I.S. EN 61237-4:1998
Current
The latest, up-to-date edition.
BROADCAST VIDEO TAPE RECORDERS - METHODS OF MEASUREMENT - PART 4: ANALOGUE PERFORMANCE MEASUREMENTS
Hardcopy , PDF
English
01-01-1998
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Foreword
1 General
1.1 Scope and object
1.2 Normative references
1.3 Definitions
2 Manual and automatic measurements
3 Procedure of measurement
4 Environmental conditions
5 Measurements on analogue audio baseband recording
using bias
5.1 Reproducing performance using calibration tape
5.2 Overall performance using reference tape
6 Measurement on analogue audio recording using
frequency modulation (FM audio)
6.1 Reproducing performance using calibration tape
6.2 Overall performance using reference tape
7 Special measurements
7.1 Measurements on FM carrier (unmodulated carrier
and deviation)
7.2 Measurements on AGC (amplitude characteristic;
attack time; hold time)
7.3 Measurements on switchable noise reduction circuits
7.4 Measurements on non-switchable noise reduction
systems (in combination with a non-switchable AGC)
7.5 Polarity test
Annex A (informative) Method of measurement for magnetic
tape flux
Annex B (informative) Bibliography
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Specifies methods of measurement and special test signals for the analogue audio part of equipment mainly dedicated to recording reproduction of TV signals on magnetic tape on reels or in cassettes.
| DevelopmentNote |
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
|
| DocumentType |
Standard
|
| Pages |
70
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| NBN EN 61237-4 : 1998 | Identical |
| EN 61237-4:1997 | Identical |
| DIN EN 61237-4:1998-07 | Identical |
| IEC 61237-4:1997 | Identical |
| NF EN 61237-4 : 1998 | Identical |
| BS EN 61237-4:1998 | Identical |
| SN EN 61237-4 : 1997 | Identical |
| IEC 60268-8:1973 | Sound system equipment - Part 8: Automatic gain control devices |
| HD 483.3 : 200S2 | SOUND SYSTEM EQUIPMENT - AMPLIFIERS |
| EN 61041-3:1995 | Non-broadcast videotape recorders - Methods of measurement - Part 3: Audio characteristics for FM recording |
| IEC 60268-3:2013 | Sound system equipment - Part 3: Amplifiers |
| ANSI S4.6 : 82(R1992) | RECORDED FLUX OF MAGNETIC SOUND RECORDS AT MEDIUM WAVELENGTHS, METHOD OF MEASURING |
| IEC 61041-1:1990 | Non-broadcast video tape recorders. Methods of measurement - Part1: General, video (NTSC/PAL) and audio (longitudinal)characteristics |
| HD 574 : 1990 | TYPE B HELICAL VIDEO RECORDERS |
| AES 7 : 2000(R2005) | |
| EN 60094-3:1996/A3:1996 | MAGNETIC TAPE SOUND RECORDING AND REPRODUCING SYSTEMS - PART 3: METHODS OF MEASURING THE CHARACTERISTICS OF RECORDING AND REPRODUCING EQUIPMENT FOR SOUND ON MAGNETIC TAPE |
| EN 61105:1993 | Reference tapes for video tape recorder systems |
| 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 61213:1993 | Analogue audio recording on video tape - Polarity of magnetization |
| IEC 61041-3:1993 | Non-broadcast video tape recorders - Methods of measurement - Part 3: Audio characteristics for FM recording |
| IEC 60094-2:1994 | Magnetic tape sound recording and reproducing systems - Part 2: Calibration tapes |
| IEC 61105:1991 | Reference tapes for video tape recorder systems |
| HD 483.1 : 200S2 | SOUND SYSTEM EQUIPMENT - GENERAL |
| IEC 60268-1:1985 | Sound system equipment. Part 1: General |
| EN 61213:1994 | Analogue audio recording on video tape - Polarity of magnetization |
| IEC 60094-3:1979 | Magnetic tape sound recording and reproducing systems - Part 3: Methods of measuring the characteristics of recording and reproducing equipment for sound on magnetic tape |
| EN 60651:1994/A2:2001 | SOUND LEVEL METERS (IEC 60651:1979/A2:2000) |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
| DIN 45520:1973-01 | MAGNETIC TAPE RECORDERS - MEASUREMENT OF THE ABSOLUTE LEVEL OF THE MAGNETIC FLUX AND ITS FREQUENCY RESPONSE ON MAGNETIC TAPES |
| HD 483.2 : 200S2 | SOUND SYSTEM EQUIPMENT - EXPLANATION OF GENERAL TERMS AND CALCULATION METHODS |
| EN 61260:1995/A1:2001 | ELECTROACOUSTICS - OCTAVE-BAND AND FRACTIONAL-OCTAVE-BAND FILTERS |
| IEC 60651:1979+AMD1:1993+AMD2:2000 CSV | Sound level meters |
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