IEC 60244-3:1972

FOREWORD
PREFACE
INTRODUCTION
Clause
1. Object
2. Scope
SECTION ONE - GENERAL TERMS RELATING TO WANTED MODULATION
3. General notes on modulation
4. Amplitude modulated emissions
5. Angle-modulated emissions
6. Pulse-modulated emissions
SECTION TWO - MEASUREMENTS RELATING TO WANTED MODULATION
7. Modulation factor of amplitude-modulated emissions
    with full carrier
8. Utilization factor of amplitude-modulated emissions
9. Frequency (or phase) deviation, frequency shift and
    centre-frequency variation of angle-modulated emissions
10. Utilization factor of angle-modulated emissions
11. Utilization factor or modulation factor of pulse-modulated
    emissions
SECTION THREE - CHARACTERISTICS OF TRANSMITTERS RELATING
                TO WANTED MODULATION
12. Input voltage for rated modulation, modulation input ratio
    and utilization factor/input voltage characteristic
13. Maximum long-term utilization (or modulation) factor and
    maximum short-term modulation input ratio
SECTION FOUR - VARIATION IN THE CARRIER CAUSED BY MODULATION
14. General notes on carrier-amplitude variation
15. Carrier-amplitude variation in transmitters for
    radiotelephony or sound broadcasting with full carrier
16. Carrier-amplitude variation in radiotelephony
    transmitters with reduced carrier
SECTION FIVE - UNWANTED MODULATION, INCLUDING HUM AND
               NOISE MODULATION
               (Under consideration)