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Calcimator

Military Radio Range Calculator

Calculate effective communication range from transmitter power, antenna specifications, frequency, and terrain for tactical radio planning.

Inputs

dBm
dBi
dBm
MHz
m
m

Results

Effective Range

6.99 km

Effective Range4.34 mi
Line-of-Sight Range11.65 km
Free Space Range4,486.51 km
Link Budget149 dB
Link Margin56.1 dB
How to Use This Calculator
  1. Enter transmitter power (watts) and antenna gain (dBi) for the radio being used.
  2. Set receiver sensitivity (dBm) from the radio specification sheet.
  3. Enter frequency (MHz) and antenna heights for both stations.
  4. Select terrain type to apply propagation loss adjustments.
  5. Review the calculated radio range (km) to plan radio relay positions and communications architecture.
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