BS EN 61237-2:1995

FOREWORD
Clause
1 Scope and object
2 Normative references
3 General
4 Test conditions
5 Measuring methods and test signals
   5.1 Manual and automatic measurements
   5.2 Measurement of differences between adjacent
        tracks (fields/segments)
   5.3 Procedure of measurement
   5.4 Test signals
        5.4.1 Introduction
        5.4.2 Amplitudes and characteristics of test
               signals
        5.4.3 Test signal arrangement
6 Measurements of characteristics
   6.1 Amplitude of output signals in E-E mode and
        playback
        6.1.1 Luminance bar amplitude error
        6.1.2 Synchronizing pulse amplitude error
        6.1.3 Burst amplitude error
   6.2 Short and line time distortions
        6.2.1 K2T factor
        6.2.2 2T/bar ratio
        6.2.3 Bar tilt
        6.2.4 Base-line distortion
   6.3 Chrominance-luminance gain inequality
   6.4 Chrominance-luminance delay inequality
   6.5 Amplitude/frequency characteristics
        6.5.1 Luminance
        6.5.2 Chrominance
   6.6 Non-linear distortions
        6.6.1 Differential gain
        6.6.2 Differential gain versus frequency
        6.6.3 Differential phase
        6.6.4 Group delay
   6.7 Chrominance-luminance cross-talk/intermodulation
   6.8 Luminance signal-to-noise ratio
   6.9 Chrominance signal-to-noise ratio
        6.9.1 Measurement of PAL/NTSC colour video
               signal
        6.9.2 Measurement of SECAM colour video signals
   6.10 Field time distortions
        6.10.1 Vertical tilt
   6.11 Long time distortion
        6.11.1 Signal bounce
        6.11.2 Power supply interference
7 Special measurements
   7.1 FM characteristics frequencies
   7.2 Non-linear preemphasis
   7.3 Noise coring
   7.4 Moire
   7.5 Time base errors (Measurements before time base
        error corrector)
        7.5.1 Velocity errors
        7.5.2 Phase step
        7.5.3 Jitter
        7.5.4 Time base errors after correction
   7.6 Sc/H phase
Annexes
A (informative) Test signals elements
B (informative) 625-line systems
C (informative) 525-line systems
D (informative) Bibliography
ZA (normative) Normative references to international
               publications with their corresponding
               European publications

Describes methods of measurement, test signals and procedures for characteristics of video recording/playback equipment mainly intended for professional use. The measuring methods do not directly concern equipment for domestic use.