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RF Coaxial Cable Loss

Estimate feeder attenuation from a cable data-sheet loss rate and installed length.

Inputs

Inputs

Range: 0–100 dB per 100 ft

Enter manufacturer loss rate in dB per 100 ft at the operating frequency and temperature.

Range: 0–10,000 ft

Enter installed coax route length in feet, including the actual feeder path.

Result

Coaxial cable attenuation (dB)
3.000

Formula

Calculation logic

Formula definitions and substituted values.

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Screening tool. Verify the result against the manufacturer's published rating, the actual equipment, route, floor, and applicable local requirements before ordering, installing, or relying on it.