A register of transmission engineering

Why a radio signal goes where it goes: the ionosphere, the mast, and the rules that follow from both.

A publication about transmission engineering. Not a broadcast station — no schedules, no listings, no coverage claims.

Reference

About this publication

KCHO.org is a publication about transmission engineering: why a radio signal goes where it goes, the hardware that shapes it, and the operating rules that follow from the physics.

It is not a broadcast station. There are no schedules, no programmes, no hosts, no playlists and no streams here, and the site does not present its name as a station identification. It is also not about a place: propagation is described by band, hour and ground conductivity rather than by territory, which is why there are no coverage maps.

How it is organised

The register runs to seven sections and twenty-two entries, and the header prints all of them at once — sections and entries together, with no menu to open. Every entry states one propagation or hardware fact and the operating consequence of it, which is the whole editorial rule.

Sources and corrections

Nothing here is a substitute for a licence document, a regulator's propagation curves or a manufacturer's manual. Where an entry cites a measurement — a layer altitude, a band edge, an authorised power — it names the body that publishes it. Corrections are welcome, and the fastest ones to act on quote the entry number and the sentence.

Contact and corrections →