Alt

Telemetry; Barometric altitude above ground level in (meters or feet) reported by variometer sensor.

Alt-

Telemetry; Barometric minimum altitude above ground level in (meters or feet) reported by variometer sensor.

Alt+

Telemetry; Barometric maximum altitude above ground level in (meters or feet) reported by variometer sensor.

Antenna

A device such as a wire or metal rod for sending or receiving radio waves. Some common types include: Printed Circuit Board (PCB) , Whiskers, Dipole, Mono-pole, V, Inverted V, Circular Polarized (CP), Skew Planar Wheel(SPW) with many other types … Continue reading

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APM

ArduPilot Mega – a flight controller board with built in gyros, accelerometers, and optional GPS. The APM is open source hardware, based on an Atmel micro controller, originally designed and manufactured by 3DRobotics.

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Arduino

Open source hardware and software to test prototype devices, frequently used by hobbyists and developers of new devices

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Arrow

The arrow symbols ↑  or ↓ describe the position of the 8 physical switches on the Taranis.  The up arrow ↑ indicates a switch in the UP or FORWARD position.  The down arrow ↓ indicates a switch in the DOWN or REARWARD position.  For … Continue reading

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Autorotate

A process by which a helicopter can land without power by forcing air through the collective pitch rotor disc, allowing the rotor blades to continue turning.  The pitch of the spinning blades is adjusted when close to the ground temporarily … Continue reading

AVCS

Angular Vector Control System.  Typically a heading-hold gyro which maintains the helicopter in the current direction until instructed to change by rudder command from the Tx.  Allows the heli to fly sideways or backwards as well as hold position in … Continue reading

avrdude

A type of open source software to create operating system code

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Backlight Mode

Specifies LCD display backlighting wakeup activity. Choice of: OFF, Keys (detect button press), Controls (gimbal stick/slider/knob/switch), Both (Keys or Controls), or ON (always on)

BEC

Battery Eliminator Circuit – a voltage regulator built into an Electronic Speed Controller (ESC) to power the radio receiver and servos. Can be either a linear design or a switching design – different merits for each.

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