Beeps SOS when armed and TX is turned off or signal lost

Beeps when TX is turned off or signal lost

Time to stay in landing mode until the motors are turned off and the craft is disarmed

distress signal (=SOS)

Warning beeps when board is armed with motors off when idle (repeats until board is disarmed or throttle is increased)

basic issue item lost

cognitively lost

Recovery / Lost communication

Beeps sound

Beeps when gyro has been calibrated

Disable all beeps.

initialisation beeps when board is powered on

Longer warning beeps when battery is critically low (repeats)

Setting volume of the startup beeps too high might damage the motors

The volume of the startup beeps

This sets if the TX only beeps one-time versus playing a startup song

Use Dshot beacon (use motors to sound beeps when disarmed)

use the number of beeps to

Warning beeps when battery is getting low (repeats)

reduction and limitation of armed forces and armaments

Signal Kit / MK-79 (illumination signal kit)

off-route (off route)

off-design / off design

lift-off / lift off

on-off keying; on/off keying (OOK)

direction and control of the armed forces

Beep when armed and RC smoothing has not initialized filters

observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)

arm-and-hand signal

command and signal

caution and advisory panel / emergency warning signal unit

emergency warning signal unit / caution and advisory panel

sounding signal frequencies at C and X bands