SIST ETS 300 633 E1:2003
(Main)Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Low and medium capacity point-to-point DRRS operating in the frequency range 2,1 GHz to 2,6 GHz
- Abstract
Standardisation of digital systems with bit rates up to 4 x 2/8 Mbit/s suitable for the use on long and partially obstructed paths, for the use in the band around 2,6 GHz.
- Status
- Published
- Publication Date
- 30-Nov-2003
- Withdrawal Date
- 30-Sep-2003
- Technical Committee
- RES - Radio equipment and systems
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2003
- Due Date
- 01-Dec-2003
- Completion Date
- 01-Dec-2003
SIST ETS 300 633 E1:2003 is the Slovenian standard identical to ETS 300 633 Edition 1 from ETSI. It specifies minimum performance parameters for terrestrial low and medium capacity point-to-point digital radio relay systems operating in the 2.1 GHz to 2.6 GHz range. In practice, it is used to plan, design, test, and compare fixed radio links for local and regional networks.
What does SIST ETS 300 633 E1:2003 specify?
SIST ETS 300 633 E1:2003 specifies the minimum performance of point-to-point digital fixed service radio relay equipment for operation in the 2.1 GHz to 2.6 GHz range. The standard focuses on compatibility between equipment from different sources on the same route and on transmission quality for low and medium capacity PDH-based links.
The document is organized into clauses for scope, normative references, abbreviations and symbols, general characteristics, baseband characteristics, transmitter characteristics, receiver characteristics, system characteristics, and feeder/antenna requirements. Annex A is informative and gives indicative channel capacities.
| Annex | What it covers |
|---|---|
| Annex A | Indicative channel capacities for the three equipment classes and the listed channel spacings |
What are the key requirements of SIST ETS 300 633 E1:2003?
The standard sets requirements in several linked areas: frequency planning, installation conditions, interfaces, transmitter and receiver performance, and end-to-end system behavior. For a buyer or engineer, the important point is that the radio link must fit a standardized channel plan and meet the stated RF and BER limits for the chosen class.
Frequency bands, channel spacings, and duplex separation
Clause 4.1 assigns operation to paired bands in the 2.1 GHz and 2.6 GHz ranges and also to the 2.3 GHz to 2.5 GHz band. Clause 4.2.1 lists standard channel spacings from 500 kHz up to 3.5 MHz, with 7 MHz and 14 MHz reserved for Class 2 and Class 3 equipment.
Clause 4.2.2 gives the duplex frequency separations for the three operating bands. This matters in frequency planning because the link must match the local channel arrangement and the transmit and receive paths must be spaced correctly.
Installation conditions, EMC, and power supply
Clause 4.3 ties the equipment to environmental classes in ETS 300 019 for weather protected and non-weather protected locations. Clause 4.3.2 points to ETS 300 385 for equipment at bit rates of 2 Mbit/s and above, and to ETS 300 339 for lower capacities.
Clause 4.3.3 links operation to standard power supplies in ETS 300 132 Parts 1 and 2, and also names 110 V ac and 24 V dc as possible additional ranges. For implementation, this means the equipment has to be matched to the site power system and to the climatic exposure of the installation.
Baseband and RF interfaces
Clause 4.6 requires 50 Ω coaxial RF interfaces at the antenna reference points, with standard IEC connectors unless an integral antenna is used. Clause 5.1 links PDH interfaces to ITU-T G.703, ITU-T V.11, and related interfaces, while clause 5.2 covers 2-wire and 4-wire analogue interfaces through ITU-T G.712.
If analogue service is the primary function, the standard also requires digital test points with NRZ data and clock at the transmitted bit rate. That helps with system measurements and fault isolation during acceptance or maintenance.
Transmitter performance
Clause 6.1 limits transmitter output power at point C' to +40 dBm maximum and requires adjustment if lower power is needed for regulatory reasons. Clause 6.2 applies the spectrum mask in figure 2 to the relevant channel spacing, and clause 6.3 limits spectral lines at the symbol rate.
Clause 6.4 sets spurious emission limits and clause 6.6 requires at least 15 dB return loss at the transmitter output. In practice, these clauses control adjacent-channel impact, unwanted emissions, and impedance matching.
Receiver performance
Clause 7.1 sets image rejection requirements where image rejection is applicable, with different minima for Class 1 and 2 versus Class 3. Clauses 7.2 to 7.4 cover receiver spurious emissions, input level range, and return loss.
These limits matter because they define how well the receiver resists unwanted signals and how much input variation it can tolerate while still working reliably.
System performance and interference behavior
Clause 8.1 gives receiver sensitivity requirements by class and channel spacing using BER thresholds. Clause 8.2 sets a background BER measurement under simulated operating conditions over an artificial hop, and clause 8.3 covers interference sensitivity for co-channel, adjacent channel, and CW spurious interference.
The interference tests are referenced to point C and use a wanted-to-unwanted ratio, so they are directly relevant to link coordination and acceptance testing. Annex A then links the channel spacing and class to indicative gross bit rates.
Equipment classes
Clause 1 and Annex A use three classes of equipment. Class 1 is based on typically 2-state modulation, Class 2 on typically 4-state modulation, and Class 3 on typically 16-state modulation.
This classification matters because it affects channel capacity, spectrum usage, receiver sensitivity, and the applicable spectral mask.
What terms does SIST ETS 300 633 E1:2003 define?
- Bit Error Ratio (BER) - The proportion of received bits that are wrong, used here to define receiver performance and link quality.
- Continuous Wave (CW) - A steady unmodulated signal used in the spurious interference test to probe receiver susceptibility.
- ElectroMagnetic Compatibility (EMC) - The ability of the equipment to operate without causing or suffering unacceptable electromagnetic disturbance.
- Plesiochronous Digital Hierarchy (PDH) - The digital transport hierarchy used for the baseband interfaces covered by the standard.
- Point-to-Point (P-P) - A link between two fixed sites, which is the operating model for the radio relay system.
- Telecommunications Management Network (TMN) - The management interface framework referenced for any TMN interface.
- Quadrature Amplitude Modulation (QAM) - A modulation method used as an example for Class 2 and Class 3 equipment.
- Receive Signal Level (RSL) - The level of the wanted signal at the receiver, used in BER and interference testing.
Who uses SIST ETS 300 633 E1:2003?
Radio link designers use it to choose channel spacing, modulation class, power level, and interface type. Network planners and frequency coordinators use it to place links in the 2.1 GHz to 2.6 GHz band and to manage polarization and duplex separation.
Test laboratories use it for transmitter, receiver, BER, interference, and return-loss measurements. Quality managers and buyers use it to compare equipment claims and to check whether a product fits the required site conditions, power source, and service type.
It is relevant to fixed telecommunications, local and regional networks, customer connections, ISDN extension, mobile base station backhaul, telemetry and telecontrol, transportable and offshore use, and digital TV applications.
Which standards are used with SIST ETS 300 633 E1:2003?
| Reference | What it contributes |
|---|---|
| CEPT Recommendation T/R 13-01 | Preferred channel arrangements for fixed services in 1 to 3 GHz |
| ETS 300 019 Parts 1 and 2 | Environmental classes and environmental tests |
| ITU-T G.703 | Physical and electrical characteristics of hierarchical digital interfaces |
| ITU-R F.696-1 | Error performance and availability objectives for ISDN medium-grade sections |
| ITU-R F.697-1 | Error performance and availability objectives for ISDN local-grade sections |
| ITU-T G.773 | Protocol suites for TMN Q-interfaces |
| ITU-T G.821 | Error performance of digital connections in ISDN |
| ITU-T G.826 | Error performance objectives for constant bit rate digital paths |
| ETS 300 385 | EMC standard for digital fixed radio links and ancillary equipment |
| ITU-T V.11 | Electrical characteristics for balanced interchange circuits up to 10 Mbit/s |
| ITU-T G.712 | Transmission performance characteristics of PCM |
| EN 300 631 | Antenna requirements for point-to-point radio links in 1 to 3 GHz bands |
| ITU-T V.24 | Definitions for DTE-DCE interchange circuits |
| ETR 080 | ISDN basic rate access over metallic local lines |
| ITU-R F.746 | Radio-frequency channel arrangements for radio-relay systems |
| ITU-R F.634-3 | Error performance objectives for real digital radio-relay links |
| prETS 300 339 | General EMC for radio equipment |
| ETS 300 132 Parts 1 and 2 | Power supply interface requirements for ac and dc equipment |
What does the SIST ETS 300 633 E1:2003 document contain?
The document contains a block diagram that defines the reference points used for RF and system measurements, along with a spectrum mask figure for transmitter emissions. It includes tables for power supplies, baseband interfaces, receiver sensitivity, and interference test conditions.
Clause 8 also describes measurement set-ups for BER versus input level, background BER, co-channel interference, adjacent channel interference, and CW spurious interference. Annex A provides indicative gross bit rates for each class and channel spacing, which is useful when selecting equipment capacity for a planned channel width.
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Frequently Asked Questions
SIST ETS 300 633 E1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Low and medium capacity point-to-point DRRS operating in the frequency range 2,1 GHz to 2,6 GHz". This standard covers: Standardisation of digital systems with bit rates up to 4 x 2/8 Mbit/s suitable for the use on long and partially obstructed paths, for the use in the band around 2,6 GHz.
Standardisation of digital systems with bit rates up to 4 x 2/8 Mbit/s suitable for the use on long and partially obstructed paths, for the use in the band around 2,6 GHz.
SIST ETS 300 633 E1:2003 is classified under the following ICS (International Classification for Standards) categories: 33.040.20 - Transmission systems; 33.060.30 - Radio relay and fixed satellite communications systems. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST ETS 300 633 E1:2003 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-december-2003
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Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Low and
medium capacity point-to-point DRRS operating in the frequency range 2,1 GHz to 2,6
GHz
Ta slovenski standard je istoveten z: ETS 300 633 Edition 1
ICS:
33.040.20 Prenosni sistem Transmission systems
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.
EUROPEAN ETS 300 633
TELECOMMUNICATION June 1997
STANDARD
Source: ETSI TC-TM Reference: DE/TM-04034
ICS: 33.020
Key words: Point-to-point, radio, DRRS, transmission
Transmission and Multiplexing (TM);
Digital Radio Relay Systems (DRRS);
Low and medium capacity point-to-point DRRS operating
in the frequency range 2,1 to 2,6 GHz
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
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.fr
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 1997. All rights reserved.
Page 2
ETS 300 633: June 1997
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.
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ETS 300 633: June 1997
Contents
Foreword .5
1 Scope .7
2 Normative references.8
3 Abbreviations and symbols .9
3.1 Abbreviations .9
3.2 Symbols .9
4 General characteristics .10
4.1 Frequency bands and channel arrangements .10
4.2 Modes of operation .10
4.2.1 Channel spacing.10
4.2.2 Transmit/receive duplex frequency separation .10
4.3 Installation.10
4.3.1 Environmental conditions .10
4.3.1.1 Equipment within weather protected locations .10
4.3.1.2 Equipment for non-weather protected locations.10
4.3.2 Electromagnetic compatibility conditions.11
4.3.3 Power supply.11
4.4 TMN requirements.11
4.5 Block diagram .11
4.6 Radio Frequency (RF) interfaces.12
5 Baseband characteristics .12
5.1 Plesiochronous Digital Hierarchy (PDH) interfaces .12
5.2 Analogue interfaces .12
6 Transmitter characteristics.12
6.1 Output power .12
6.2 RF spectrum masks.12
6.3 Spectral lines at the symbol rate.13
6.4 Spurious emissions.14
6.5 Radio frequency tolerance.14
6.6 Return loss.14
7 Receiver characteristics .14
7.1 Receiver image rejection .14
7.2 Receiver spurious emissions.14
7.3 Input level range .14
7.4 Return loss.14
8 System characteristics .15
8.1 BER as a function of receiver input level .15
8.2 Equipment background BER .15
8.3 Interference sensitivity .16
8.3.1 Co-channel interference.16
8.3.2 Adjacent channel interference.16
8.3.3 CW spurious interference.16
9 Feeder/antenna requirements.17
Annex A (informative): Indicative channel capacities.18
History.19
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ETS 300 633: June 1997
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ETS 300 633: June 1997
Foreword
This European Telecommunication Standard (ETS) has been prepared by the Transmission and
Multiplexing (TM) Technical Committee of the European Telecommunications Standards Institute (ETSI).
Transposition dates
Date of adoption: 2 May 1997
Date of latest announcement of this ETS (doa): 30 September 1997
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 March 1998
Date of withdrawal of any conflicting National Standard (dow): 31 March 1998
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ETS 300 633: June 1997
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ETS 300 633: June 1997
1 Scope
This European Telecommunication Standard (ETS) specifies the minimum performance parameters for
terrestrial low and medium capacity Point-to-Point (P-P) digital fixed service radio relay equipment
operating in the range 2,1 to 2,6 GHz. The requirements and limits given in this ETS are relevant to all
environmental conditions for the chosen climatic class. Test methods are under study.
Digital systems are intended to be used for P-P connections in local and regional networks at data rates of
N × 64 kbit/s, N × 2 Mbit/s (N = 1, 2, 4, 8, 16), 2 × 8 Mbit/s and 34 Mbit/s. Other data rates may also be
foreseen. Typical applications include:
a) customer connections;
b) Integrated Services Digital Network (ISDN) extension;
c) mobile base station connections;
d) telemetry and telecontrol, including transportable and off-shore use;
e) digital TV application.
The parameters to be specified fall into two categories:
a) Those that are required to provide compatibility between channels from different sources of
equipment on the same route, connected either to:
- separate antennas; or
- separate polarizations of the same antenna.
b) Parameters defining the transmission quality of the proposed system.
This ETS deals with Intermediate Frequency (IF), Radio Frequency (RF) and baseband characteristics
relevant to low and medium capacity Plesiochronous Digital Hierarchy (PDH) transmission.
Antenna/feeder system requirements are covered in EN 300 631 [12].
Due to the wide spread of applications and corresponding system rates, parameters such as RF spectrum
masks and receiver sensitivity are related to standardized channel spacings rather than to minimum
system rates. This allows individual countries to allocate a bandwidth and therefore a standard channel
spacing in accordance with the foreseen services and their own frequency management and radio
network planning.
As the maximum bit rate in a given bandwidth depends on the system spectral efficiency, different
equipment classes are defined:
Class 1: equipment performance based on typically 2-states modulation scheme (e.g.
2-FSK (Frequency-Shift Keying), Gaussian Minimum Shift Keying (GMSK) with
discriminator detection, or equivalent);
Class 2: equipment performances based on typically 4-states modulation scheme (e.g.
4-FSK, 4 - QAM (Quadrature Amplitude Modulation), or equivalent);
Class 3: equipment performances based on typically 16-states modulation scheme (e.g.
16-QAM, or equivalent).
Safety aspects are outside the mandate of ETSI and they will not be considered in this ETS.
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ETS 300 633: June 1997
2 Normative references
This ETS incorporates, by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate place 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
ETS only when incorporated in it by amendment or revision. For undated references, the latest edition of
the publication referred to applies.
[1] CEPT Recommendation T/R 13-01: "Preferred channel arrangements for fixed
services in the range 1 - 3 GHz".
[2] ETS 300 019, Parts 1 and 2 (1994): "Equipment Engineering (EE);
Environmental conditions and environmental tests for telecommunications
equipment; subparts 1-1 to 1-7: Classification of environmental conditions;
subparts 2-1 to 2-7: Specification of environmental tests".
[3] ITU-T Recommendation G.703 (1991): "Physical/electrical characteristics of
hierarchical digital interfaces".
[4] ITU-R Recommendation F.696-1: "Error performance and availability objectives
for hypothetical reference digital sections utilizing digital radio-relay systems
forming part or all of the medium-grade portion of an ISDN connection".
[5] ITU-R Recommendation F.697-1: "Error performance and availability objectives
for the local-grade portion at each end of an ISDN connection utilizing digital
radio-relay systems".
[6] ITU-T Recommendation G.773 (1993): "Protocol suites for Q-interfaces for
management of transmission systems".
[7] ITU-T Recommendation G.821 (1988): "Error performance of an international
digital connection forming part of an integrated services digital network".
[8] ITU-T Recommendation G.826 (1993): "Error performance parameters and
objectives for international, constant bit rate digital paths at or above the primary
rate".
[9] ETS 300 385: "Radio Equipment and Systems (RES); ElectroMagnetic
Compatibility (EMC) standard for digital fixed radio links and ancillary equipment
with data rates at around 2 Mbit/s and above".
[10] ITU-T Recommendation V.11 (1993): "Electrical characteristics for balanced
double-current interchange circuits operating at data signalling rates up to
10 Mbit/s".
[11] ITU-T Recommendation G.712 (1992): "Transmission performance
characteristics of pulse code modulation".
[12] EN 300 631: "Transmission and Multiplexing (TM); Digital Radio Relay Systems
(DRRS); Antennas for point-to-point radio links in bands 1 to 3 GHz".
[13] ITU-T Recommendation V.24 (1993): "List of definitions for interchange circuits
between terminal equipment (DTE) and data circuit-terminating equipment
(DCE)".
[14] ETR 080 (1996): "Transmission and Multiplexing (TM); Integrated Services
Digital Network (ISDN) basic rate access; Digital transmission system on
metallic local lines".
[15] ITU-R Recommendation F.746: "Radio-frequency channel arrangements for
radio-relays systems".
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ETS 300 633: June 1997
[16] ITU-R Recommendation F.634-3: "Error performance objectives for real digital
radio-relay links forming part of a high-grade circuit within an integrated services
digital network".
[17] prETS 300 339: "Radio Equipment and Systems (RES); General Electro-
Magnetic Compatibility (EMC) for radio equipment".
[18] ETS 300 132: "Equipment Engineering (EE); Power supply interface at the input
to telecommunications equipment; Part 1: Operated by alternating current (ac)
and Part 2: Operated by direct current (dc)".
3 Abbreviations and symbols
3.1 Abbreviations
For the purposes of this ETS, the following abbreviations apply:
BB BaseBand
BER Bit Error Ratio
CW Continuous Wave
EMC ElectroMagnetic Compatibility
FEC Forward Error Correction
FSK Frequency Shift Keying
GMSK Gaussian Minimum Shift Keying
IF Intermediate Frequency
IF/RF Intermediate Frequency/Radio Frequency
ISDN Integrated Services Digital Network
LO Local Oscillator
NRZ Non Return to Zero
PDH Plesiochronous Digital Hierarchy
P-P Point-to-Point
PRBS Pseudo Random Binary Sequence
QAM Quadrature Amplitude Modulation
RF Radio Frequency
RSL Receive Signal Level
RX Receiver
S/I Signal to Interference ratio
SRL Spectrum Reference Level
TMN Telecommunications Management Network
TX Transmitter
XPD cross-Polar Discrimination
W/U Wanted to Unwanted signal ratio
3.2 Symbols
For the purposes of this ETS, the following symbols apply:
dB deciBel
dBm deciBel relative to 1 mW
GHz GigaHert
...