SIST TBR 043 E1:2004
(Main)Satellite Earth Stations and Systems (SES); Very Small Aperture Terminal (VSAT) transmit-only, transmit-and-receive, receive-only satellite earth stations operating in the 4 GHz and 6 GHz frequency bands
Satellite Earth Stations and Systems (SES); Very Small Aperture Terminal (VSAT) transmit-only, transmit-and-receive, receive-only satellite earth stations operating in the 4 GHz and 6 GHz frequency bands
This TBR specifies those technical requirements under Articles 4.1 to 4.5 of Council Directive 93/97/EEC that apply to satellite earth station equipment that is capable of operation in the following frequency ranges: - 3,625 to 4,200 GHz (Space to Earth, shared); - 5,850 to 6,425 GHz (Earth to Space, shared); of the Fixed Satellite Service (FSS). These requirements are taken from: - ETS 300 332; - ETS 300 333; - ETS 300 160. This TBR does not contain the essential requirements under Article 4.6 for interworking via the public telecommunications network in justified cases, and does not provide any guarantee of correct interworking between satellite earth station equipment. This TBR specifies the requirements for satellite earth station equipment that: - is capable of being used either for transmission only, or for transmission and reception (transmit-receive), or for reception only (receive-only), of radio-communications signals in any of the bands specified above, and - has a diameter of 7,3 m or less; - is not intended for use as part of the public telecommunications network. This TBR applies to all satellite equipment as described above, irrespective of whether the satellite earth station equipment provides additional interfaces, telecommunications services or functions. However additional TBRs may also apply.
Satelitske zemeljske postaje in sistemi (SES) - Satelitske zemeljske postaje s terminali z zelo majhno antensko odprtino (VSAT) samo za oddajanje, za oddajanje in sprejemanje ali samo za sprejemanje, ki delujejo v frekvenčnih pasovih 4 GHz in 6 GHz
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
3SIST TBR 043 E1:
01-oktober-
6DWHOLWVNH]HPHOMVNHSRVWDMHLQVLVWHPL 6(6 6DWHOLWVNH]HPHOMVNHSRVWDMHV
WHUPLQDOL]]HORPDMKQRDQWHQVNRRGSUWLQR 96$7 VDPR]DRGGDMDQMH]DRGGDMDQMH
LQVSUHMHPDQMHDOLVDPR]DVSUHMHPDQMHNLGHOXMHMRYIUHNYHQþQLKSDVRYLK*+]LQ
*+]
Satellite Earth Stations and Systems (SES); Very Small Aperture Terminal (VSAT)
transmit-only, transmit-and-receive, receive-only satellite earth stations operating in the 4
GHz and 6 GHz frequency bands
Ta slovenski standard je istoveten z: TBR 043 E1
ICS:
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
3SIST TBR 043 E1: en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST TBR 043 E1:2004
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SIST TBR 043 E1:2004
TECHNICAL TBR 43
BASIS for May 1998
REGULATION
Source: SES Reference: DTBR/SES-00021
ICS: 33.020
Key words: Satellite, earth station, VSAT, type approval
Satellite Earth Stations and Systems (SES);
Very Small Aperture Terminal (VSAT)
transmit-only, transmit-and-receive, receive-only
satellite earth stations operating in the
4 GHz and 6 GHz frequency bands
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Internet: secretariat@etsi.fr - http://www.etsi.fr - http://www.etsi.org
Tel.: +33 4 92 94 42 00 - Fax: +33 4 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1998. All rights reserved.
---------------------- Page: 3 ----------------------
SIST TBR 043 E1:2004
Page 2
TBR 43: May 1998
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.
---------------------- Page: 4 ----------------------
SIST TBR 043 E1:2004
Page 3
TBR 43: May 1998
Contents
Foreword .7
Introduction.7
1 Scope .9
2 Normative references.10
3 Definitions and abbreviations .10
3.1 Definitions .10
3.2 Abbreviations .12
4 Requirements.12
4.1 Off-axis spurious radiation.12
4.1.1 Justification.12
4.1.2 Specification .13
4.1.2.1 Transmit VSAT .13
4.1.2.2 Receive-only VSAT.14
4.1.3 Conformance test.14
4.2 On-axis spurious radiation for transmit VSAT .14
4.2.1 Justification.14
4.2.2 Specification .14
4.2.2.1 Specification 1: Carrier-on state .14
4.2.2.2 Specification 2: Carrier-off state and transmission
disabled state.15
4.2.3 Conformance test.15
4.3 Off-axis EIRP emission density (co-polar and cross-polar) within the band 5,850 GHz
to 6,650 GHz.15
4.3.1 Justification.15
4.3.2 Specification .15
4.3.3 Conformance test.16
4.4 Transmit polarization discrimination (linear) or voltage axial ratio (circular).16
4.4.1 Justification.16
4.4.2 Specification .16
4.4.2.1 Specification 1 .16
4.4.2.2 Specification 2 .16
4.4.3 Conformance test.16
4.5 Carrier suppression .16
4.5.1 Justification.16
4.5.2 Specification .16
4.5.3 Conformance test.17
4.6 ElectroMagnetic Compatibility (EMC) .17
4.7 Mechanical (antenna pointing) for transmit VSAT .17
4.7.1 Justification.17
4.7.2 Specification .17
4.7.3 Conformance test.17
4.8 Control and monitoring for transmit VSAT.17
4.8.1 General.17
4.8.1.1 Control and Monitoring Functions (CMF) .18
4.8.1.2 Specification of states.19
4.8.2 Control Channels (CC).19
4.8.2.1 Justification.19
4.8.2.2 Specification .20
4.8.2.3 Conformance test .20
4.8.3 Self monitoring functions.20
4.8.3.1 Processor monitoring.21
4.8.3.1.1 Justification .21
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4.8.3.1.2 Specification. 21
4.8.3.1.3 Conformance test. 21
4.8.3.2 Transmit subsystem monitoring. 21
4.8.3.2.1 Justification . 21
4.8.3.2.2 Specification. 21
4.8.3.2.3 Conformance test. 21
4.8.3.3 VSAT transmission validation . 21
4.8.3.3.1 VSAT transmission validation by the
CCMF. 21
4.8.3.3.1.1 Justification . 21
4.8.3.3.1.2 Specification. 22
4.8.3.3.1.3 Conformance test. 22
4.8.3.3.2 VSAT transmission validation by
receiving station(s) . 22
4.8.3.3.2.1 Justification . 22
4.8.3.3.2.2 Specification. 22
4.8.3.3.2.3 Conformance test. 22
4.8.3.3.3 Transmission validation for VSAT
using external CC(s) . 22
4.8.3.3.3.1 Purpose. 22
4.8.3.3.3.2 Specification. 22
4.8.3.3.3.3 Conformance test. 22
4.8.4 Reception of commands from the CCMF. 22
4.8.4.1 Disable message . 23
4.8.4.1.1 Justification . 23
4.8.4.1.2 Specification. 23
4.8.4.1.3 Conformance test. 23
4.8.4.2 Enable message . 23
4.8.4.2.1 Justification . 23
4.8.4.2.2 Specification. 23
4.8.4.2.3 Conformance test. 23
4.8.5 Power-on/Reset . 23
4.8.5.1 Justification . 23
4.8.5.2 Specification. 23
4.8.5.3 Conformance test. 23
5 Test methods. 24
5.1 Off-axis spurious radiation . 24
5.1.1 Test method. 25
5.1.1.1 Up to 1 000 MHz . 25
5.1.1.1.1 Test site. 25
5.1.1.1.2 Measuring receivers. 25
5.1.1.1.3 Procedure. 26
5.1.1.2 Above 1 000 MHz. 26
5.1.1.2.1 Identification of the significant
frequencies of spurious radiation . 26
5.1.1.2.1.1 Test site. 26
5.1.1.2.1.2 Procedure. 26
5.1.1.2.2 Measurement of radiated power levels
of identified spurious radiation . 27
5.1.1.2.2.1 Test site. 27
5.1.1.2.2.2 Procedure. 27
5.1.1.2.3 Measurement of conducted spurious
radiation at the antenna flange. 28
5.1.1.2.3.1 Test site. 28
5.1.1.2.3.2 Procedure. 28
5.2 On-axis spurious radiation for transmit VSAT. 29
5.2.1 Test method. 29
5.2.1.1 Test site . 29
5.2.1.2 Method of measurement. 29
5.2.1.2.1 General. 29
5.2.1.2.2 Method of measurement at the
antenna flange. 29
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TBR 43: May 1998
5.2.1.2.3 Method of measurement with a test
antenna.30
5.3 Off-axis EIRP emission density within the band .31
5.3.1 Test method .31
5.3.1.1 Transmit output power density.31
5.3.1.1.1 Test site .31
5.3.1.1.2 Method of measurement.31
5.3.1.2 Antenna transmit gain.32
5.3.1.2.1 General .32
5.3.1.2.2 Test site .32
5.3.1.2.3 Method of measurement.32
5.3.1.3 Antenna transmit radiation patterns.33
5.3.1.3.1 General .33
5.3.1.3.2 Test site .33
5.3.1.3.3 Method of measurement.33
5.3.1.3.4 Co-polar radiation pattern - azimuth .34
5.3.1.3.5 Co-polar radiation pattern - elevation.34
5.3.1.3.6 Cross-polar radiation pattern - azimuth 35
5.3.1.3.7 Cross-polar radiation pattern -
elevation.35
5.3.2 Computation of results .36
5.4 Transmit polarization discrimination (linear) or voltage axial ratio (circular).36
5.4.1 General.36
5.4.2 Test method .36
5.4.2.1 Method of measurement.36
5.5 Carrier suppression .38
5.5.1 Test method .38
5.6 Antenna pointing for transmit VSAT .38
5.6.1 Test method .38
5.7 Control and monitoring for transmit VSAT.39
5.7.1 Test arrangement.39
5.7.2 Control channels .40
5.7.2.1 Test method.40
5.7.2.1.1 Test method for internal CC(s) .40
5.7.2.1.2 Test method for external CC(s) .40
5.7.3 Processor monitoring .41
5.7.3.1 Test method.41
5.7.4 Transmit subsystem monitoring .41
5.7.4.1 Test method.41
5.7.5 VSAT transmission validation.41
5.7.5.1 Test method for VSAT validation by the CCMF for VSAT
using internal CC(s).41
5.7.5.2 Test method for VSAT validation by receiving station(s)
for VSAT using internal CC(s) .41
5.7.5.3 Test method for transmission validation for VSAT using
external CC(s) .41
5.7.6 Reception of commands from the CCMF.42
5.7.6.1 Test method.42
5.7.7 Power-on/Reset.42
5.7.7.1 Test method.42
6. Test methods for modified VSAT .42
6.1 Antenna subsystem replacement .43
Annex A (normative): The TBR Requirements Table (TBR-RT).44
Annex B (informative): Pointing stability methodology .45
Annex C (informative): Bibliography.46
History.47
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Foreword
This Technical Basis for Regulation (TBR) has been produced by the Satellite Earth Stations and Systems
(SES) Technical Committee of the European Telecommunications Standards Institute (ETSI).
The present document has been produced by ETSI in response to a mandate from the European
Commission issued under Council Directive 83/189/EEC (as amended) laying down a procedure for the
provision of information in the field of technical standards and regulations.
The present document is intended to become a Harmonized Standard, the reference of which will be
published in the Official Journal of the European Communities referencing the Council Directive
93/97/EEC of 29 October 1993 supplementing Directive 91/263/EEC in respect of satellite earth station
equipment (the "SES Directive").
A common technical regulation may be established by the European Commission in accordance with the
Directive.
Introduction
The Satellite Earth Station (SES) Directive [1] which supplements the Telecommunications Terminal
Equipment (TTE) Directive [2] concerns the harmonisation of conditions for the placing on the market of
such equipment.
Two classes of standard are applicable to SES equipment. European Telecommunication Standards
(ETS) give the full technical specifications for this equipment, whereas Technical Bases for Regulation
(TBR) give the essential requirements under the SES Directive [1] and the TTE Directive [2] for placing
such equipment on the market. Receive-only equipment, not intended for terrestrial connection to the
public telecommunications network, may be put into use. Nothing in this TBR is construed to prevent the
use of Community internal production control procedures as set out in the annexes to the two Directives
for such receive-only equipment. This TBR is based on ETS 300 332, ETS 300 333, ETS 300 160 and
ETS 300 456 (see annex C, Bibliography).
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TBR 43: May 1998
1 Scope
This Technical Basis for Regulation (TBR) specifies the technical requirements that apply to Very Small
Aperture Terminal (VSAT) for compliance with Articles 4.1 and 4.3 of the SES Directive [1].
The VSAT has the following characteristics:
- the VSAT is operating in the following bands allocated to the Fixed Satellite Service (FSS), shared
with other services, e.g. the Fixed Service (FS) and the Mobile Service (MS):
- 5,85 GHz to 6,65 GHz (earth-to-space);
- 3,40 GHz to 4,20 GHz (space-to-earth);
- the VSAT uses linear or circular polarization;
- the VSAT operates through a geostationary satellite at least 3° away from any other geostationary
satellite operating in the same frequency band and covering the same area;
- the VSAT antenna diameter does not exceed 7,3 m, or equivalent effective area;
- the VSAT is either:
- transmit-only VSAT: designed for transmission-only of radio-communications signals in the
frequency band specified above; or
- transmit-and-receive VSAT: designed for transmission-and-reception of radio-
communications signals in the frequency band specified above; or
- receive-only VSAT: designed for reception-only of radio-communications signals in the
frequency band specified above;
- the VSAT is designed usually for unattended operation;
- the VSAT is operating as part of a satellite network (e.g. star, mesh or point-to-point) used for the
distribution and/or exchange of information between users;
- the transmit-only and transmit-and-receive VSAT is controlled and monitored by a Centralized
Control and Monitoring Function (CCMF). The CCMF is outside the scope of this TBR.
This TBR applies to the VSAT (including its ancillary equipment and its various terrestrial ports) operated
under the conditions which are within the ranges of humidity, temperature and supply voltage declared by
the manufacturer.
The requirements have been selected to ensure an adequate level of compatibility with other radio
services. The levels, however, do not cover extreme cases which may occur in any location but with a low
probability of occurrence.
This TBR may not cover those cases where a potential source of interference which is producing
individually repeated transient phenomena or a continuous phenomenon is present, e.g. a radar or
broadcast site in the near vicinity. In such a case it may be necessary to use special protection applied to
either the source of interference, or the interfered part or both.
This TBR does not contain any requirement, recommendation or information about the installation of the
VSAT.
Compliance of a VSAT to the requirements of this TBR does not imply compliance to any requirement
related to the use of the VSAT (e.g. licensing requirements).
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2 Normative references
This TBR incorporates by dated or undated reference, provisions from other publications. These
references are cited at the appropriate places in the text and the publications are listed hereafter. For
dated references, subsequent amendments to, or revisions of any of these publications apply to this TBR
only when incorporated into it by amendment or revision. For undated references the latest edition of the
publication referred to applies.
[1] SES Directive: "Council Directive 93/97/EEC (1993) supplementing Directive
91/263/EEC in respect of satellite earth station equipment".
[2] TTE Directive: "Council Directive 91/263/EEC (1991) on the approximation of
the laws of Member States concerning telecommunications terminal equipment,
including the mutual recognition of their conformity".
[3] ETS 300 673 (1996): "Radio Equipment and Systems (RES); ElectroMagnetic
Compatibility (EMC) standard for 4/6 GHz and 11/12/14 GHz Very Small
Aperture Terminal (VSAT) equipment and 11/12/13/14 GHz Satellite News
Gathering (SNG) Transportable Earth Station (TES) equipment".
[4] CISPR N 16-1 (1993): "Specification for radio interference measuring apparatus
and measurements methods; Part 1: Radio disturbance and immunity
measuring apparatus" (Annex G: Validation of the open area test site for the
frequency range of 30 MHz to 1 000 MHz).
NOTE: This TBR also contains a number of informative references which have been included
to indicate the sources from which various material has been derived, hence they do
not have an associated normative reference number. Details of these publications are
given in annex C (Bibliography).
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this TBR, the following definitions apply:
ancillary equipment: Equipment used in connection with the VSAT is considered ancillary if the three
following conditions are met:
a) the equipment is intended for use in conjunction with the VSAT to provide additional operational
and/or control features (e.g. to extend control to another position or location); and
b) the equipment cannot be used on a stand alone basis, to provide user functions independently of
the VSAT; and
c) the absence of the equipment does not inhibit the operation of the VSAT.
carrier-off state: A VSAT is in this state when it is authorized by the Centralized Control and Monitoring
Functions (CCMF) to transmit, but when it does not transmit any signal.
NOTE 1: The existence of a carrier-off state depends on the system of transmission used. For
VSAT designed for continuous transmission mode there may be no carrier-off state.
carrier-on state: A VSAT is in this state when it is authorized by the CCMF to transmit and when it
transmits a signal.
Centralized Control and Monitoring Functions (CCMF): A set of functional entities that, at system
level, monitor and control the correct operation of all transmit VSAT in a network.
Control Channel (CC): A channel or channels by which VSAT receive control information from the
CCMF.
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TBR 43: May 1998
Cross-Polarization Discrimination (XPD): The ratio of the on-axis co-polar gain to the cross-polar gain
in a given direction, at a transmit or receive frequency.
external Control Channel (CC): A control channel which is either (i) carried by the VSAT network via the
same or another satellite, but not within the internal protocol of the VSAT system, or (ii) carried by the
PSTN or some other means.
external Response Channel (RC): A response channel which is either (i) carried by the VSAT network
via the same or another satellite, but not within the internal protocol of the VSAT system, or (ii) carried by
the PSTN or some other means.
indoor unit: Is composed of that part of the VSAT which is not part of the outdoor unit. It is generally
installed inside a building and is connected to the outdoor unit. The connection cable between the outdoor
and indoor unit is considered part of the indoor unit.
internal Control Channel (CC): A control channel which is carried by the VSAT network via the same
satellite as used for transmission of user data and within the internal protocol of the VSAT system.
internal Response Channel (RC): A response channel which is carried by the VSAT network via the
same satellite as used for transmission of user data and within the internal protocol of the VSAT system.
manufacturer: The legal entity responsible under the terms of the Council Directive 93/97/EEC [1] for
placing the product on the market in a member state.
network: In this TBR a network is any network configuration including star, mesh and point-to-point
configurations.
nominated bandwidth: The bandwidth of the VSAT radio frequency transmission is nominated by the
manufacturer. The nominated bandwidth is centred on the transmit frequency and does not exceed
5 times the occupied bandwidth.
NOTE 2: The nominated bandwidth is wide enough to encompass all spectral elements of the
transmission which have a level greater than the specified spurious radiation limits.
The nominated bandwidth is wide enough to take account of the transmit carrier
frequency stability. This definition is chosen to allow flexibility regarding adjacent
channel interference levels which will be taken into account by operational procedures
depending on the exact transponder carrier assignment situation.
occupied Bandwidth (Bo): For a digital modulation scheme - the width of the signal spectrum 10 dB
below the maximum in-band density. For an analogue modulation scheme - the width of a frequency band
such that, below the lower and above the upper frequency limits, the mean power emitted is equal to
0,5 % of the total mean power of the emission.
outdoor unit: The part of the VSAT intended to be installed outdoor, as declared by the manufacturer, or
as indicated in the user documentation.
The outdoor unit usually comprises three main parts:
a) the antenna sub-system which converts the incident radiation field into a guided wave and
vice versa;
b) the Low Noise Block (LNB) down-converter, which is a device that amplifies, with very low internal
noise, the received signals in the Radio Frequency (RF) band and converts them to intermediate
frequencies;
c) the up-converter and the power amplifier which convert from the intermediate frequency to RF and
...
SLOVENSKI STANDARD
SIST TBR 043 E1:2004
01-oktober-2004
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WHUPLQDOL]]HORPDMKQRDQWHQVNRRGSUWLQR 96$7 VDPR]DRGGDMDQMH]DRGGDMDQMH
LQVSUHMHPDQMHDOLVDPR]DVSUHMHPDQMHNLGHOXMHMRYIUHNYHQþQLKSDVRYLK*+]LQ
*+]
Satellite Earth Stations and Systems (SES); Very Small Aperture Terminal (VSAT)
transmit-only, transmit-and-receive, receive-only satellite earth stations operating in the 4
GHz and 6 GHz frequency bands
Ta slovenski standard je istoveten z: TBR 043 Edition 1
ICS:
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
SIST TBR 043 E1:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST TBR 043 E1:2004
---------------------- Page: 2 ----------------------
SIST TBR 043 E1:2004
TECHNICAL TBR 43
BASIS for May 1998
REGULATION
Source: SES Reference: DTBR/SES-00021
ICS: 33.020
Key words: Satellite, earth station, VSAT, type approval
Satellite Earth Stations and Systems (SES);
Very Small Aperture Terminal (VSAT)
transmit-only, transmit-and-receive, receive-only
satellite earth stations operating in the
4 GHz and 6 GHz frequency bands
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Internet: secretariat@etsi.fr - http://www.etsi.fr - http://www.etsi.org
Tel.: +33 4 92 94 42 00 - Fax: +33 4 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1998. All rights reserved.
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SIST TBR 043 E1:2004
Page 2
TBR 43: May 1998
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.
---------------------- Page: 4 ----------------------
SIST TBR 043 E1:2004
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TBR 43: May 1998
Contents
Foreword .7
Introduction.7
1 Scope .9
2 Normative references.10
3 Definitions and abbreviations .10
3.1 Definitions .10
3.2 Abbreviations .12
4 Requirements.12
4.1 Off-axis spurious radiation.12
4.1.1 Justification.12
4.1.2 Specification .13
4.1.2.1 Transmit VSAT .13
4.1.2.2 Receive-only VSAT.14
4.1.3 Conformance test.14
4.2 On-axis spurious radiation for transmit VSAT .14
4.2.1 Justification.14
4.2.2 Specification .14
4.2.2.1 Specification 1: Carrier-on state .14
4.2.2.2 Specification 2: Carrier-off state and transmission
disabled state.15
4.2.3 Conformance test.15
4.3 Off-axis EIRP emission density (co-polar and cross-polar) within the band 5,850 GHz
to 6,650 GHz.15
4.3.1 Justification.15
4.3.2 Specification .15
4.3.3 Conformance test.16
4.4 Transmit polarization discrimination (linear) or voltage axial ratio (circular).16
4.4.1 Justification.16
4.4.2 Specification .16
4.4.2.1 Specification 1 .16
4.4.2.2 Specification 2 .16
4.4.3 Conformance test.16
4.5 Carrier suppression .16
4.5.1 Justification.16
4.5.2 Specification .16
4.5.3 Conformance test.17
4.6 ElectroMagnetic Compatibility (EMC) .17
4.7 Mechanical (antenna pointing) for transmit VSAT .17
4.7.1 Justification.17
4.7.2 Specification .17
4.7.3 Conformance test.17
4.8 Control and monitoring for transmit VSAT.17
4.8.1 General.17
4.8.1.1 Control and Monitoring Functions (CMF) .18
4.8.1.2 Specification of states.19
4.8.2 Control Channels (CC).19
4.8.2.1 Justification.19
4.8.2.2 Specification .20
4.8.2.3 Conformance test .20
4.8.3 Self monitoring functions.20
4.8.3.1 Processor monitoring.21
4.8.3.1.1 Justification .21
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4.8.3.1.2 Specification. 21
4.8.3.1.3 Conformance test. 21
4.8.3.2 Transmit subsystem monitoring. 21
4.8.3.2.1 Justification . 21
4.8.3.2.2 Specification. 21
4.8.3.2.3 Conformance test. 21
4.8.3.3 VSAT transmission validation . 21
4.8.3.3.1 VSAT transmission validation by the
CCMF. 21
4.8.3.3.1.1 Justification . 21
4.8.3.3.1.2 Specification. 22
4.8.3.3.1.3 Conformance test. 22
4.8.3.3.2 VSAT transmission validation by
receiving station(s) . 22
4.8.3.3.2.1 Justification . 22
4.8.3.3.2.2 Specification. 22
4.8.3.3.2.3 Conformance test. 22
4.8.3.3.3 Transmission validation for VSAT
using external CC(s) . 22
4.8.3.3.3.1 Purpose. 22
4.8.3.3.3.2 Specification. 22
4.8.3.3.3.3 Conformance test. 22
4.8.4 Reception of commands from the CCMF. 22
4.8.4.1 Disable message . 23
4.8.4.1.1 Justification . 23
4.8.4.1.2 Specification. 23
4.8.4.1.3 Conformance test. 23
4.8.4.2 Enable message . 23
4.8.4.2.1 Justification . 23
4.8.4.2.2 Specification. 23
4.8.4.2.3 Conformance test. 23
4.8.5 Power-on/Reset . 23
4.8.5.1 Justification . 23
4.8.5.2 Specification. 23
4.8.5.3 Conformance test. 23
5 Test methods. 24
5.1 Off-axis spurious radiation . 24
5.1.1 Test method. 25
5.1.1.1 Up to 1 000 MHz . 25
5.1.1.1.1 Test site. 25
5.1.1.1.2 Measuring receivers. 25
5.1.1.1.3 Procedure. 26
5.1.1.2 Above 1 000 MHz. 26
5.1.1.2.1 Identification of the significant
frequencies of spurious radiation . 26
5.1.1.2.1.1 Test site. 26
5.1.1.2.1.2 Procedure. 26
5.1.1.2.2 Measurement of radiated power levels
of identified spurious radiation . 27
5.1.1.2.2.1 Test site. 27
5.1.1.2.2.2 Procedure. 27
5.1.1.2.3 Measurement of conducted spurious
radiation at the antenna flange. 28
5.1.1.2.3.1 Test site. 28
5.1.1.2.3.2 Procedure. 28
5.2 On-axis spurious radiation for transmit VSAT. 29
5.2.1 Test method. 29
5.2.1.1 Test site . 29
5.2.1.2 Method of measurement. 29
5.2.1.2.1 General. 29
5.2.1.2.2 Method of measurement at the
antenna flange. 29
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5.2.1.2.3 Method of measurement with a test
antenna.30
5.3 Off-axis EIRP emission density within the band .31
5.3.1 Test method .31
5.3.1.1 Transmit output power density.31
5.3.1.1.1 Test site .31
5.3.1.1.2 Method of measurement.31
5.3.1.2 Antenna transmit gain.32
5.3.1.2.1 General .32
5.3.1.2.2 Test site .32
5.3.1.2.3 Method of measurement.32
5.3.1.3 Antenna transmit radiation patterns.33
5.3.1.3.1 General .33
5.3.1.3.2 Test site .33
5.3.1.3.3 Method of measurement.33
5.3.1.3.4 Co-polar radiation pattern - azimuth .34
5.3.1.3.5 Co-polar radiation pattern - elevation.34
5.3.1.3.6 Cross-polar radiation pattern - azimuth 35
5.3.1.3.7 Cross-polar radiation pattern -
elevation.35
5.3.2 Computation of results .36
5.4 Transmit polarization discrimination (linear) or voltage axial ratio (circular).36
5.4.1 General.36
5.4.2 Test method .36
5.4.2.1 Method of measurement.36
5.5 Carrier suppression .38
5.5.1 Test method .38
5.6 Antenna pointing for transmit VSAT .38
5.6.1 Test method .38
5.7 Control and monitoring for transmit VSAT.39
5.7.1 Test arrangement.39
5.7.2 Control channels .40
5.7.2.1 Test method.40
5.7.2.1.1 Test method for internal CC(s) .40
5.7.2.1.2 Test method for external CC(s) .40
5.7.3 Processor monitoring .41
5.7.3.1 Test method.41
5.7.4 Transmit subsystem monitoring .41
5.7.4.1 Test method.41
5.7.5 VSAT transmission validation.41
5.7.5.1 Test method for VSAT validation by the CCMF for VSAT
using internal CC(s).41
5.7.5.2 Test method for VSAT validation by receiving station(s)
for VSAT using internal CC(s) .41
5.7.5.3 Test method for transmission validation for VSAT using
external CC(s) .41
5.7.6 Reception of commands from the CCMF.42
5.7.6.1 Test method.42
5.7.7 Power-on/Reset.42
5.7.7.1 Test method.42
6. Test methods for modified VSAT .42
6.1 Antenna subsystem replacement .43
Annex A (normative): The TBR Requirements Table (TBR-RT).44
Annex B (informative): Pointing stability methodology .45
Annex C (informative): Bibliography.46
History.47
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Foreword
This Technical Basis for Regulation (TBR) has been produced by the Satellite Earth Stations and Systems
(SES) Technical Committee of the European Telecommunications Standards Institute (ETSI).
The present document has been produced by ETSI in response to a mandate from the European
Commission issued under Council Directive 83/189/EEC (as amended) laying down a procedure for the
provision of information in the field of technical standards and regulations.
The present document is intended to become a Harmonized Standard, the reference of which will be
published in the Official Journal of the European Communities referencing the Council Directive
93/97/EEC of 29 October 1993 supplementing Directive 91/263/EEC in respect of satellite earth station
equipment (the "SES Directive").
A common technical regulation may be established by the European Commission in accordance with the
Directive.
Introduction
The Satellite Earth Station (SES) Directive [1] which supplements the Telecommunications Terminal
Equipment (TTE) Directive [2] concerns the harmonisation of conditions for the placing on the market of
such equipment.
Two classes of standard are applicable to SES equipment. European Telecommunication Standards
(ETS) give the full technical specifications for this equipment, whereas Technical Bases for Regulation
(TBR) give the essential requirements under the SES Directive [1] and the TTE Directive [2] for placing
such equipment on the market. Receive-only equipment, not intended for terrestrial connection to the
public telecommunications network, may be put into use. Nothing in this TBR is construed to prevent the
use of Community internal production control procedures as set out in the annexes to the two Directives
for such receive-only equipment. This TBR is based on ETS 300 332, ETS 300 333, ETS 300 160 and
ETS 300 456 (see annex C, Bibliography).
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1 Scope
This Technical Basis for Regulation (TBR) specifies the technical requirements that apply to Very Small
Aperture Terminal (VSAT) for compliance with Articles 4.1 and 4.3 of the SES Directive [1].
The VSAT has the following characteristics:
- the VSAT is operating in the following bands allocated to the Fixed Satellite Service (FSS), shared
with other services, e.g. the Fixed Service (FS) and the Mobile Service (MS):
- 5,85 GHz to 6,65 GHz (earth-to-space);
- 3,40 GHz to 4,20 GHz (space-to-earth);
- the VSAT uses linear or circular polarization;
- the VSAT operates through a geostationary satellite at least 3° away from any other geostationary
satellite operating in the same frequency band and covering the same area;
- the VSAT antenna diameter does not exceed 7,3 m, or equivalent effective area;
- the VSAT is either:
- transmit-only VSAT: designed for transmission-only of radio-communications signals in the
frequency band specified above; or
- transmit-and-receive VSAT: designed for transmission-and-reception of radio-
communications signals in the frequency band specified above; or
- receive-only VSAT: designed for reception-only of radio-communications signals in the
frequency band specified above;
- the VSAT is designed usually for unattended operation;
- the VSAT is operating as part of a satellite network (e.g. star, mesh or point-to-point) used for the
distribution and/or exchange of information between users;
- the transmit-only and transmit-and-receive VSAT is controlled and monitored by a Centralized
Control and Monitoring Function (CCMF). The CCMF is outside the scope of this TBR.
This TBR applies to the VSAT (including its ancillary equipment and its various terrestrial ports) operated
under the conditions which are within the ranges of humidity, temperature and supply voltage declared by
the manufacturer.
The requirements have been selected to ensure an adequate level of compatibility with other radio
services. The levels, however, do not cover extreme cases which may occur in any location but with a low
probability of occurrence.
This TBR may not cover those cases where a potential source of interference which is producing
individually repeated transient phenomena or a continuous phenomenon is present, e.g. a radar or
broadcast site in the near vicinity. In such a case it may be necessary to use special protection applied to
either the source of interference, or the interfered part or both.
This TBR does not contain any requirement, recommendation or information about the installation of the
VSAT.
Compliance of a VSAT to the requirements of this TBR does not imply compliance to any requirement
related to the use of the VSAT (e.g. licensing requirements).
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2 Normative references
This TBR incorporates by dated or undated reference, provisions from other publications. These
references are cited at the appropriate places in the text and the publications are listed hereafter. For
dated references, subsequent amendments to, or revisions of any of these publications apply to this TBR
only when incorporated into it by amendment or revision. For undated references the latest edition of the
publication referred to applies.
[1] SES Directive: "Council Directive 93/97/EEC (1993) supplementing Directive
91/263/EEC in respect of satellite earth station equipment".
[2] TTE Directive: "Council Directive 91/263/EEC (1991) on the approximation of
the laws of Member States concerning telecommunications terminal equipment,
including the mutual recognition of their conformity".
[3] ETS 300 673 (1996): "Radio Equipment and Systems (RES); ElectroMagnetic
Compatibility (EMC) standard for 4/6 GHz and 11/12/14 GHz Very Small
Aperture Terminal (VSAT) equipment and 11/12/13/14 GHz Satellite News
Gathering (SNG) Transportable Earth Station (TES) equipment".
[4] CISPR N 16-1 (1993): "Specification for radio interference measuring apparatus
and measurements methods; Part 1: Radio disturbance and immunity
measuring apparatus" (Annex G: Validation of the open area test site for the
frequency range of 30 MHz to 1 000 MHz).
NOTE: This TBR also contains a number of informative references which have been included
to indicate the sources from which various material has been derived, hence they do
not have an associated normative reference number. Details of these publications are
given in annex C (Bibliography).
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this TBR, the following definitions apply:
ancillary equipment: Equipment used in connection with the VSAT is considered ancillary if the three
following conditions are met:
a) the equipment is intended for use in conjunction with the VSAT to provide additional operational
and/or control features (e.g. to extend control to another position or location); and
b) the equipment cannot be used on a stand alone basis, to provide user functions independently of
the VSAT; and
c) the absence of the equipment does not inhibit the operation of the VSAT.
carrier-off state: A VSAT is in this state when it is authorized by the Centralized Control and Monitoring
Functions (CCMF) to transmit, but when it does not transmit any signal.
NOTE 1: The existence of a carrier-off state depends on the system of transmission used. For
VSAT designed for continuous transmission mode there may be no carrier-off state.
carrier-on state: A VSAT is in this state when it is authorized by the CCMF to transmit and when it
transmits a signal.
Centralized Control and Monitoring Functions (CCMF): A set of functional entities that, at system
level, monitor and control the correct operation of all transmit VSAT in a network.
Control Channel (CC): A channel or channels by which VSAT receive control information from the
CCMF.
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Cross-Polarization Discrimination (XPD): The ratio of the on-axis co-polar gain to the cross-polar gain
in a given direction, at a transmit or receive frequency.
external Control Channel (CC): A control channel which is either (i) carried by the VSAT network via the
same or another satellite, but not within the internal protocol of the VSAT system, or (ii) carried by the
PSTN or some other means.
external Response Channel (RC): A response channel which is either (i) carried by the VSAT network
via the same or another satellite, but not within the internal protocol of the VSAT system, or (ii) carried by
the PSTN or some other means.
indoor unit: Is composed of that part of the VSAT which is not part of the outdoor unit. It is generally
installed inside a building and is connected to the outdoor unit. The connection cable between the outdoor
and indoor unit is considered part of the indoor unit.
internal Control Channel (CC): A control channel which is carried by the VSAT network via the same
satellite as used for transmission of user data and within the internal protocol of the VSAT system.
internal Response Channel (RC): A response channel which is carried by the VSAT network via the
same satellite as used for transmission of user data and within the internal protocol of the VSAT system.
manufacturer: The legal entity responsible under the terms of the Council Directive 93/97/EEC [1] for
placing the product on the market in a member state.
network: In this TBR a network is any network configuration including star, mesh and point-to-point
configurations.
nominated bandwidth: The bandwidth of the VSAT radio frequency transmission is nominated by the
manufacturer. The nominated bandwidth is centred on the transmit frequency and does not exceed
5 times the occupied bandwidth.
NOTE 2: The nominated bandwidth is wide enough to encompass all spectral elements of the
transmission which have a level greater than the specified spurious radiation limits.
The nominated bandwidth is wide enough to take account of the transmit carrier
frequency stability. This definition is chosen to allow flexibility regarding adjacent
channel interference levels which will be taken into account by operational procedures
depending on the exact transponder carrier assignment situation.
occupied Bandwidth (Bo): For a digital modulation scheme - the width of the signal spectrum 10 dB
below the maximum in-band density. For an analogue modulation scheme - the width of a frequency band
such that, below the lower and above the upper frequency limits, the mean power emitted is equal to
0,5 % of the total mean power of the emission.
outdoor unit: The part of the VSAT intended to be installed outdoor, as declared by the manufacturer, or
as indicated in the user documentation.
The outdoor unit usually comprises three main parts:
a) the antenna sub-system which converts the incident radiation field into a guided wave and
vice versa;
b) the Low Noise Block (LNB) down-converter, which is a device that amplifies, with very low internal
noise, the received signals in the Radio Frequency (RF) band and converts them to intermediate
frequencies;
c) the up-converter and the power amplifier which convert from the intermediate frequency to RF and
am
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