An FM modulator, or transmitter, is convenient to use in a car to play audio files recorded on a flash drive if the installed music system is not equipped with a USB interface.
Instructions
Step 1
All FM modulators work according to a simple principle: the device plays audio files from the memory of an external media (or from internal memory) and broadcasts them at a set radio frequency in the FM band. The car audio system or radio is tuned to the same frequency, which makes it possible to listen to the recorded files.
Step 2
To connect the FM modulator, it is enough to have a free 12-volt socket or cigarette lighter in the car. Plug the modulator into the socket and use the buttons to set the radio frequency in the FM range, which is not broadcasting local radio stations. It is best to choose a frequency that is as distant as possible from the frequencies at which radio stations transmit, so that no interference occurs when the modulator plays audio files.
Step 3
Now turn on the car radio and tune its receiver to the frequency that was set in the modulator. Start playback on the modulator by pressing the Play button. If everything was done correctly, you will hear the sound of the audio files reproduced by the modulator from the speakers of the car audio system.
