When does a power amplifier make sense?

A power amplifier makes particular sense if you want to amplify your output signal to increase range and signal quality. There are a variety of scenarios in which the use of a "PA" can be helpful, for example, DX (long-distance transport): If you are trying to establish connections to distant stations, a power amplifier can help strengthen the signal and the probability increase successful transfers; Contest operation: In competitions, a higher transmission power is often an advantage in order to prevail over other participants. A power amplifier can help amplify your signals to score more points; Emergency radio operations: In emergency situations, the ability to transmit at higher power can be critical to maintaining communications over longer distances, particularly when conditions are difficult; Improve signal quality: In areas with high radio traffic or in environments with a lot of interference, a power amplifier can help improve the signal-to-noise ratio and provide clearer communication.