Low Frequency Radio Range (A-N) Simulator

Heading: 0° | Fuel: 100% | Dist: 1000
GainA: 0 | GainN: 0 | Difficulty: 0

Controls: Left Arrow (←) or A = turn left | Right Arrow (→) or D = turn right

Goal: Fly towards the radio beacon at the center of the map using only audio cues.

You will hear overlapping Morse code: "A" (· —) in some sectors, "N" (— ·) in others.
When perfectly on one of the four equisignal beams, the A and N overlap exactly, producing a steady continuous tone.
If you hear distinct "dit-dah" (A) you are in the A zone – turn accordingly.
If you hear distinct "dah-dit" (N) you are in the N zone.
Find and follow the steady tone to reach the beacon.

Fuel decreases over time. Reach the beacon (get very close) before fuel runs out!

Click the page first to enable sound (browser requirement).

'X' key switches to practice mode. 'Z' resets difficulty to 0