Table: 1 of 2 To enable Type 99 Decode on this channel, press Tab to toggle the display to the appropriate tone table. In addition to enabling Type Type 99, correct decode choices and tone values must be programmed. *** Caution *** Make sure valid tones have been programmed for the type of decode 2 of 2 selected before continuing. The radio must also have the appropriate Front Panel Option Keypad installed before Type 99 will function. There may be up to three tone tables programmed in the radio.