What is a Control Channel?
A Control channel is a digital stream of data that all radios on a trunked radio system monitor. Control channels inform radios what frequencies to use for certain talkgroups, data transmissions, status indications, emergency notifications, etc. For sound samples of what control channels of specific radio systems sound like: EDACS 9600 baud: http://www.kb9ukd.com/digital/edacs96.wav Motorola Type II: http://www.kb9ukd.com/digital/motorola2.wav MPT1327: http://www.kb9ukd.com/digital/mpt_1327.