How to play Signal Tuner

1. A dashed ghost wave shows the signal you are looking for.
2. Turn the Frequency dial to change how many waves fit on screen, and the Amplitude dial to change how tall they are.
3. Drag a dial up or down, scroll over it, or focus it and use the arrow keys.
4. When your red wave matches the ghost, it turns yellow. Hold it steady for a moment to lock the signal.
5. Lock five signals. Your score is the total time.

Tips

• Match the frequency first: count the peaks, then fix the height.
• Hold Shift with the arrow keys for bigger steps, then fine-tune without it.
• The strength bar fills as you get close, so use it as a hot-and-cold guide.
• Small, slow movements beat big swings once you are nearly there.

Daily challenge

Once a day everyone gets the same round of Signal Tuner. You get one try, and your result is ready to share. A new one starts at midnight, your time.