What should be checked to ensure proper installation of coaxial cabling?

To ensure proper installation of coaxial cabling, all of the factors mentioned are important. Each plays a critical role in the overall performance and reliability of the coaxial cable installation.

The type of connector used is crucial because different connectors may have varying levels of performance and compatibility with the coaxial cable and the devices being connected. The correct connector ensures a proper fit and minimizes signal loss, which can occur with mismatched or inferior connectors.

Signal strength after installation is also essential. This involves measuring the received signal at the end of the cable to ensure it meets the required specifications for performance. Proper signal strength is necessary for the devices to operate effectively; inadequate signal strength could lead to poor performance or malfunction.

Lastly, the appearance of the cable routing is significant for both aesthetic reasons and practical considerations. Neat and organized cable routing helps prevent damage, facilitates future maintenance or upgrades, and ensures safety by minimizing trip hazards.

Considering all these elements ensures that the installation not only functions optimally but also adheres to good practices in both performance and safety, making "all of the above" the best choice.