Methods of measurement for radio transmitters - Part 3: Wanted and unwanted modulation - Supplement 1: Appendices - Supplement 2: Unwanted modulation, including hum and noise modulation

Describes the conditions and methods of measurement for assessing the performance of transmitters with respect to wanted and unwanted modulation. The methods of measurement described are restricted to those properties that may be liable to ambiguous interpretation due to the application of different methods and conditions of measurement and are intended for type tests and acceptance tests but may also be used for factory tests.

Meßverfahren für Funksender - Teil 3: Nutz- und Störmodulation - Ergänzung 1 - Ergänzung 2

Méthodes de mesure applicables aux émetteurs radioélectriques - Partie 3: Modulation utile et modulation parasite - Complément 1: Annexes - Complément 2: Modulation parasite

Décrit les conditions et les méthodes de mesure pour relever les caractéristiques relatives à la modulation utile et parasite d'un émetteur radioélectrique. Les méthodes de mesure décrites sont limitées aux caractéristiques qui pourraient être l'objet d'interprétations équivoques en raison de l'utilisation de méthodes et de conditions de mesure différentes. Elles concernent aussi les essais de type et les essais de réception; elles peuvent aussi être employées pour les essais de contrôle en usine.

Methods of measurement for radio transmitters - Part 3: Wanted and unwanted modulation - Supplement 1: Appendices - Supplement 2: Appendices unwanted modulation, including hum and noise modulation (IEC 60244-3:1972 + IEC 60244-3A:1971 + IEC 60244-3B:1972)

General Information

Status: Withdrawn
Publication Date: 14-May-1977

Technical Committee: CLC/SR 103 - Transmitting equipment for radiocommunication
Drafting Committee: IEC/TC 103 - IEC_TC_103
Parallel Committee: IEC/TC 103 - IEC_TC_103

Current Stage: 9960 - Withdrawal effective - Withdrawal
Start Date: 01-Jan-2003
Completion Date: 01-Jan-2003

Ref Project: SIST HD 236.3 S1:1999 - Methods of measurement for radio transmitters -- Part 3: Wanted and unwanted modulation -- Supplement 1: Appendices - Supplement 2: Unwanted modulation, including hum and noise modulation

Relations

Replaced By: EN 60244-15:2000 - Methods of measurement for radio transmitters - Part 15: Amplitude-modulated transmitters for sound broadcasting
Effective Date: 29-Jan-2023

Refers: EN 1514-3:1997 - Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 3: Non-metallic PTFE envelope gaskets
Effective Date: 09-Feb-2026

Refers: EN 12560-3:2001 - Flanges and their joints - Gaskets for Class-designated flanges - Part 3: Non-metallic PTFE envelope gaskets
Effective Date: 09-Feb-2026

Refers: EN 12560-5:2001 - Flanges and their joints - Gaskets for Class-designated flanes - Part 5: Metallic ring joint gaskets for use with steel flanges
Effective Date: 09-Feb-2026

Refers: HD 236.1 S1:1977 - Methods of measurement for radio transmitters - Part 1: General conditions of measurement, frequency, outpout power and power consumption - Supplement 1: Appendices
Effective Date: 03-Feb-2026

Refers: HD 236.2 S1:1977 - Methods of measurement for radio transmitters - Part 2: Bandwidth, out-of-band power and power of non-essential oscillations - Supplement 1: Appendices - Supplement 2: Modulating signals for the measurement of bandwidth and out-of-band power of transmitters for telephony and sound broadcasting
Effective Date: 03-Feb-2026

Referred By: EN 60244-12-2:1993 - Methods of measurement for radio transmitters - Part 12: Guideline for drawing up descriptive leaflets for transmitters and transposers for sound and television broadcasting - Specification sheets
Effective Date: 03-Feb-2026

Referred By: EN 60244-11:1993 - Methods of measurement for radio transmitters - Part 11: Transposers for FM sound broadcasting
Effective Date: 03-Feb-2026

Referred By: HD 236.4 S2:1978 - Methods of measurement for radio transmitters - Part 4: Amplitude/frequency characteristics and non-linearity distortion in transmitters for radiotelephony and sound broadcasting - Supplement 1: Section 3
Effective Date: 03-Feb-2026

Standardization document

HD 236.3 S1:1999

English language

70 pages

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Frequently Asked Questions

What is HD 236.3 S1:1977?

HD 236.3 S1:1977 is a standardization document published by CLC. Its full title is "Methods of measurement for radio transmitters - Part 3: Wanted and unwanted modulation - Supplement 1: Appendices - Supplement 2: Unwanted modulation, including hum and noise modulation". This standard covers: Describes the conditions and methods of measurement for assessing the performance of transmitters with respect to wanted and unwanted modulation. The methods of measurement described are restricted to those properties that may be liable to ambiguous interpretation due to the application of different methods and conditions of measurement and are intended for type tests and acceptance tests but may also be used for factory tests.

What is the scope of HD 236.3 S1:1977?

What standards are related to HD 236.3 S1:1977?

HD 236.3 S1:1977 has the following relationships with other standards: It is inter standard links to EN 60244-15:2000, EN 1514-3:1997, EN 12560-3:2001, EN 12560-5:2001, HD 236.1 S1:1977, HD 236.2 S1:1977, EN 60244-12-2:1993, EN 60244-11:1993, HD 236.4 S2:1978. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

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HD 236.3 S1:1977 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

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