RF Calculators

RF Power

Convert between logarithmic and linear power scales (mW and dBm)


dBm

Power output

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Free Space Path Loss

Determine the power loss at a given distance and frequency


Path Loss (dB)

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Range Estimator

Estimate the range based on various parameters


Estimated Range (km)

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Estimated Range (mi)

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RSSI Estimator

Estimate the RSSI at a given range based on various parameters


Estimated RSSI (dBm)

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Inverse Square Law

Determine the additional range obtained by increasing power or gain


Distance factor

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Wavelength

Calculate the wavelength of a given frequency or vice versa


MHz

λ Wavelength (m)

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λ Wavelength (cm)

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Beamwidth Calculator

Determine the width of a directional antenna's beam at a given distance


Beamwidth (km)

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RF Power to Voltage

Determine the voltage of a given power level in an RF system


Voltage (VRMS)

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Voltage (Vpp)

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Scaled RSSI to dBm

Convert between Betaflight scaled RSSI and RSSI dBm


Scaled

RSSI

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