DEAD_AIRDEAD_AIR

// Briefing

A regional network learns a relay is down when listeners phone in — which for a night transmitter can be hours of dead air before anyone official knows. The relays report telemetry; nothing was listening to it for silence.

DEAD_AIR listens. Every relay's carrier and audio level lands in SQLite, a Svelte board draws the region as a strip of signal traces, and a flatline pages the duty engineer before the first listener reaches for the phone.