QSB — What It Means in Ham Radio

QSB — Fading.

The other station's signal is rising and falling. Normal on HF — it is the ionosphere moving, not your radio failing.

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Related words

• QSL — Acknowledged. Understood.
• QSK — Full break-in.
• QSA — Signal strength.
• QSY — Change frequency.
• QRM — Interference from other stations.
• QSO — A conversation.
• QRX — Stand by. Wait.
• QRN — Natural noise and static.