Withdrawn

GB/T 5581-1985Specification and measuring method of frequency-modulated voice-frequency telegraph set for a modulation rate of 75 Bauds with channels spaced at 180 Hz (English PDF)

75波特/180Hz调频音频电报机技术要求和测试方法

GB/T 5581 | Evolution and historical versions

Std ID	Title	Status
GB/T 5581-1985	Specification and measuring method of frequency-modulated voice-frequency telegraph set for a modulation rate of 75 Bauds with channels spaced at 180 Hz	Obsolete

GB/T 5581-1985 is obsolete. This page sells the obsolete edition, for projects and contracts that still cite it.

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Issued by

National Bureau of Standards

Level / Type

National · Recommended

Issue date

January 1, 1985

Implementation date

July 1, 1986

Scope

GB/T 5581-1985 is the English-translated version of 75波特/180Hz调频音频电报机技术要求和测试方法.

GB/T 5581-1985 is the Chinese national standard "Specification and measuring method of frequency-modulated voice-frequency telegraph set for a modulation rate of 75 Bauds with channels spaced at 180 Hz".

It was issued on January 1, 1985 by the National Bureau of Standards, and took effect on July 1, 1986. It is obsolete: it has been withdrawn (abolished on October 14, 2005).

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Document preview — GB/T 5581-1985

National Standard of the People's Republic of China

Issued by: National Bureau of Standards

Document data

1 Document data

Sector: National standard (Recommended).

Issuing body: National Bureau of Standards.

Date of issue: 1985-01-01.

Date of implementation: 1986-07-01.

Status: obsolete, withdrawn on 2005-10-14.

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

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