Explain what CTDs are in coaxial cable.

CTDs, or Coaxial Termination Devices, are critical components in coaxial cable systems. Their primary function is to ensure the proper termination of a coaxial cable in a transmission line, which helps prevent signal loss and reflections that could degrade signal quality. By providing a proper load at the end of the coaxial run, CTDs help maintain the integrity of the signal being transmitted through the cable.

In coaxial cable installations, it's essential to minimize any potential interference or signal degradation. Mishandling or incorrectly terminating a coaxial cable can lead to issues such as ghosting, inefficient signal power, or complete loss of signal. Therefore, employing Coaxial Termination Devices is a standard practice in maintaining optimal performance in coaxial systems. Understanding this function is vital for anyone working with modified or repaired coaxial systems, as it connects directly to signal integrity and overall system reliability.