By default, Motorola radios are shipped with AGC enabled. Motorola radios seem to respond better on the DMR-MARC network with AGC turned off. Audio on the DMR-MARC network can sound purely awesome if our radios are programmed correctly or for some it can be piercingly loud if we use the default settings. It’s not necessarily the radio’s fault. These radios are meant to be used from quiet school administrator offices to loud mining compounds. So the radios must be flexible and the audio settings can be complicated to get just right.