Observed arrival · 2026-09-21
SOTA LOS — W7W Washington
A line-of-sight lookup tool for Washington amateur-radio operators working SOTA summits.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Washington SOTA radio operators
- Worth noticing
- It pre-computes visibility for every W7W summit and six-character Maidenhead grid square in Washington.
Field notes
The tool models radio visibility between Washington operating locations and SOTA summits using six-character Maidenhead grid squares and summit references. Its result vocabulary is unusually concrete: clear begins at a zero-metre margin, marginal extends down to -50 metres, and blocked falls below that threshold. The page also exposes methodology and GitHub links, giving the compact utility a visible technical trail.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
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