Maximum ERP

The Maximum ERP tool allows you to compute the maximum effective radiated power, in watts, to be used at a specific location, under FCC Rule 90.205 for Power and Antenna Height Limits.  If you don’t have your HAAT (height above average terrain, a key component used to determine ERP), you can provide your site antenna height and ground elevation.

An accurate location can only be determined if you are using a wireless network.
  • Latitude:
  • Longitude:
Example: 41.02987
Example: -92.59838 (All Longitude values in the U.S. are negative.)
Please select a location on the map below. You may zoom in/out and click and hold to drag the map

This map displays the coordinates you have provided.