RC Transmitters

An RC transmitter is an electronic device that uses radio signals to wirelessly transmit commands over a specified radio frequency to a receiver connected to an aircraft or a remote-controlled drone. Some radios allow for the connection of an external transmitter module, which enables the use of different frequencies (such as 868 MHz on a 2.4 GHz radio) or a different receiver from another brand/protocol (e.g., Crossfire CRSF module with a Crossfire V2 Micro receiver in a FrSky Taranis).

Types of Gimbals:

• Hall Effect Gimbals (Digital): These gimbals use Hall sensors with magnets to detect stick position, making them more resistant to wear and tear.
• Potentiometer Gimbals (Analog): These gimbals utilize a resistive layer of a potentiometer to measure stick movements.

Gimbal sticks are produced with M3 or M4 threads, allowing for the attachment of different types of stick ends. Pilots who prefer the "pinch" grip may favor a different stick end than those who fly with their thumbs. Generally, stick lengths range between 25-27 mm and can be adjusted to suit personal preferences.

When purchasing an RC transmitter for your FPV drone, you must decide which "mode" you would prefer to use while flying. The mode determines the specific movement of the drone or aircraft assigned to a particular stick movement. There are four transmitter modes, with Mode 2 being the most popular and typically set as the default mode for most RC radios.