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SJ 20839-2002Computational methods of LW ground-wave transmission channels (English PDF)

长波地波传输信道计算方法

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Issued by

Ministry of Industry and Information Technology of PRC

Level / Type

National · Mandatory

Issue date

October 30, 2002

Implementation date

March 1, 2003

Scope

SJ 20839-2002 is the English-translated version of 长波地波传输信道计算方法.

SJ 20839-2002 — Computational methods of LW ground-wave transmission channels

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Document preview — SJ 20839-2002

National Standard of the People's Republic of China

Classification: M 50

What this standard covers1
Document data2

What this standard covers

This standard specifies the long-wave ground-wave field strength and the signal propagation delay is calculated. This standard applies to our long-wave radio system antenna excitation vertical electric field vertical component of the radio signal amplitude and propagation time delay calculations. Transmitting and receiving antenna phase center height of not more than one-sixth of the wavelength.

Document data

Chinese classification (CCS): M50.

Estimated length of the Chinese original: 18,123 words.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 12 pages — is available in the English PDF.

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