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NIL HEARDRECEPTION LOG

The Pip

tier B · marker · 3756 / 5448 kHz · 56 captures · 432:49 received

Field notes from the target list

pip-3756: The Pip (night) — Heard 2026-09-18 21:00Z: 444 Hz pips, 0.16 s, ~44/min (period 1.3-1.4 s). Expect keyed-tone at ~0.75 Hz, weak — the analyzer needs its tone-band branch for this one. Day channel: 5448.
pip-5448: The Pip (day) — Untested in daylight; silent at night (2026-09-18 21:32Z). Same 444 Hz pip expected. RAF VOLMET 5450 leaks into the USB passband at +2.35 kHz — low-pass at 2.3 kHz before slicing.

Gallery every take, whether or not its audio is published

All captures

The capture list is rendered from the data under /data/ and needs JavaScript. Every capture also has its own page: see stations and the log.

data: index.json