Cxa1691/Cd1691/ Fm Receiver Board (Continuously Adjustable, No Squelch, Mono)

The receiving integration adopts CXA1691BM or CD1691CB, and the headphone cable doubles as the receiving antenna. This board has no squelch, that is, there will be a rustling sound when the station is not received. It includes a first-class 9018 high-frequency (antenna) amplifier circuit, which has high sensitivity and good sound quality. With automatic frequency control (AFC) function, it can automatically track the frequency change of the transmitter in the range of about 1MHZ after receiving the station. This function is beneficial to lock the frequency of the transmitter, even if the transmitter has a slight frequency change, it can still lock the transmitter The frequency of the machine makes its overall performance superior. This board can be matched with an FM transmitter to form a wireless audio system or a wireless monitoring system, or it can be used alone to receive FM broadcasts. The board is designed with a typical working voltage of 3V and the default receiving frequency (85-110MHz) is continuously adjustable. There are matching paper circuit schematic diagrams and instructions for use. Please note: This board is not equipped with switch plastic keys, frequency adjustment knobs and volume adjustment knobs, and is not equipped with headphones. If you need these, please purchase the BP machine shell and earphones separately, or make your own. Thanks! Package include:1pc The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.