What are the two types of radio signals used in communication?

The two types of radio signals used in communication are simplex and duplex.

Simplex communication allows transmission in one direction only, meaning that one party sends a message while the other can only receive it, without the ability to respond simultaneously. An example of simplex communication is a traditional two-way radio where one person speaks while the other listens, and they must take turns to communicate.

Duplex communication, on the other hand, allows for simultaneous transmission and reception of signals. This is common in modern telecommunications where both parties can talk and listen at the same time, similar to a phone call, enhancing the efficiency of communication.

Understanding these types of communication is crucial in firefighting and emergency response as it directly affects coordination and efficiency during operations. Effective communication can make a significant difference in managing emergencies, ensuring safety, and providing timely responses.