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weechat-radio:$ VHF and UHF antennas

On 2m and 70cm the antenna and its height decide how far you reach. Pick a type in the calculator, set the frequency and height, and it gives you the sizes, the range 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

    Sizes are a starting point: build a little long and trim for the lowest SWR. Range is line of sight; hills and buildings cut it.

    Plan a path with your antenna: which frequency. Also: HF antennas · radio setup.