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Building Fluency

CQ and Callsigns

Decode CQ, DE, and amateur-radio call patterns.

Learn these signals
This lesson’s signals are C, Q, D, E, K, 1, A, B, 2. Hear each one, then type the character it stands for.

Click to hear

Decode the Morse
Decode C, Q, D, E, K, 1, A, B, 2 from Morse. Look at the · − pattern (and listen), then type the character it stands for.

Morse signal

−·−·

What character is this? Type it on your keyboard.

Tip: click Hear signal to play this Morse once.

Remember
  • CQ means “calling any station.” DE means “from.”
  • Callsigns mix letters and digits — decode each signal in order.
  • Word gaps (Space) keep groups readable.
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