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sklademVydáno: 1973-01-01
IEC 60244-4:1973
Methods of measurement for radio transmitters. Part 4: Amplitude/frequency characteristics and non-linearity distortion in transmitters for radiotelephony and sound broadcasting
Méthodes de mesure applicables aux émetteurs radioélectriques. Quatrième partie: Caractéristiques amplitude/fréquence et distorsion de non-linéarité dans les émetteurs de radiotéléphonie et de radiodiffusion sonore
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| Označení normy: | IEC 60244-4:1973 |
| Vydáno: | 1973-01-01 |
| Jazyk: | Anglicky/Francouzsky |
DESCRIPTION
IEC 60244-4:1973
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. IEC 60244-4 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).