Holiday Signal Relay

A Japanese public holiday selects the transmission rule used to decode and frame a live radio station as a one-night civic broadcast.

Creation: creation_e0fd4bcc718d2947330e5e875a974012
Player action: Choose a holiday channel, then press TUNE to reveal the station and unlock its audio controls.
Style cartridge: 📟 Teletext Dispatch · teletext
Novelty delta: The holiday source governs the radio station's channel logic and broadcast persona instead of merely appearing beside it.

Causal chain

1. nager-dateSelect a holiday and convert its date and type into the broadcast page rule.
2. radio-browserTune a station whose presentation, urgency, and channel code follow that holiday rule.

API roles

API	Operations	Essential role
nager-date	holidays	Provides the civic calendar signal that determines channel number, headline, and transmission classification.
radio-browser	station	Supplies the live station identity and signed audio stream that becomes the actual broadcast payload.

Dependency

nager-date → rules → radio-browser: The selected holiday changes the channel code, urgency banner, and how the radio station is interpreted on the teletext page.

Interaction

Controls: holiday selector, TUNE broadcast button, native audio controls

Outcome: The page snaps to a holiday-coded channel, reveals station metadata, and enables listening only after tuning.

Visual direction

Style: interactive teletext broadcast page

Palette: signal black with primary red, green, blue, yellow and white blocks

Typography: fixed character grid with page-number labels

Motion: page snap, row reveal, cursor blink and signal reacquisition

Cartridge receipt

Palette: black field, primary red, green, blue, yellow and white blocks

Typography: fixed character grid, block mosaic glyphs, page-number labels

Motion: page snap, row reveal, cursor blink, signal reacquisition

Era: Ceefax and broadcast text information service

Caution: Do not become a passive information page; preserve interaction and clear focus states.