Emergency Alert; Keypad Locking Setting; Reverse Frequency - Maas AHT-9-UV User Manual

2)

EMERGENCY ALERT [

Under standby mode, press [
"MENU"; then press [
will transmit emergency ring for 20S and then receive for 10S, until you
press PTT, it will exit.
3) KEYPAD LOCK SETTING
Under standby mode, press [
" " will be displayed at the top of LCD when keypad is locked.
4) REVERSE FREQUENCY ON/OFF
Under standby mode, press [
"R" will be displayed at the top of LCD when you turn on this function.
At this time, radio's transmitting frequency is its receiving one, and its
receiving frequency is its transmitting one.
42
] + [ ]
] to enter menu setting, LCD displays
] to turn on emergency alert function, radio
] for 2S to lock or unlock the keypad,
] for 2S to turn on or off this function,