EN 60843-3:1993

SLOVENSKI STANDARD
01-april-1999
Helical-scan video tape cassette system using 8 mm magnetic tape - 8 mm Video --
Part 3: High-band specifications for Hi 8 (IEC 60843-3:1993)
Helical-scan video tape cassette system using 8 mm magnetic tape - 8 mm Video -- Part
3: High-band specifications for Hi 8
Video-Bandkassettensystem mit Schrägspuraufzeichnung auf Magnetband 8 mm - Video
8 -- Teil 3: Hochband-Spezifikationen für Hi 8
Système de magnétoscope à cassette à balayage hélicoïdal utilisant la bande
magnétique de 8 mm - Vidéo 8 mm -- Partie 3: Spécifications à fréquences élevées pour
Hi 8
Ta slovenski standard je istoveten z: EN 60843-3:1993
ICS:
33.160.40 Video sistemi Video systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

NORME CEI
INTERNATIONALE IEC
843-3
INTERNATIONAL
Première édition
STANDARD
First edition
1993-07
Système de magnétoscope à cassette
à balayage hélicoïdal utilisant la bande
magnétique de 8 mm - Vidéo 8 mm
Partie 3:
Spécifications à fréquences élevées pour Hi 8
Helical-scan video tape cassette system
using 8 mm magnetic tape - 8 mm Video
Part 3:
High-band specifications for Hi 8
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_ 3 _
843-3 © I EC: 1993
CONTENTS
Page
FOREWORD 5
Clause
1 General 7
1.1 Scope 7
1.2 Normative references 7
2 Definition of high-band tapes 7
2.1 Reference tape 7
2.2 Video characteristics of the high-band tape 7
3 Video tape cassette 9
3.1 Recognition holes 9
4 Recording of luminance component 11
4.1 Frequency spectrum allocation of recording signals 11
4.2 Pre-emphasis and clipping 13
4.3 Modulation characteristics 15
4.4 Recording current 15
Annexes
A 17
Characteristics of the reference tape RSE-5001
B Name and address of the manufacturer of the reference tape 19

843-3 © IEC: 1993 - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
HELICAL-SCAN VIDEO TAPE
CASSETTE SYSTEM USING 8 mm
MAGNETIC TAPE - 8 mm VIDEO
Part 3: High-band specifications for Hi 8
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization
comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to
promote international cooperation on all questions concerning standardization in the electrical and
electronic fields. To this end and in addition to other activities, the IEC publishes International Standards.
Their preparation is entrusted to technical committees; any IEC National Committee interested in
the subject dealt with may participate in this preparatory work. International, governmental and
non-governmental organizations liaising with the IEC also participate in this preparation. The IEC
collaborates closely with the International Organization for Standardization (ISO) in accordance with
conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of the IEC on technical matters, prepared by technical committees on
which all the National Committees having a special interest therein are represented, express, as nearly as
possible, an international consensus of opinion on the subjects dealt with.
3) They have the form of recommendations for international use published in the form of standards, technical
repo
rts or guides and they are accepted by the National Committees in that sense.
4)
In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
International Standard IEC 843-3 has been prepared by Sub-Committee 60B: Video
recording, of IEC Technical Committee No. 60: Recording.
The text of this standard is based on the following documents:
DIS Report on Voting
60B(CO)142 60B(CO)161
Full information on the voting for the approval of this standard can be found in the Voting
Report indicated in the above table.
Annex A forms an integral part
of this standard.
Annex B is for information only.

843-3© IEC: 1993 - 7
HELICAL-SCAN VIDEO TAPE
CASSETTE SYSTEM USING 8 mm
MAGNETIC TAPE - 8 mm VIDEO
Part 3: High-band specifications for Hi 8
1 General
1.1 Scope
This part of IEC 843 provides high-band specifications for high-quality recording and
playback with the 8 mm video system. This part is applicable to both 525 line-60 field and
625 line-50 field TV signals.
1.2
Normative references
The following normative documents contain provisions which, through reference in this
text, constitute provisions of this part of IEC 843. At the time of publication, the editions
indicated were valid. All normative documents are subject to revision, and pa rties to
agreements based on this pa rt of IEC 843 are encouraged to investigate the possibility of
applying the most recent editions of the normative documents indicated below. Members
of IEC and ISO maintain registers of currently valid International Standards.
IEC 843-1,
Helical-scan video tape cassette system
...