BH1416/BH1417 waist button PLL FM transmitter kit/parts/FM stereo transmitter
(Product code: B17Jt)
The transmitter is a kit, you need to weld and debug it yourself, and the kit has a matching shell!
Our kit products only provide paper materials, not electronic documents, please forgive me!
The transmitter is only the size of a BP machine, with a waist buckle,
The overall size is 8X5.5X1.5cm
, The appearance is the same as the BP machine-type FM stereo transmitter, using the phase-locked loop FM stereo transmitter integrated circuit BH1417F, the working frequency is absolutely stable and reliable. It is powered by two AAA batteries, which can be connected to an external stereo sound source and a matching lavalier microphone. The stereo sound source jack can double as an external lavalier microphone jack. The audio transmission line or lavalier microphone line is also used as a transmitting antenna. The radio frequency part includes a C3355 radio frequency power amplifier, and the transmission distance is within 50 meters.
It is suitable for constructing home wireless audio, car MP3 wireless player, tour guide car, wireless teaching, wireless microphone, and business window dialogue. Send
The radio frequency can be adjusted as low-end 87.7, 87.9, 88.1, 88.3, ??88.5, 88.7, 88.9 seven frequencies optional or high-end 106.7, 106.9, 107.1, 107.3, 107.5, 107.7, 107.9 seven frequencies optional, only need to replace the frequency Change the four-digit DIP switch code on the board. Supporting schematic diagram, installation diagram and detailed principle description, supporting audio transmission line.
The following is the matching shell:
The assembled finished board is as follows:
The assembled finished machine is as follows:
The above transmission distance is for reference only, not the basic indicator of the transmitter. The transmission distance is affected by many factors, such as what antenna is used for transmission, the height of the transmitting antenna, the surrounding obstacles, the sensitivity of the receiver, the weather, etc., which will cause great discrepancies, and the actual usage and working environment of each customer Different, it is recommended to measure. If you are not satisfied after receiving the goods, please do not confirm the receipt of the goods, please negotiate and solve them in a friendly manner. Thank you for your cooperation!