Documentation

Welcome to the Earth Shack Software documentation hub. Select your product below for installation steps, system requirements, feature details, offline behavior, and data source information.

Sentinel

Real-time Earth and space situational awareness. Satellites, earthquakes, volcanoes, tectonic plate boundaries, grayline, and location-based weather context in a single browser-based display.

→ Sentinel Documentation

Quick links: Getting Started · Features · Offline Behavior · Data Sources · Keyboard Shortcuts

Guardian

Space weather, propagation, and signal-environment situational awareness for operators, communicators, educators, preparedness users, and technical professionals. Live NOAA/SWPC data, HF band conditions, aurora, satellite tracking, local reference context, and a configurable live ticker.

→ Guardian Documentation

Quick links: Getting Started · Space Weather Panel · HF Band Conditions · Satellite Tracking · Custom Ticker

General

System Requirements (both products)

  • Browser: Current versions of Chrome, Edge, Firefox, or Safari. Chromium-based browsers are recommended.
  • OS: Windows 10+, macOS 11+, Linux (any modern distribution)
  • Display: 1080p or 4K recommended; other resolutions may work. Optimized for full-screen or dedicated second-screen use.
  • Internet: Optional for core display functions; required for live feed refreshes.
  • Install: None. Open the HTML file directly in your browser.

Getting started

  1. Download your file from the link in your order confirmation email.
  2. Open the HTML file in a supported browser.
  3. Enter your local reference location when prompted. Radio users may think of this as QTH or DE station location.
  4. Press F11 for full-screen.

You are operational in under 60 seconds.

Keyboard shortcuts (both products)

  • H or F1 — Open the Help overlay
  • I — Open the Info / Quick Start panel
  • F11 — Toggle full-screen (browser)

Additional product-specific shortcuts are listed in the in-app Help overlay (press H).

Offline behavior

Both products are designed to continue operating when internet connectivity drops. Core display elements, clocks, local reference markers, and satellite propagation continue using internal models and last-known orbital elements. Live data feeds such as earthquakes, space weather, TLE refreshes, weather, alerts, and custom ticker feeds pause until connectivity returns. A feed-status indicator shows which sources are currently fresh, stale, or unavailable.

Release Notes

Version history and change logs for each product:

Attribution

Full third-party software and data source attribution: