Chapter 10 — Prosignes

Amateur radio prosigns: AR, SK, KN, AS, BT, HH. The CW protocol syntax.

The 6 signs of this chapter

6 signs to learn in this chapter. Click a tile for the dedicated reference page.

AR·−·−·SK···−·−KN−·−−·AS·−···BT−···−HH········

What you learn

Chapter 10 (premium) covers prosigns — those double letters sent without internal gap that structure a QSO. AR (end of message), SK (end of contact), KN (named station only), AS (stand by), BT (paragraph break), HH (erase). They unlock the "Boss down" badge.

Mission Morse lessons

Each chapter has two lessons: "listening" (8 audio questions) and "rhythm tap" (6 tapping questions). Lessons chain in Mission Morse once you sign up.

This chapter is included in Mission Morse Premium (€4.99 lifetime). The reference content stays publicly accessible — only the interactive missions require a premium account.

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