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Signal Identification Wiki

www.sigidwiki.com Reference Encyclopedia entries Hardware & electronics Candidate
Screenshot of www.sigidwiki.com captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 3 calendar years, with breakout response in 2 of them.

submissions
4
submitters
4
observed span
2019–2023
peak thread · 28 comments
253 pts
latest 20+ return · 2023-10-13
253 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

If you find "wave hunting" this interesting but don't have a SDR / receiver of your own, there are plenty of (free to use) WebSDRs to get started: http://websdr.org/

On a whim I brought out my SDR tonight for a bit of low frequency exploration. I found a wonderfully odd signal at 157 kHz and decided to look it up on sigidwiki - only to discover that the page was intensely unstable. Now, an hour later I saw this post on the front page of HN, Fermi’s exclusion principle must work for hobbies as well it seems.

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
362

reference only — not used in Hall rules or ranking

Total comments
34

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2019-10-10Radio Signal Identification Wikibcaa7f3a8bbc30
2021-12-12Signal Identification GuideFirst breakoutfortran771036
2023-04-16Signal Identification GuideLispSporks2230
2023-10-13Signal Identification WikiBest thread · Latest 20+ point returnhhthrowaway123025328