What indicates that the wire braid of an antenna cable is compromised?

The indication that the wire braid of an antenna cable is compromised is demonstrated by the presence of exposed wire. This situation typically arises when the protective insulation or outer braid is damaged, allowing the internal conductor to become visible. The integrity of the braid is crucial as it serves to shield the cable from electromagnetic interference (EMI) and helps to maintain the antenna's efficiency.

When the braid is intact, it prevents noise and other signals from affecting the performance of the antenna. However, if the braid is compromised and the wires become exposed, it can lead to signal degradation, increased susceptibility to interference, and potential safety hazards due to the risk of short circuits or electrical faults. Identifying this damage is essential for ensuring the proper functioning and safety of the avionics system.

While increased weight, flaking paint, and electrical surges may indicate other issues within the aircraft, they are not direct indicators of a compromised wire braid. Increased weight might suggest the addition of unnecessary materials or accessories, flaking paint could indicate environmental wear or chemical exposure, and electrical surges are more likely related to electrical issues or fluctuations within the system rather than the physical condition of the antenna cable's braid.