Hello,
I just bought a sain sonic AX-05B Low Power fm Transmitter, I put it all together like is explained antenna first, power supply. then checked for transmission to my fm radio on the empty channel I selected air silence. Here is the problem, When I remove my speaker 3.5 plug in my computer audio and put the audio feed to the transmitter I get nothing from the computer. I checked my fm radio before the audio, all was silence at the frequency i choose, plugged audio in the audio port and nothing transmitted to the fm radio, yet I can plug my speakers back in and get sound. The cord I used to the transmitter is new. I use windows 7 and Sam Broadcaster software as I have an internet Radio station on the air. so I am a Loss as to what to do.