BUSY CHANNEL LOCKOUT: Inhibits TX while receiving DQT/QT tones that do not 
match the programmed decode tone for the current channel.
TIME OUT TIMER: Limits individual transmissions to a prog. amount of time.
BATTERY SAVE: Enables a battery saver mode to conserve on battery power.
CONTROL/WARNING TONE: Enables a speaker echo tone for the 5 top panel keys- Tone key,Low Power, T/A, D/A, Scan key.
DTMF ENCODE (12/16 KEY): Enables the installed DTMF option to encode the 12
DTMF tones: 0-9,*,# or the full 16 tones: 0-9,*,#, ABCD.
SWITCH ACTIVITY:
 {Power Select}: enables low power selector key.
 {Talk Around}: enables talkaround.
 {Add/Delete}: enables D/A key for user-selectable channel add/delete
               operation ( hold monitor sw.; press D/A key )overrides the 
               fixed D/A programming in the Channel Information screen.












