Coaxial cable termination types are the core basic technical system in the networking engineering of RF splitters. As key devices for signal splitting and combined transmission, the operational stability, power distribution accuracy and signal transmission loss of RF splitters fully rely on standardized coaxial cable termination processing technologies and adapted termination types. In the complete RF distribution system, coaxial cable terminations serve as critical hubs connecting cables, splitters and load ports. Different coaxial cable termination types adapt to RF splitters of different specifications and working conditions, and directly determine the port matching state, multi-channel signal balancing effect and long-term operational reliability of splitters. From the perspective of splitter application, understanding the characteristics, applicable scenarios and process standards of various coaxial cable termination types is an essential prerequisite to ensure compliant networking and qualified performance of RF distribution systems.

　　The working principle of RF splitters is realized based on impedance balance and power splitting, which puts forward high requirements for impedance matching, port tightness and signal isolation of coaxial cable terminations. The mainstream coaxial cable termination types on the market are mainly divided into five categories: standard impedance terminations, locking terminations, waterproof outdoor terminations, test-specific terminations and no-load matching terminations. Each type corresponds to different application scenarios of RF splitters with independent functions and cannot be used interchangeably. Among them, standard impedance terminations are the basic types adapted to conventional civil RF splitters, including two core specifications of 50Ω and 75Ω, which accurately correspond to the two mainstream impedance systems of splitters. They are mainly used for port termination of indoor signal coverage, household RF distribution systems and ordinary weak current engineering splitters, which can quickly complete the impedance closed loop of idle splitter ports and solve the problem of uneven power distribution caused by no-load mismatch.

　　Locking coaxial cable terminations are dedicated types adapted to industrial-grade and high-precision RF splitters, as well as the preferred termination solution for high-end splitter networking. Ordinary plug-in terminations are prone to loose contact due to equipment vibration and cable tension, resulting in offset output power of each splitter channel and intensified signal reflection, which seriously damages the balance of multi-channel signal distribution. Featuring a built-in locking structure, locking terminations can be firmly locked with RF splitter ports to eliminate contact gaps and displacement, and maintain a stable impedance connection state at all times. Widely applied in base station splitters, precision test splitters and vehicle-mounted RF distribution systems, this type of termination ensures that splitters maintain an accurate power distribution ratio during long-term continuous operation and avoid system failures caused by poor port contact.

　　Outdoor waterproof terminations, test-specific terminations and no-load matching terminations are respectively adapted to special working conditions and commissioning scenarios of splitters. Adopting a fully sealed waterproof and dustproof structure, outdoor waterproof terminations are specially designed for outdoor wall-mounted splitters and building outdoor signal distribution equipment. They can resist erosion by rain, dust and temperature differences, ensuring long-term stable matching of outdoor distribution systems. Test-specific terminations feature higher precision and extremely low impedance errors, which are mainly used for calibration and commissioning of laboratory RF splitters and instrument-matched splitters to accurately restore the rated splitting performance of splitters. No-load matching terminations are specially designed for redundant ports of multi-port splitters, which can absorb excess power from idle splitter ports, balance the impedance parameters of each channel, avoid multi-channel distribution imbalance caused by single-channel no-load state, and greatly improve the overall working accuracy of splitters.

　　In the construction, operation and maintenance of RF distribution systems, mismatched termination types are the main cause of splitter performance failure. If a 75Ω civil splitter is matched with 50Ω terminations or an outdoor splitter is equipped with ordinary indoor terminations, it will directly cause link impedance disorder, excessive standing wave ratio and sharply increased power distribution loss. These problems will not only reduce the signal transmission efficiency of splitters, but also trigger signal crosstalk and phase offset, and even burn out the internal circuits of splitters in severe cases. Therefore, accurately matching coaxial cable termination types according to the impedance specifications, installation environments and functional requirements of splitters is the core key of RF networking. Proper selection of termination types can maximize the splitting and combining performance of RF splitters, optimize the consistency of multi-channel signal transmission, and reduce the failure probability of system operation and maintenance.

　　In conclusion, diverse coaxial cable termination types form the terminal adaptation system of RF distribution systems, serving as an important supporting guarantee for the stable, accurate and long-term operation of RF splitters. With the upgrading of RF distribution systems toward high density, high precision and full-scenario coverage, various specialized and refined coaxial cable termination types are continuously iterated. By accurately adapting to splitters under different working conditions, they optimize the matching structure of RF links and steadily improve the networking quality and operational stability of RF distribution systems, providing indispensable basic technical support for modern RF distribution engineering.