Observed arrival · 2026-09-08
AntennaCalcs Turns Ham-Radio Formulas Into Four Browser Tools
A client-side calculator suite for sizing dipoles, EFHW antennas, Moxon beams, and coaxial cable losses.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The suite separates four common construction tasks into dedicated browser tools rather than presenting one general-purpose form. Its stated inputs and outputs are unusually concrete: EFHW calculations account for 49:1 or 64:1 UNUNs and wire velocity factor, while the Moxon tool exposes dimensions A through E for AWG or tubing inputs. The coax calculator also attempts to account for SWR-related reflected loss across 10 cable types.
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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