and GM300 radios into duplex repeater systems, reducing installation complexity and improving operational stability.