IEC 61146-3 : 1.0

VIDEO CAMERAS (PAL/SECAM/NTSC) - METHODS OF MEASUREMENT - PART 3: NON-BROADCAST CAMERA-RECORDERS

International Electrotechnical Committee

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1. General
     1.1 Scope
     1.2 Normative references
     1.3 Conditions
2. Video characteristics of the complete unit
3. Video characteristics related to the camera
     part only
4. Other anomolies due to the recorder section
     4.1 Chrominance to luminance intermodulation
          (PAL/NTSC)
     4.2 Luminance to chrominance crosstalk and moires
     4.3 Luminance to chrominance displacement
     4.4 Assembly audit system
     4.5 Insert edit system
     4.6 Tape damage in pause mode
5. Time base
6. Audio characteristics
     6.1 Signal-to-noise ratio (automatic gain control
          (AGC) on)
     6.2 Amplitude/frequency response
     6.3 Harmonic distortion
     6.4 Wow and flutter
     6.5 AGC operation range and hold time
     6.6 Directional response of the microphone
     6.7 Audio dub or insert quality (audio hole)
     6.8 Hi-fi audio tracking accuracy
     6.9 Audio FM recording
7. Viewfinder screen luminance
8. Automatic system and others
     8.1 Automatic exposure
     8.2 Automatic focusing
9. Classification
     9.1 General
     9.2 Classification of the characteristics to be
          specified
Figures
1. Chrominance to luminance intermodulation (PAL/NTSC)
2. Luminance to chrominance crosstalk and moires
3. Subcarrier band-pass filter characteristics
4. Output signal of band-pass filter
5. Luminance to chrominance displacement
6. Block diagram of the circuit arrangement for video
     timing of the edit system
7. Frame timing of the start time
8. Frame timing of the overwrite frame number (1)
9. Frame timing of the overwrite frame number (2)
10. Circuit arrangement for measurement of audio
     characteristics
11. Amplitude/frequency response
12. Circuit arrangement for measurement of
     signal-to-noise ratio (AGC on)
13. Circuit arrangement for measurement of AGC operation
     range and hold time
14. Curve showing output level as a function of input
     level
15. Hold time
16. Directional response of the microphone
17. Polar diagram of microphone sensitivity
18. Block diagram of test system
19. Timing chart of the hole of the overlap at a record
     pause or insert point
20. Timing chart of the hole of the overlap at the
     insertion and the dubbed point
21. Circuit arrangement for measurement of hi-fi audio
     tracking accuracy
22. Time difference between the video and audio signals
Annex A - Bibliography

Abstract

Description of measuring methods that are concerned with the assessment of the performance of non-broadcast camera-recorders (NTSC/PAL/SECAM). The appropriate measurements are to be applied according to whether the camera-recorder has a semiconductor camera or a tube.