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Typical Noise Floor on HF Radio Bands

August 13, 2026

Chart comparing expected HF noise levels by location type across the 80, 40, 20, 15, and 10 meter amateur bands.

HF Noise
Chart comparing typical HF noise floor levels in S-units and dBW per hertz for quiet rural, rural, suburban, urban and metro, and business district locations across the 80, 40, 20, 15, and 10 meter amateur bands.