ETSI ETS 300 633 ed.1 (1997-06)

SLOVENSKI STANDARD
SIST ETS 300 633 E1:2003
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
SIST ETS 300 633 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 633 E1:2003

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SIST ETS 300 633 E1:2003
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.

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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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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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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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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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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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[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
...