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BS EN 61237-2:1995

Current

Current

The latest, up-to-date edition.

Broadcast video tape recorders. Methods of measurement Electrical measurements of analogue composite video signals

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

12-15-1995

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.

Committee
EPL/100
DevelopmentNote
Also numbered as IEC 61237-2 Supersedes BS 6311(1982) and 92/26134 DC (11/2005)
DocumentType
Standard
Pages
68
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
UNE-EN 61237-2:1997 Identical
NBN EN 61237-2 : 1996 Identical
I.S. EN 61237-2:1998 Identical
DIN EN 61237-2:1996-04 Identical
EN 61237-2:1995 Identical
NF EN 61237-2 : 1995 Identical
SN EN 61237-2 : 1995 Identical

IEC 60883:1987 Measuring method for chrominance signal-to-random noise ratio for video tape recorders
BS EN 60756:1993 Non-broadcast video tape recorders. Time base stability
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
BS 7595:1992 Measuring method for chrominance signal-to-random noise ratio for video tape recorders
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
BS EN 61041-1:1995 Non-broadcast video tape recorders. Methods of measurement General video (NTSC/PAL) and audio (longitudinal) characteristics
IEC 61041-2:1994 Non-broadcast video tape recorders - Methods of measurements - Part2: Video characteristics chrominance SECAM
BS EN 60244-10:1993 Methods of measurement for radio transmitters Methods of measurement for television transmitters and transposers employing insertion test signals

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