What precaution should be taken if the signal check is done on the ground?

Conducting a signal check on the ground according to established ground maintenance protocols ensures that the check is performed systematically and safely. Ground maintenance protocols outline the necessary procedures and checks required to ensure that communication equipment is functioning properly before flight operations begin. This may include verifying equipment settings, checking for interference, and ensuring that all regulatory requirements are met.

By following these protocols, operators can prevent equipment malfunction during flight, maintain compliance with safety regulations, and enhance operational efficiency. Ultimately, adhering to these protocols minimizes the risk of communication failures in flight, thereby ensuring safety and reliability in aviation operations.