How to Play Radio Tuner
Use A and D or the fine-tune buttons to move by 0.1 MHz. Use Q and E for 1.0 MHz steps. Press Space or LOCK when you think you found the hidden station. A correct lock completes the stage. Press R to restart the current scan and P to pause.
About Radio Tuner
Radio Tuner is a free browser signal-search puzzle where each stage hides a transmitter somewhere on the FM band. Adjust the frequency, watch the signal meter and oscilloscope, and listen for cleaner feedback as you approach the station. Later stages add misleading interference peaks that can look strong but will not lock.