Skip to content

Parabolic Antenna Gain & Beamwidth Calculator

Free parabolic antenna calculator. Enter dish diameter, frequency and aperture efficiency to get gain in dBi, the −3 dB half-power beamwidth, linear gain and effective aperture. Useful for satellite, microwave and point-to-point links.

Find the gain (dBi), beamwidth and effective aperture of a dish antenna.

Related calculators