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weechat-radio:$ HF antennas

Which antenna to put up for HF, how long to cut it, and which bands it will work on. Pick a type in the calculator, slide the length and height, and it gives you the rest and a search term to build or buy one.

Antenna types

Orange dots are the current running along the antenna; green rings are the signal leaving it.

    Calculator

    Lengths are for bare copper wire: cut a little long and trim. Bands in green work without a tuner, yellow ones work with a tuner or with less signal.

    Plan a path with your antenna: which frequency. Also: VHF and UHF antennas · radio setup.