TV Signal Coverage Map

Interactive 3D terrain visualization of over-the-air TV signal strength

Signal Strength

Excellent > -30 dBm
Good -40 to -30 dBm
Moderate -50 to -40 dBm
Weak -60 to -50 dBm
Poor < -60 dBm

About This Map

This interactive map shows TV signal coverage across the continental United States. The data is computed using terrain-aware RF propagation modeling with SRTM elevation data for 593 million grid points (~160m resolution).

Tips:

  • Use the network selector to view coverage for specific TV networks
  • Toggle 3D terrain to see how mountains affect signal propagation
  • Click "My Location" to center the map on your position
  • Tilt and rotate the map with right-click drag or Ctrl+drag