The super-regenerative radio remote control circuit consists of a radio transmitter and an ultra-regenerative detector receiver. Radio transmitters: It is composed of a high-frequency carrier-frequency oscillator (usually 30~450MHz) that can produce equal-amplitude oscillation and a low-frequency oscillator that generates a low-frequency modulation signal. The circuits used to produce the carrier-frequency oscillator and the oscillating oscillator is generally: multiple oscillators, complementary oscillators, and quartz crystal oscillators. Low frequency modulated wave generated by the low frequency oscillator is generally a square wave with a certain width. If multi-path control, square waves with different widths can be used, or square waves with different radio frequencies remote control can be used to modulate high-frequency carriers to form a set of modulated waves, which are transmitted to the air as control signals to form a set of groups. The modulated wave has been transmitted to the air as a control signal. Super Regenerative Detector Receiver: The super-regenerative detection circuit is actually a high-frequency oscillator controlled by intermittent oscillation. The high-frequency oscillator uses a capacitor-type three-point oscillator and the oscillation frequency coincides with the transmitter's emission frequency. Intermittent oscillation (also known as quenched decoration oscillation) is generated during the oscillation of high-frequency oscillation, which in turn controls the oscillation and pause of the high-frequency oscillator. The frequency of discontinuous oscillations is determined by the parameters of the circuit (typically 100 to several hundred kilohertz). This frequency is selected low, the circuit ant jamming performance is better, but the receiving sensitivity is lower; on the contrary, the frequency is selected high, the receiving sensitivity is better, but the anti-jamming performance is worse. Both should be taken into consideration according to the actual situation. The super-regenerative detection circuit has a high gain. When no control signal is received, due to the interference of the external spurious signals and the thermal turbulence of the circuit itself, a special noise is generated, which is called super noise, and the frequency range of this noise is Between 0.3 and 5 kHz, it sounds like a rustling sound. When there is not any signal, the super noise level is very high, and the noise voltage is output after filtering and amplifying. This voltage is invoked as a state control signal to make the relay pull in or out (depending on the state of the design). When a control signal arrives, the circuit oscillates, the cracking noise is suppressed, and the high-frequency oscillator starts to oscillate. The speed of the oscillation process and the length of the rest period are controlled by the amplitude of the received signal. When the amplitude of the received signal is large, the initial level is high, the oscillation process is established quickly, and the interval time for each oscillation is also short, and the control voltage obtained is also high; conversely, when the amplitude of the received signal is small, the obtained control voltage is also low. In this way, a low frequency voltage that is consistent with the control signal is available on the load of the circuit, and this voltage is another control voltage of the circuit state. If it is a multi-channel RF receiver circuit, after the super-regenerate detection and low-frequency amplification of the signal, but need to be frequency-selective loop frequency selection, and then to control the corresponding control loop.