MHz = Mega Hertz; GHz = Giga Hertz. Frequencies used in RC and FPV

Number of cells in a LiPo battery. Higher cell count = higher nominal voltage

Propeller sizes, also used to describe the size of an FPV drone

Incorporates 4 ESCs on a single board, typically mounted under a flight controller as a stack

Type of electricity from wall socket. Has Live and Neutral wires

Sensor that measures acceleration forces in a specific direction

Also used interchangeably with rate mode and manual mode

Controller active even when throttle is at zero when the drone is armed

Stabilized flight mode using both gyroscope and accelerometer sensors

Additional channels to the 4 control stick channels, used for changing flight modes & controlling peripherals

Electrical wire size measurement; larger number = smaller wire

Provides constant voltage (e.g. 5V) for other RC equipment such as FPV camera and radio receiver

Betaflight — popular flight controller firmware for FPV drones

Bind-N-Fly: pre-built model minus the radio transmitter; you need your own radio to bind

Special code stored in non-volatile memory that can interface with a PC to download a user's program

Very loud speaker used in drones for low voltage and lost model alarms

Capacitors — cylinder components with two legs soldered onto ESC's power pads for reducing electrical noise

Tends to be slower than freestyle drones, great for smooth and up-close shots of people, animals and properties

Command Line Interface in Betaflight where you can enter commands

Solder pad on ESC/FC for current sensor data

Clockwise / Counter-clockwise direction. Each quadcopter uses 2 CW and 2 CCW propellers; must be installed correctly for takeoff

Type of electricity from power source with Positive and Negative (+ and -), such as a battery

If you have trouble flashing FC firmware directly, enter DFU mode by holding the boot button on the FC board while powering on

A type of digital ESC protocol