Smart PTT Quick Key Timer

Selects the maximum amount of time between PTT button-presses that determines how fast the radio-user must press the PTT button to effect a Quick Key press. A Quick Key (double press) of the PTT button can override the Smart PTT Type, Tx "Inhibit on" selection for a chosen Conventional Personality, thus allowing the radio to transmit when the current channel is busy (see also Smart PTT Retry Timer).