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

• QSK — Full break-in.
• QSB — Fading.
• QRM — Interference from other stations.
• QRX — Stand by. Wait.
• QRL — Is this frequency busy?
• QRG — Your exact frequency.
• QRU — Do you have anything for me?
• QRP — Low power operating.