End of Transmission Tone (Roger Beep Tone)
Short press the SB1 button while turning ON the radio to enable/disable End of Transmission Tone.
Note: This setting is set to OFF by default.
Keypad Beeps
Keypad Beeps can be enabled/disabled by short pressing SB2 button (until radio beeps a "chirp") while turning ON the radio.
Setting VOX/iVOX Sensitivity
The sensitivity of the radio's accessory or microphone can be adjusted during VOX/iVOX operation to suit different operating environments. VOX/iVOX sensitivity can be programmed via the CPS.
1 = Low sensitivity
2 = Medium sensitivity
3 = High sensitivity
Keypad Lock/Unlock
You can lock the keypad to avoid accidentally changing your radio settings. Press and hold MENU for 4 seconds to lock the radio keypad. To unlock, press MENU for 4 seconds.
Note: The only buttons that will be not locked using this feature will be PTT and Button A (if Call Tone feature has been assigned).
MENU Options
To enter MENU, short press MENU button. The radio will take you to the next feature option. For each feature, you can navigate with the 
/ 
buttons. After selecting your desired settings, you can:
•press MENU to save and go to the next option
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