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Storms, fires, and power outages can interrupt cellular and internet service. Radio networks offer another transport, but their bandwidth and payload sizes constrain the information you can send.

A shared message format makes fields such as event category, GPS position, severity, and resource status easier for different devices to interpret consistently. EMRG defines that format for emergency alerts.

┌──────────────────────────────┐
│  cell tower    DOWN          │
│  fiber backhaul  DOWN        │
│  internet       DOWN         │
│  power grid     DOWN         │
│  ─────────────────────       │
│  voice radio    OK (slow)    │
│  text message   ???          │
│  structured data ???         │
└──────────────────────────────┘
          

The EMRG field decoder is a progressive web app. After its assets have loaded and cached, it can decode locally without a network connection. Offline availability depends on browser storage and cache retention. Paste complete hex to inspect the payload; no account is required.

CRC validation checks packet integrity. It does not establish who sent the message or whether the reported event is true.

┌─ EMRG TIER 0 · NANO ─────────┐
│ event:   structure fire      │
│ severity: 4 emergency        │
│ status:  01 new              │
│ gps:     39.978, -86.118     │
│ device:  0x000001            │
│ crc:     ✓ valid             │
└──────────────────────────────┘