QRN — What It Means in Ham Radio

QRN — Natural noise and static.

Atmospheric noise. Lightning crashes, static from a storm three states away. Nature's interference, as opposed to QRM.

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Related words

• QST — A general call to all amateurs.
• QRQ — Send faster.
• QSO — A conversation.
• QSA — Signal strength.
• QSX — Listening on a different frequency.
• QRM — Interference from other stations.
• QRZ — Who is calling me?
• QTR — The correct time.