FM Stereo Transmitter Board FM Transmission Module Transmitter 76M-108M

Dual-channel stereo FM transmission module

Function description

1.Dual-channel FM stereo transmission.
2.Power-off memory function.
3.Working frequency display.
4.The input volume and transmission frequency are adjustable.
5.Supports wide voltage power supply.
6.Reverse connection protection for positive and negative poles.
7.Microphone pickup is not supported.
8.Support line input.

Instructions for Use

1.- key: Short press, frequency decreases,0.1MHz; Long press for quick adjustment.
2.+ key: Short press to increase the frequency by 0.1MHZ, long press for quick adjustment.
3.VOL key: Press briefly and adjust in a loop from 1 to 5 levels.

Overview of T030 Transmitting Module

   This product adopts an advanced MCU microcomputer controller, featuring a novel design and superior performance. The internal transmission chip uses a digital PPL tuning method, ensuring no frequency deviation or frequency running. There is no impact on the hand-held antenna either. When in use, an antenna is provided, and the antenna length may not be the best match, but it is sufficient for daily use. The working status of the chip is controlled by a program.

    This transmission module uses a stereo transmission IC for stereo transmission. The transmission frequency covers the FM band in China, Japan and Europe, adjustable from 76 MHz to 108MHz. It features input coupling and signal encoding. Through precise algorithm design, the sound is demodulated and played back. Whether it is high or low frequencies, it has first-class performance and excellent sound quality. The distortion rate and signal ratio have reached the broadcast-level standard.

Instructions on volume adjustment

   The audio signal input is set with 5 volume levels, with 1 level being the smallest and 5 levels the largest. The factory default is 3 levels. The principle for adjusting the volume of the input signal: The size of the input audio signal should be adjusted to a larger and undistorted range, which is the most appropriate. This will achieve the maximum audio signal ratio during playback. Beginners can use it without adjustment.