monad02_exp-chan-44_20260824-200329

In plain words A library keeps three lists: what was delivered, what was catalogued, and who checked it out. A measurement corpus needs the same three, and a gap between them is a fact about the pipeline, not about the room. This is the ledger, per day and receiver, with every session as a row you can open.

The rate ladder

Counts and yields

Records	574,603
Frames the radio saw	579,264
Empty records	9,272
useful_yield	0.9759
capture_yield	0.9920
Empty share	0.0161
Mean rate	319.2 Hz
Bytes	402,223,380
Band / channel / width	5 GHz / 44 / HT20

Quote useful_yield: (records − empty records) ÷ frames the radio saw. capture_yield counts an all-zero record as delivered. A low capture_yield on 2.4 GHz is DSSS/CCK traffic that yields no channel estimate, not a quiet channel. Both are derived ratios from two independent counters and exceed 1.0 on some sessions; the counts are exact, the ratios are not.

State

Sealed	yes
Decoded	decoded (1 of 1 segments)
Projected note	yes
Integrity flags	none
Run id	`lib-chan-abba-2026-08-24-01`
csid	0.2.0

Record classes

What the channel carried, by tone count and modulation. A bandwidth is printed only when every frame of the class named the same one.
Class	Records	Share	MHz
52t-legacy_ofdm	574,563	100.0 %	20
56t-ht	40	0.0 %	20