NEW FM Radio Transmitter Module FOR DIY

 This item is FM radio transmitter module,you can use your phone,or Radio to receive this signal.

S1: press 1 times ,the frequency it will down  0.1MHZ . (press S1 5S , then it will default to 100MHZ)

S2: press 1 times.the frequency it will up  0.1MHZ .

S3: press 1 times.the frequency it will down  1MHZ .

S4: press 1 times.the frequency it will up  1MHZ .

S5: Input signal sensitivity control (1-8)
 

Notice: this module not with MIC, you need connect the mic to the audio jack.

1, working voltage 3.6-6 V, working current 35mA,With memory function in case of power-down

2, the transmit frequency range 76MHZ, 108MHZ, use the  frequency regulation button,you can set it.

3, transmit frequency interval 0.1 MHz.

4, volume is small and exquisite.

5, using a wire as the antenna, the length of the antenna according to actual listening environment can be appropriately increase or decrease forehead! ( this module not with the antenna, you need weld by yourself)

6, transmit frequency stability accurate, automatic channel surfing can capture, use more convenient.

7, transmit distance  MAX 100 meter, this distance base on the operational environment,if there was no wall,no other disturb,it maybe can match the MAX 100 meter,if you use it at home,maybe only about 10 - 30meter.please attention this,if you need big distance,maybe this one not suit for you. thank you