A coaxial cable's datasheet quotes an attenuation of per at

PHYSICS · Subjective · Fermi University Physics · Electricity, Magnetism & Electromagnetism · Electromagnetic waves and their propagation · Electromagnetic waves and their propagation

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Problem

A coaxial cable's datasheet quotes an attenuation of

2.0\,\mathrm{dB}

per

100\,\mathrm{m}

100\,\mathrm{MHz}

, with the loss dominated by the skin-effect resistance of the conductors. Using the fact that this conductor loss scales as

\sqrt{f}

, estimate the attenuation, in decibels, of a

60\,\mathrm{m}

run of this cable at

225\,\mathrm{MHz}

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