HD 236.4 S2:1978
(Main)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
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
Applies to all transmitters for A3 class of operation. Applies also to radiotelephony transmitters with 1, 2, 3 or 4 channels for A3A, A3B, A3H and A3J class of operation, and to frequency modulated transmitters for monophonic sound broadcasting. Applies in part to transmitters for A7A and A7B class of operation. HD 236.4 itself describes standard operating conditions, standard modulation input arrangements and frequencies (Section One). It also describes standard methods to be used for measuring input impedance, the amplitude/frequency characteristics and the intelligible crosstalk (Section Two).
Meßverfahren für Funksender - Teil 4: Amplituden/Frequenz- Charakteristiken und nichtlineare Verzerrung in Funksendern für Funkfernsprechen und Tonrundfunk - Ergänzung 1: Hauptabschnitt 3
Méthodes de mesure applicables aux émetteurs radioélectriques - Partie 4: Caractéristiques amplitude/fréquence et distorsion de non-linéarité dans les émetteurs de radiotéléphonie et de radiodiffusion sonore - Complément 1: Section 3
S'applique à tous les émetteurs pour émissions de classe A3, ainsi qu'aux émetteurs de radiotéléphonie à 1, 2, 3 ou 4 voies pour émissions de classe A3A, A3B, A3H, A3J, et aux émetteurs de radiodiffusion sonore pour émissions monophoniques de classe F3. S'applique partiellement aux émetteurs pour émission de classe A7A et A7B. Décrit les conditions normales de fonctionnement, les circuits d'entrée normaux, et les fréquences normales de modulation (section un). Elle décrit également les méthodes normales à utiliser pour mesurer l'impédance d'entrée, les caractéristiques amplitude/fréquence et la diaphonie intelligible (section deux).
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 three (IEC 60244-4:1973 + IEC 60244-4A:1976)
General Information
- Status
- Withdrawn
- Publication Date
- 09-Jul-1978
- 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
Relations
- Effective Date
- 29-Jan-2023
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
Frequently Asked Questions
HD 236.4 S2:1978 is a standardization document published by CLC. Its full title is "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". This standard covers: Applies to all transmitters for A3 class of operation. Applies also to radiotelephony transmitters with 1, 2, 3 or 4 channels for A3A, A3B, A3H and A3J class of operation, and to frequency modulated transmitters for monophonic sound broadcasting. Applies in part to transmitters for A7A and A7B class of operation. HD 236.4 itself describes standard operating conditions, standard modulation input arrangements and frequencies (Section One). It also describes standard methods to be used for measuring input impedance, the amplitude/frequency characteristics and the intelligible crosstalk (Section Two).
Applies to all transmitters for A3 class of operation. Applies also to radiotelephony transmitters with 1, 2, 3 or 4 channels for A3A, A3B, A3H and A3J class of operation, and to frequency modulated transmitters for monophonic sound broadcasting. Applies in part to transmitters for A7A and A7B class of operation. HD 236.4 itself describes standard operating conditions, standard modulation input arrangements and frequencies (Section One). It also describes standard methods to be used for measuring input impedance, the amplitude/frequency characteristics and the intelligible crosstalk (Section Two).
HD 236.4 S2:1978 has the following relationships with other standards: It is inter standard links to EN 60244-15:2000, EN 12560-5:2001, EN 1514-3:1997, EN 1515-2:2001, HD 236.1 S1:1977, HD 236.3 S1:1977, HD 236.2 S1:1977, EN 60244-12-2:1993, EN 60244-11:1993. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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