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HamClock-Next

HamClock-Next is an open-source amateur radio dashboard that displays real-time space weather, propagation data, DX cluster spots, maps, and dozens of other widgets useful to the ham radio operator.

It is a community continuation of the original HamClock created by Elwood Downey, WB0OEW (Silent Key, 29 January 2026), modernized with a SDL2-based rendering engine, a six-pane rotatable widget layout, and full browser support via WebAssembly.

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Key Features

• 45 widgets covering space weather, propagation, DX spots, maps, weather, tracking, and utilities
• Six rotatable panes — each pane cycles through any list of widgets on a configurable interval
• Map overlays — MUF, VOACAP, cloud cover, aurora, and more drawn live on the world map
• Presets — save and recall complete dashboard configurations with one click
• Runs everywhere — native Linux/macOS/Windows framebuffer and browser (WASM) builds
• K key — highlight every interactive region on screen with a tooltip

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Quick Links

• Getting Started — build, install, first launch
• Screen Layout — what each region of the screen does
• Widgets Reference — all 45 widgets described
• Map & Overlays — map projections and overlay layers
• Pane Customization — configure pane widget rotations
• Configuration Presets — save and recall configurations
• Setup & Configuration — all settings fields
• Data Sources & Network — what HamClock-Next fetches and from where
• Keyboard Shortcuts — K, Ctrl+Q, and in-dialog shortcuts
• Migrating from Original HamClock — what changed

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In Memoriam

HamClock-Next carries forward the work of Elwood Downey, WB0OEW, the original author of HamClock, who became a Silent Key on 29 January 2026. His tireless contribution to the amateur radio community lives on in every running instance.

73 de K4DRW