What does the repeater do to enhance a radio signal?

The primary function of a repeater is to receive a weak radio signal and then re-transmit it at higher power. This capability enables the signal to cover greater distances and overcome obstacles that may weaken or obstruct the communication. Repeaters are essential in enhancing the reach and clarity of communication in tactical operations, ensuring that messages can be effectively sent and received between units that might be spread over large and challenging terrain.

By re-transmitting the signal at a higher power, the repeater effectively amplifies the original communication, allowing it to be received clearly on the other end of the transmission path. This enhancement is crucial in tactical situations where reliable communication can significantly impact mission success.

In contrast, filtering or merely strengthening without retransmission does not provide the same level of improvement in signal integrity and reach. While signal filtering can help remove unwanted noise, it does not enhance the signal's strength or coverage. Therefore, the process of re-transmission at a higher power is key to the functioning of repeaters in tactical communications.