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== ham band by day or night ==VHF* 6m : sporadic, mostly daytime. HF* 10m : evening propagation and daytime mostly and during high sunspot period of solar cycle. * 12 - 17m : daytime bands, usually opened.* 20m : Can be opened day or night. This is a reliable band for DX.* 40m : local skip during the day, DX at night.* 80m : local skip during the day, longer distance DX at night.MF* 160m : night propagation. local skip.