Abstract: Described embodiments relate to a receiver device for controlling agricultural machinery. The receiver device comprises a receiver module for communicating with an external device; throttle control circuitry in communication with the receiver module, configured to override a built-in throttle control mechanism of the machinery and allow for control of a throttle function of the machinery; ignition control circuitry in communication with the receiver module, configured to override a built-in ignition control mechanism of the machinery and allow for control of an ignition function of the machinery; and auxiliary apparatus control circuitry in communication with the receiver module, configured to override a built-in auxiliary apparatus control mechanism of the machinery and allow for control of an auxiliary apparatus function of the machinery.