When the internet dies and cell towers go dark, your intelligence network is exactly what you built before the blackout. Build it now.
Cell towers operate on battery backup that depletes in 4–8 hours. Internet infrastructure follows shortly after. What survives grid failure: radio frequency communications. A layered blackout communications system has three tiers: receive-only NOAA weather radio, two-way radio for local coordination, and satellite communicators for guaranteed global reach.