Land Mobile Propagation Curves

EAS: The FCC is asking all broadcast stations to file ETRS Form One by August 27. REC is pushing for 100% LPFM participation. If you need help, please let us know. Filing services available for all three ETRS Forms. Retain REC now! 1-844-REC-LPFM. Participation is mandatory whether you do it yourself or we do it..
NOTE: This page is not to be used for FM or TV broadcast. - Use our CURVES page instead.

This page can be used for the land mobile VHF bands between 30~50 and 148~174 MHz. It can also be used for the 6 meter and 2 meter amateur radio bands (it may also be safe to use with the 220 MHz band) as well as a potential narrowband broadcasting allocation at 26 MHz.

These curves are based on FCC Report R-6406: Technical Factors Affecting the Assignment of Facilities in the Domestic Public Land Mobile Radio Service by Roger Carey (FCC, 1964).

Data Entry

Select Curve Type:
Radio Band:
Search Type:
A: Effective Radiated Power (in kilowatts) - For 100 watts, enter 0.1
B: Height Above Average Terrain (in meters)
C: Distance (in kilometers)
D: Field Strength (dBu)