QRM — What It Means in Ham Radio

QRM — Interference from other stations.

Man-made interference — another station, a nearby transmitter, electrical noise from equipment. The kind of noise a human caused.

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Related words

• QRT — Shutting down. Going off the air.
• QRO — High power. The opposite of QRP.
• QSA — Signal strength.
• QSP — Relay a message.
• QRQ — Send faster.
• QTR — The correct time.
• QRX — Stand by. Wait.
• QSY — Change frequency.