Category Archives: Attenuation

Atmospheric absorption of millimeter waves

Adding Water Vapour Attenuation to NPM Library `AttenuationByAtmosphericGases`

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Previously, in NPM Javascript to compute Attenuation By Atmospheric Gases ( ITU-R P.676-9), the Javascript Library is published on NPM that computes the attenuation (unit of dB loss per km) given the frequency, temperature and the atmospheric pressure (unit of hPa). with the latest commits to the package AttenuationByAtmosphericGases version 2.0.0, the library allows also Continue Reading »

Atmospheric absorption of millimeter waves

NPM Javascript to compute Attenuation By Atmospheric Gases ( ITU-R P.676-9)

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ITU-R P.676-9 is proposed by International Telecommunication Union that recommends the Attenuation by atmospheric gases which are influenced by frequency, temperature and atmospheric pressure (unit of hpa). In case of temperature is not known, the mean temperature can be used, where this can be found in document ITU-R P.1510. In here, we know that the Continue Reading »