Radio control transmissions

An object, such as an unmanned aerial, terrestrial or marine vehicle (UAV, UTV, UMV) or drone, travelling to a zone is detected by scanning frequency bands of radio frequency (RF) signals, mixing the RF signals, in duplicate, with first and second local oscillator signals, which may be 90 degrees out of phase, provided by a phase locked loop, filtering, in duplicate, with a narrow-band filter, amplifying, in duplicate and generating, via an RF power detector, an analog measure of RF signal power. An RF signature is generated and compared to known radio control (RC) communication protocols to determine the RC communication protocol used by the object and the detected object is engaged by transmitting an interference signal in synchrony with the RC communication protocol of the object. The interference signal may be transmitted at a frequency and timing associated with a frequency hopping scheme of the RC communication protocol used by the object.