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EN 61237-2:1995

Current

Current

The latest, up-to-date edition.

Broadcast video tape recorders - Methods of measurement - Part 2: Electrical measurements of analogue composite video signals

Published date

06-14-1995

Foreword
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 K[2T] 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
               signals
        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
Annex A (informative) Test signals elements
Annex B (informative) 625-line systems
Annex C (informative) 525-line systems
Annex D (informative) Bibliography
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Describes the methods of measurement, test signals and procedures which may apply to characteristics of video recording/playback machines mainly intended for professional use.

Committee
CLC/TC 100X
DevelopmentNote
Supersedes HD 439 (05/2001)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current

Standards Relationship
NBN EN 61237-2 : 1996 Identical
IEC 61237-2:1995 Identical
I.S. EN 61237-2:1998 Identical
BS EN 61237-2:1995 Identical
DIN EN 61237-2:1996-04 Identical
PN EN 61237-2 : 2002 Identical
CEI EN 61237-2 : 1998 Identical
SN EN 61237-2 : 1995 Identical
NEN 11237-2 : 1995 Identical
NF EN 61237-2 : 1995 Identical
UNE-EN 61237-2:1997 Identical

IEC 60883:1987 Measuring method for chrominance signal-to-random noise ratio for video tape recorders
IEC 60756:1991 Non-broadcast video tape recorders - Time base stability
IEC 61041-1:1990 Non-broadcast video tape recorders. Methods of measurement - Part1: General, video (NTSC/PAL) and audio (longitudinal)characteristics
EN 60756:1993 Non-broadcast video tape recorders - Time base stability
EN 61041-1 : 1995 Non-broadcast video tape recorders - Methods of measurement - Part 1: General video (NTSC/PAL) and audio (longitudinal) characteristics
IEC TR 61295:1994 Calibration tapes for broadcast VTRs
IEC 61105:1991 Reference tapes for video tape recorder systems
IEC 60244-10:1986 Methods of measurement for radio transmitters. Part 10: Methods of measurement for television transmitters and transposers employing insertion test signals
EN 60244-10:1993 Methods of measurement for radio transmitters - Part 10: Methods of measurement for television transmitters and transposers employing insertion test signals
HD 527 : 200S1 MEASURING METHOD FOR CHROMINANCE SIGNAL-TO-RANDOM NOISE RATIO FOR VIDEO TAPE RECORDERS
IEC 61041-2:1994 Non-broadcast video tape recorders - Methods of measurements - Part2: Video characteristics chrominance SECAM

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