SIST EN 60835-3-14:2002
(Main)Methods of measurement for equipment used in digital microwave radio transmission systems -- Part 3: Measurements on satellite earth stations -- Section 14: Earth stations for satellite news gathering (SNG)
- Abstract
Deals with measurement methods applicable to satellite news gathering (SNG) terminals.
- Status
- Published
- Publication Date
- 30-Sep-2002
- Technical Committee
- OMS - Equipment used in mobile services and satelite comunication systems
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Oct-2002
- Due Date
- 01-Oct-2002
- Completion Date
- 01-Oct-2002
SIST EN 60835-3-14:2002 is a measurement-method standard for satellite news gathering (SNG) terminals used in digital microwave radio transmission systems. It tells engineers and testers how to check antenna, radio-frequency, baseband, and power-supply performance so an SNG terminal can be set up and verified in the field.
What does SIST EN 60835-3-14:2002 specify?
SIST EN 60835-3-14:2002 specifies measurement methods applicable to SNG terminals. In practice, it is the test companion for portable or vehicle-mounted satellite uplink equipment used to originate news and live-programme signals.
The document is organized into six clauses:
- Clause 1 - Scope
- Clause 2 - Normative references
- Clause 3 - Definition
- Clause 4 - General considerations
- Clause 5 - Methods of measurement
- Clause 6 - Reference documents
Clause 5 is the main technical part. It groups the methods into antenna and r.f. parameters, baseband parameters, and power supply system checks, which makes it easier to find the test you need during installation, acceptance, or maintenance.
What are the key requirements of SIST EN 60835-3-14:2002?
SIST EN 60835-3-14:2002 focuses on proving that an SNG terminal is correctly aligned, transmitting within limits, and operating safely. The most important checks are the ones that affect whether the terminal can deliver a usable uplink and stable programme signal.
Antenna and r.f. parameters
Clause 5.1 covers antenna gain, radiation pattern, and cross-polarization discrimination by reference to the antenna methods in IEC 835-3-2. It also notes that the antenna performance should be confirmed again after disassembly and reassembly, which matters because SNG antennas are often repeatedly assembled on site.
Clause 5.1.2 describes antenna alignment by maximizing the received test signal from the cooperating earth station and confirming the correct satellite by signal identification. It also uses cross-polarization discrimination as a check on azimuth, elevation, and polarization setting, so the reader knows the antenna is pointed and polarized correctly before a live transmission.
Clause 5.1.3 and 5.1.4 require measurement of carrier frequency and r.f. output power. The carrier frequency is checked with modulation switched off, and power is measured with suitable instruments at the output, which helps verify that the uplink is on frequency and delivering the intended power level.
Clause 5.1.5 covers the r.f. output spectrum, and Clause 5.1.6 covers radiation hazards by measuring power flux density around the installation. In practice, these checks show whether emissions stay within the allowed spectrum and whether accessible areas are safe for operators and the public.
Clause 5.1.7 and 5.1.8 point to off-axis EIRP density and the G/T of the monitoring system. These measurements are used to assess unwanted radiation and whether the monitoring path is good enough to judge the quality of the uplinked picture and sound.
Baseband parameters
Clause 5.2 covers the interface parameters of the sound/vision equipment and the control functions for antenna alignment, polarization, carrier power, carrier frequency, and transmitter on/off. That means the reader should verify that the terminal controls work as intended, whether they are manual on a basic flyaway system or remotely operated on a vehicle system.
Clause 5.2.3 and 5.2.4 use transmitter/receiver loop tests for video, sound, and duplex sound communication channels. This lets users test programme quality and voice coordination without depending on the full satellite path.
Power supply system
Clause 5.3 checks the power supply system under specified input voltage and frequency variations. The point is to confirm that the terminal still meets performance needs, including output power, spurious signals, and transmit frequency, when the supply is less than ideal.
What terms does SIST EN 60835-3-14:2002 define?
- Satellite news gathering (SNG) - A portable satellite uplink system used at a news event site to send local video and associated sound, with monitoring and two-way voice communication.
- Fixed satellite service (FSS) - The satellite service in which SNG terminals operate in this document.
- Quadrature phase shift keying (QPSK) - The digital modulation method shown for the typical SNG terminal in Clause 4.
- High-power amplifier (HPA) - The amplifier that raises the transmit signal before it is sent through the output chain.
- Radio frequency (r.f.) - The signal domain used at the antenna and uplink/downlink interfaces.
- Intermediate frequency (i.f.) - The lower-frequency signal stage used inside the terminal before final conversion.
- Equivalent isotropically radiated power (EIRP) - A measure used here for off-axis radiation density in the satellite link context.
Who uses SIST EN 60835-3-14:2002?
SIST EN 60835-3-14:2002 is used by engineers, test laboratories, and service teams working with SNG terminals and other satellite earth-station equipment. It is also useful for broadcasters, news organizations, system integrators, and quality or procurement staff who need a clear acceptance test basis for flyaway and vehicle SNG systems.
In practice, they use it for antenna alignment, frequency and power checks, spectrum verification, safety checks, loop testing of audio and video paths, and power-supply checks.
Which standards are used with SIST EN 60835-3-14:2002?
Clause 2 names the normative references, and Clause 6 lists related reference documents that support the methods.
| Reference | What it contributes |
|---|---|
| IEC 835-1-2:1992 | Basic characteristics and related measurements used here for carrier frequency, output power, spectrum, and interface parameters |
| IEC 835-3-7:1995 | Figure-of-merit of receiving system, used for the G/T of the monitoring system |
| IEC/DIS 835-3-2 | Antenna measurement methods, cited for antenna performance |
| IEC/DIS 835-3-13 | Methods for off-axis EIRP density |
| ITU-R Recommendation SNG 770:1994 | Uniform operational and control procedures for SNG |
| ITU-R Recommendation SNG 771-1:1994 | Auxiliary coordination satellite circuits for SNG terminals |
| ITU-R Recommendation SNG 722-1:1994 | Uniform technical standards for analogue SNG |
What does the SIST EN 60835-3-14:2002 document contain?
The document contains a foreword, a definition of SNG, general operating considerations, and the main measurement methods in Clause 5. It also includes a typical SNG network example and a simplified block diagram of an SNG terminal, which help the reader place each measurement point in the signal chain.
The measurement methods show where to connect instruments such as a spectrum analyzer, counter, power meter, and hazard meter. They also describe loop testing for video, sound, and duplex communication channels, so the document supports practical field testing and acceptance work rather than abstract theory.
Relations
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
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Frequently Asked Questions
SIST EN 60835-3-14:2002 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Methods of measurement for equipment used in digital microwave radio transmission systems -- Part 3: Measurements on satellite earth stations -- Section 14: Earth stations for satellite news gathering (SNG)". This standard covers: Deals with measurement methods applicable to satellite news gathering (SNG) terminals.
Deals with measurement methods applicable to satellite news gathering (SNG) terminals.
SIST EN 60835-3-14:2002 is classified under the following ICS (International Classification for Standards) categories: 33.060.30 - Radio relay and fixed satellite communications systems. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 60835-3-14:2002 has the following relationships with other standards: It is inter standard links to SIST EN 60835-3-2:2002, SIST EN 60835-3-13:2002, SIST EN 60835-1-2:2002, SIST EN 60835-3-7:2002. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 60835-3-14:2002 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2002
Methods of measurement for equipment used in digital microwave radio
transmission systems - Part 3: Measurements on satellite earth stations - Section
14: Earth stations for satellite news gathering (SNG) (IEC 60835-3-14:1996)
Methods of measurement for equipment used in digital microwave radio transmission
systems -- Part 3: Measurements on satellite earth stations -- Section 14: Earth stations
for satellite news gathering (SNG)
Meßverfahren für Geräte in digitalen Mikrowellen-Funkübertragungssystemen -- Teil 3:
Messungen an Satelliten-Erdfunkstellen -- Hauptabschnitt 14: Erdfunkstellen für
Reportagen über Satellit (SNG)
Méthodes de mesure applicables au matériel utilisé pour les systèmes de transmission
numérique en hyperfréquence -- Partie 3: Mesures applicables aux stations terriennes de
télécommunications par satellite -- Section 14: Stations terriennes pour le reportage
d'actualités par satellite (RAS)
Ta slovenski standard je istoveten z: EN 60835-3-14:1996
ICS:
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
NORME CEI
INTERNATIONALE IEC
INTERNATIONAL 60835-3-14
Première édition
STAN DARD
First edition
1996-03
Méthodes de mesure applicables au matériel
utilisé pour les systèmes de transmission
numérique en hyperfréquence
Partie 3:
Mesures applicables aux stations terriennes
de télécommunications par satellite
Section 14: Stations terriennes pour le
reportage d'actualités par satellite (RAS)
Methods of measurement for equipment used in
digital microwave radio transmission systems
Part 3:
Measurements on satellite earth stations
Section 14: Earth stations for satellite news
gathering (SNG)
© IEC 1996 Droits de reproduction réservés Copyright - all rights reserved
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procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de
l'éditeur. writing from the publisher.
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Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http: //www.iec.ch
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835-3-14 © IEC:1996 – 3 –
CONTENTS
Page
FOREWORD 5
Clause
1 Scope 7
2 Normative references 7
3 Definition 9
4 General considerations 9
5 Methods of measurement 11
5.1 Antenna and ri parameters 11
5.2 Baseband parameters 15
5.3 Power supply system 17
6 Reference documents 17
835-3-14 © IEC:1996 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
METHODS OF MEASUREMENT FOR EQUIPMENT
USED IN DIGITAL MICROWAVE RADIO TRANSMISSION SYSTEMS -
Part 3: Measurements on satellite earth stations -
Section 14: Earth stations for satellite news gathering (SNG)
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, express as nearly as possible an
international consensus of opinion on the relevant subjects since each technical committee has
representation from all interested National Committees.
3)
The documents produced have the form of recommendations for international use and are published in the
form of standards, technical reports 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.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the
subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 835-3-14 has been prepared by sub-committee 12E: Radio
relay and satellite communication systems, of IEC technical committee 12: Radio-
communications.
The text of this standard is based on the following documents:
FDIS Report on voting
12E/259/FDIS
12E/266/RVD
Full information on the voting for the approval of this standard can be found in the repo
rt
on voting indicated in the above table.
835-3-14 ©
IEC:1996 - 7 -
METHODS OF MEASUREMENT FOR EQUIPMENT
USED IN DIGITAL MICROWAVE RADIO TRANSMISSION SYSTEMS —
Part 3: Measurements on satellite earth stations —
Section 14: Earth stations for satellite news gathering (SNG)
1 Scope
This section of IEC 835-3 deals with measurement methods applicable to satellite news
gathering (SNG) terminals.
2 Normative references
The following normative documents contain provisions which, through reference in
this text, constitute provisions of this section of IEC 835-3. At the time of publication,
the editions indicated were valid. All normative documents are subject to revision, and
parties to agreements based on this section of IEC 835-3 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 835-1-2: 1992, Methods of measurement for equipment used in digital microwave
radio transmission systems - Part 1: Measurements common to terrestrial radio-relay
systems and satellite earth stations - Section 2: Basic characteristics
IEC 835-3-7: 1995, Methods of measurement for equipment used in digital microwave
radio transmission systems - Part 3: Measurements on satellite earth stations - Section 7:
Figure-of-merit of receiving system
IEC/DIS 835-3-2: Methods of measurement for equipment used in digital microwave radio
transmission systems - Pa 3: Measurements on satellite earth stations - Section 2:
rt
1)
Antenna
IEC/DIS 835-3-13: Methods of measurement for equipment used in digital microwave radio
transmission systems - Part 3: Measurements on satellite earth stations - Section 13:
VSAT systems 1)
1) IEC/DIS 835-3-2 and IEC/DIS 835-3-13 are currently at the stage of final Draft International Standard
12/247/FDIS and 12E(CO)166 respectively.
835-3-14 ©
IEC:1996 – 9 –
3 Definition
For the purpose of this section of IEC 835-3, the following definition applies.
satellite news gathering (SNG): A highly po rt
able news-gathering satellite uplink system
of small size and weight operating in the fixed satellite se rvice (FSS), transported to the
site of a news event, with the purpose of uplinking a local video programme with its
associated sound programme. In addition to this main function, monitoring facilities are
normally provided to assess the main quality parameters of the uplinked picture and sound
signals. A two-way communication channel is available for voice communication between
the SNG terminal and the earth station receiving the uplinked signals.
4 General considerations
A typical example for a satellite network including an SNG terminal is shown in figure 1,
depicting the signal paths linking the satellite earth station, the SNG terminal, and
the receive-only earth stations feeding TV broadcast transmitters, cable TV (CATV)
networks, etc. Two kinds of SNG terminals may be used depending on the application
field. A flyaway SNG system is accommodated in several boxes suitable for delivery in an
aircraft while a vehicle SNG system includes, in addition to the items of a flyaway system,
more comprehensive communications, monitoring, and power supply facilities. An SNG
vehicle is used for the origination of TV broadcast material from locations which cannot be
served by terrestrial means, but which are conveniently accessible by the vehicle.
A typical block diagram of an SNG terminal using digital modulation is shown in figure 2.
According to this diagram, the video signal plus left and right components of the accompa-
nying stereo sound signal are fed to a video/sound encoder, and the composite digital
signal thus generated is used to modulate a quadrature phase shift keying (QPSK)
modulator. This modulated signal is up-converted to the UHF band by using a synthesized
oscillator, which is tuneable for selecting the appropriate satellite transponder channel.
The UHF band signal is again up-converted by a single-frequency oscillator and a broad-
band converter covering the relevant transponder band. In the example shown, this signal
is amplified by a high-power amplifier feeding, via a coupler and a switch, the transmit
bandpass filter. The low-level po rt of the coupler can be connected to an external counter
or spectrum analyzer for carrying out frequency or
...