ETSI ETS 300 639 ed.1 (1996-10)

Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Sub-STM-1 DRRS operating in the 13 GHz, 15 GHz and 18 GHz frequency bands with about 28 MHz co-polar and 14 MHz cross-polar channel spacing

DE/TM-04016

Prenos in multipleksiranje (TM) – Digitalni radiorelejni sistemi (DRRS) – Sub-STM-1 DRRS, ki deluje v frekvenčnih pasovih 13 GHz, 15 GHz in 18 GHz z okrog 28 MHz za enako polarizacijo in 14 MHz za križno polarizacijo pri razmiku kanalov

General Information

• Status: Published
• Publication Date: 23-Oct-1996
• Technical Committee: TM 4 - TM Fixed Radio Systems
• Current Stage: 13 - TB decision to make document historical
• Completion Date: 10-May-2007
• Ref Project: SIST ETS 300 639 E1:2003 - Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Sub-STM-1 DRRS operating in the 13 GHz, 15 GHz and 18 GHz frequency bands with about 28 MHz co-polar and 14 MHz cross-polar channel spacing

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 639 E1:2003
01-december-2003
3UHQRVLQPXOWLSOHNVLUDQMH70±'LJLWDOQLUDGLRUHOHMQLVLVWHPL'556±6XE670
'556NLGHOXMHYIUHNYHQþQLKSDVRYLK*+]*+]LQ*+]]RNURJ0+]
]DHQDNRSRODUL]DFLMRLQ0+]]DNULåQRSRODUL]DFLMRSULUD]PLNXNDQDORY
Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Sub-STM-1
DRRS operating in the 13 GHz, 15 GHz and 18 GHz frequency bands with about 28
MHz co-polar and 14 MHz cross-polar channel spacing
Ta slovenski standard je istoveten z: ETS 300 639 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 300 639 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 639 E1:2003

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SIST ETS 300 639 E1:2003
EUROPEAN ETS 300 639
TELECOMMUNICATION October 1996
STANDARD
Source: ETSI TC-TM Reference: DE/TM-04016
ICS: 33.060.30
Key words: DRRS, radio, transmission, SDH, STM
Transmission and Multiplexing (TM);
Sub-STM1 Digital Radio Relay Systems (DRRS) operating
in the 13 GHz, 15 GHz and 18 GHz frequency bands
with about 28 MHz co-polar
and 14 MHz cross-polar channel spacing
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: [e-mail]
Tel.: [phone] - Fax: [phone]
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 1996. All rights reserved.

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ETS 300 639: October 1996
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 300 639: October 1996
Contents
Foreword .5
1 Scope .7
2 Normative references.8
3 Abbreviations and symbols .10
3.1 Abbreviations .10
3.2 Symbols .10
4 General characteristics .11
4.1 Frequency bands and channel arrangements .11
4.2 Types of installation .11
4.2.1 Environmental conditions .11
4.2.1.1 Equipment within weather protected locations (indoor
locations) .11
4.2.1.2 Equipment for non-weather protected locations (outdoor
locations) .11
4.3 Electromagnetic compatibility conditions .11
4.4 Mechanical requirements.11
4.5 Power supply.12
4.6 Telecommunications Management Network (TMN) interface .12
4.7 Block diagram .12
5 Baseband characteristics .12
5.1 Synchronous Digital Hierarchy (SDH).12
5.2 Plesiochronous Digital Hierarchy (PDH).13
6 Transmitter characteristics.13
6.1 Output power .13
6.2 Automatic Transmit Power Control (ATPC).13
6.3 RF spectrum mask .13
6.4 Spectral lines at the symbol rate.14
6.5 Spurious emissions.15
6.5.1 Spurious emissions - external .15
6.5.2 Spurious emissions - internal .16
6.6 Radio frequency tolerance.16
7 Receiver characteristics .16
7.1 Receiver image rejection .16
7.2 Spurious emissions.16
7.2.1 Spurious emissions - external .16
7.2.2 Spurious emissions - internal .16
7.3 Input level range .16
8 System characteristics .17
8.1 Equipment background BER .17
8.2 BER as a function of receiver input level .17
8.3 Interference sensitivity .17
8.3.1 Co-channel interference sensitivity .17
8.3.1.1 Co-channel interference sensitivity.17
8.3.2 Adjacent channel sensitivity .18
8.3.2.1 Adjacent channel (at 28 or 27,5 MHz channel spacing
respectively in the 13, 15 GHz or 18 GHz frequency band)
interference sensitivity .18

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8.3.2.2 Adjacent channel (at 14 MHz channel spacing in the
15 GHz frequency band) interference sensitivity . 19
8.3.3 Continuous Wave (CW) spurious interference. 20
8.4 Distortion sensitivity. 20
Annex A (informative): Additional information . 21
A.1 Branching/feeder/antenna requirement . 21
A.1.1 Antenna/Equipment/Feeder flanges. 21
A.1.2 Cross-Polar Discrimination (XPD). 21
A.1.3 Intermodulation products. 21
A.1.4 Interport isolation. 21
A.1.5 Return loss . 21
A.2 Automatic Transmit Power Control (ATPC). 21
A.3 Cross-Polar Interference Canceller (XPIC) . 22
Annex B (informative): Bibliography . 23
History. 24

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ETS 300 639: October 1996
Foreword
This European Telecommunication Standard (ETS) has been prepared by the Transmission and
Multiplexing (TM) Technical Committee of the European Telecommunications Standard Institute (ETSI)
and is now submitted for the Voting phase of the ETSI standards approval procedure.
This ETS contains the minimum technical requirements to ensure compatibility of products and
conformance with radio regulations across the European states of interest to ETSI Member. Radio
terminals from different manufacturers are not required to interwork at radio frequency (i.e. no common air
interface).
This ETS defines the requirements of radio terminal and radio relay equipment and associated interfaces.
The requirements for multiplex, network management and antenna/feeder equipment may be addressed
elsewhere.
Transposition dates
Date of adoption of this ETS: 4 October 1996
Date of latest announcement of this ETS (doa): 31 January 1997
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 July 1997
Date of withdrawal of any conflicting National Standard (dow): 31 July 1997

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ETS 300 639: October 1996
1 Scope
This European Telecommunication Standard (ETS) specifies the minimum performance parameters for
terrestrial fixed services radio communications equipment, as given below, for operation in the 13 GHz,
15 GHz and 18 GHz frequency bands (i.e. 12,75 to 13,25 GHz, 14,50 to 15,35 GHz and 17,70 to
19,70 GHz).
The equipments covered by this ETS are intended for operation with about 28 MHz basic channel spacing
with frequency re-use either in 14 MHz interleaved mode or in co-channel mode (definitions are in
ITU-R Recommendation F.746 [27]).
This ETS covers equipment for the transmission of sub-Synchronous Transport Module level-1 (STM-1)
digital signals with a Virtual Container-3 (VC-3) payload capacity. The standardization of sub-STM-1 radio
systems for 13 GHz, 15 GHz and 18 GHz bands has been prepared to ensure the compatibility with the
existing plesiochronous and the new synchronous systems concerning frequency plans and performance.
The architecture and functional aspects should be in accordance with ITU-R Recommendation F.750 [7]
and transmission characteristics and performance requirements in accordance with
ITU-R Recommendation F.751 [8].
This ETS do not cover aspects related to test procedures and test conditions which are currently under
study in TM4.
The application of these Digital Radio Relay Systems (DRRS) is anticipated to be for point-to-point links in
local, regional and national networks, mobile base station connections and customer access links.
Consideration has to be given to special requirements of the local network (e.g. simple towers with less
space for antenna, different network structures with high density nodes).
The systems considered in this ETS are intended to operate on average hop lengths about 15 km for
18 GHz band, 20 km for 15 GHz band and 30 km for 13 GHz band.
Equipment should be designed in order to meet network performance and availability requirements
defined by ITU-T Recommendations G.821 [18] and G.826 [19], following the criteria defined in
ITU-R Recommendations F.634 [3], F.695 [32], F.696 [5], F.697 [6], F.1092 [30] and F 1189 [31], for high
or medium or local grade or the international or the national portion of the digital connection.
The parameters to be specified fall into two categories:
a) those that are required to provide compatibility between Radio Frequency (RF) channels occupied
by different sources of equipment on the same route connected either:
- to separate antennas; or
- to separate polarization of the same antenna;
b) parameters defining the transmission quality of the proposed system.
The standardization deals with Intermediate Frequency (IF), RF and baseband characteristics relevant to
sub-STM-1 Synchronous Digital Hierarchy (SDH) transmission. Spurious emissions and ElectroMagnetic
Compatibility (EMC) requirements are also included in this ETS.
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] ITU-R Recommendation F.497: "Radio frequency channel arrangements for
radio relay systems operating in the 13 GHz frequency band".
[2] ITU-R Recommendation F.595: "Radio-frequency channel arrangements for
radio-relay systems operating in the 18 GHz frequency band".
[3] ITU-R Recommendation F.634: "Error performance objectives for real digital
radio-relay links forming part of a high grade circuit within an integrated services
digital network".
[4] ITU-R Recommendation F.636: "Radio-frequency channel arrangements for
radio-relay systems operating in the 15 GHz band".
[5] ITU-R Recommendation F.696: "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".
[6] ITU-R Recommendation F.697: "Error performance and availability objectives
for the local grade portion at each end of an ISDN connection utilizing digital
radio-relay systems".
[7] ITU-R Recommendation F.750: "Architectures and functional aspects of
radio-relay systems for SDH-based networks".
[8] ITU-R Recommendation F.751: "Transmission characteristics and performance
requirements of radio-relay systems for SDH-based networks".
[9] ITU-T Recommendation G.703: "Physical/electrical characteristics of
hierarchical digital interfaces".
[10] ITU-T Recommendation G.707: "Synchronous digital hierarchy bit rates".
[11] ITU-T Recommendation G.708: "Network node interface for the synchronous
digital hierarchy".
[12] ITU-T Recommendation G.709: "Synchronous multiplexing structure".
[13] ITU-T Recommendation G.773: "Protocol suites for Q interfaces for
management of transmission systems".
[14] ITU-T Recommendation G.781: "Structure of Recommendations on equipment
for the synchronous digital hierarchy (SDH)".
[15] ITU-T Recommendation G.782: "Types and general characteristics of
synchronous digital hierarchy (SDH) equipment".
[16] ITU-T Recommendation G.783: "Characteristics of synchronous digital hierarchy
(SDH) equipment functional blocks".
[17] ITU-T Recommendation G.784: "Synchronous digital hierarchy (SDH)
management".
[18] ITU-T Recommendation G.821: "Error performance of an international digital
connection forming part of an integrated services digital network".

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[19] ITU-T Recommendation G.826: "Error performance parameters and objectives
for international, constant bit-rate digital paths at or above the primary rate".
[20] ITU-T Recommendation G.957: "Optical interfaces for equipments and systems
relating to the synchronous digital hierarchy".
[21] ETS 300 019: "Equipment Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment".
[22] 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".
[23] ETS 300 132: "Equipment Engineering (EE); Power supply interface at the input
to telecommunications equipment".
[24] ETS 300 174 (1992): "Network Aspects (NA); Digital coding of component
television signals for contribution quality applications in the range 34-45 Mbit/s".
[25] IEC 835 (1993): "Methods of measurement for equipment used in digital
microwave radio transmission systems - Part 2: Measurements on terrestrial
radio relay systems - Section 4: Transmitter/Receiver including
modulator/demodulator".
[26] IEC 835 (1993): "Methods of measurement for equipment used in digital
microwave radio transmission systems - Part 2: Measurements on terrestrial
radio relay systems - Section 8: Adaptive equalizer".
[27] ITU-R Recommendation F.746: "Radio-frequency channel arrangements for
radio-relay systems".
[28] ITU-R Recommendation F.1191: "Bandwidths and unwanted emissions of
DRRS".
[29] ETS 300 119: "Equipment Engineering (EE); European telecommunication
standard for equipment practice".
[30] ITU-R Recommendation F.1092: "Error performance objectives for constant bit
rate digital paths at or above the primary rate carried by digital radio-relay
systems which may form part of the international portion of a 27 500 km
hypothetical reference path".
[31] ITU-R Recommendation F.1189: "Error performance objectives for constant bit
rate digital paths at or above the primary rate carried by digital radio-relay
systems which may form part of the national portion of a 27 500 km hypothetical
reference path".
[32] ITU-R Recommendation F.695: "Availability objectives for real digital radio-relay
links forming part of a high-grade circuit within an integrated services digital
network".

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3 Abbreviations and symbols
3.1 Abbreviations
For the purposes of this ETS, the following abbreviations apply:
ATPC Automatic Transmit Power Control
BB BaseBand
BER Bit Error Rate
BWe evaluation BandWidth (of spectrum analyser)
CMI Coded Mark Inversion
CW Continuous Wave
IF Intermediate Frequency
IF/RF Intermediate Frequency/Radio Frequency
LO Local Oscillator
NNI Network Node Interface
PDH Plesiochronous Digital Hierarchy
PRBS Pseudo-Random Binary Sequence
QAM Quadrature Amplitude Modulation
RF Radio Frequency
RSL Receive Signal Level
RX Receiver
SDH Synchronous Digital Hierarchy
SOH Section OverHead
SRL Spectrum Reference Level
STM-1 Synchronous Transport Module (level)-1
TM Transmission and Multiplex
TMN Telecommunications Management Network
TX Transmitter
VSWR Voltage Standing Wave Ratio
XPD Cross-Polar Discrimination
3.2 Symbols
For the purposes of this ETS, the following symbols apply:
dB decibel
dBm decibel relative to 1 mW
GHz Gigahertz
km kilometre
Mbit/s Megabit per second
MHz Megahertz
ns nanosecond
ppm parts per million

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4 General characteristics
4.1 Frequency bands and channel arrangements
The frequency bands covered by this ETS are the 12,75 to 13,25 GHz, 14,5 to 15,35 GHz and the 17,7 to
19,7 GHz fixed service bands.
The channelling arrangement for the 13 GHz frequency band is the plan with 28 MHz adjacent channel
spacing according to ITU-R Recommendation F.497 [1] and to the relevant CEPT Recommendation:
where applicable frequency re-use in co-channel mode can be envisaged (according to hop length and
climate zone).
The channelling arrangement for the 15 GHz frequency band is a basic plan with 28 MHz co-polar spacing
with frequency re-use either in 14 MHz interleaved mode or, where applicable (according to hop length
and climate zone), in co-channel mode. The separation of the innermost transmit and receive channel
centre frequencies will be equal to N x 28 MHz (N = integer) and greater than 84 MHz (see
ITU-R Recommendation F.636 [4] and the relevant CEPT Recommendation).
The channelling arrangements for the 18 GHz frequency band is a plan with 27,5 MHz adjacent channel
co-polar spacing according to the ITU-R Recommendation F.595 [2] and the relevant
CEPT Recommendation.
Equipment shall be designed in order to meet network performance and availability requirements defined
by ITU-T Recommendations G.821 [18] and G.826 [19], following the criteria defined in
ITU-R Recommendations F.634 [3], F.695 [32], F.696 [5], F.697 [6], F.1092 [30] and F 1189 [31], for high
or medium or local grade or the international or the national portion of the digital connection.
4.2 Types of installation
Both indoor and partially outdoor installations are considered.
4.2.1 Environmental conditions
The equipment shall be required to meet the environmental conditions set out in ETS 300 019 [21] which
defines weather protected and non-weather protected locations, classes and test severity.
The manufacturer shall state which class the equipment is designed to withstand.
4.2.1.1 Equipment within weather protected locations (indoor locations)
Equipment intended for operation within temperature controlled locations or partially temperature
controlled locations shall meet the requirements of ETS 300 019 [21] classes 3.1 and 3.2 respectively.
Optionally, the more stringent requirements of ETS 300 019 [21] classes 3.3 (non-temperature controlled
locations), 3.4 (sites with heat trap) and 3.5 (sheltered locations) may be applied.
4.2.1.2 Equipment for non-weather protected locations (outdoor locations)
Equipment intended for operation within non-weather protected locations shall meet the requirements of
ETS 300 019 [21], class 4.1 or 4.1E.
Class 4.1 applies to many European countries and class 4.1E applies to all European countries.
4.3 Electromagnetic compatibility conditions
Equipment shall operate under the conditions specified in ETS 300 385 [22].
4.4 Mechanical requirements
The mechanical dimensions for indoor installations shall be in agreement with ETS 300 119 [29].
The outdoor unit shall be separable from the antenna.

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In order to be easily handled by one man, the weight of any single separate unit shall not exceed 15 kg.
4.5 Power supply
The power supply interface shall be in accordance with the characteristics of one or more of the
secondary voltages foreseen in ETS 300 132 [23].
NOTE: Some applications may require secondary voltages that are not covered by
ETS 300 132 [23].
For DC systems, the positive pole of the voltage supply will be earthed at the source.
4.6 Telecommunications Management Network (TMN) interface
A TMN interface required by a user shall follow ETSI TM2 and TM3 standards and be in accordance with
ITU-T Recommendations G.784 [17], G.773 [13] and ITU-R Recommendation F.750 [7].
4.7 Block diagram
The system block diagram is shown in figure 1. The intersection points are for reference only and not
necessarily for measurement purposes nor do they indicate a specific design structure.
Z' A' B' C' D'
Branching
Transmitter RF Tx Filter Feeder
Network
(Note 1)
D C A Z
B
Branching
Feeder RF Rx Filter Receiver
Network
(Note 1)
NOTE 1: Points B and C, B’ and C’ may coincide.
NOTE 2: The branching network does not include the RF filtering. In outdoor equipment, the branching
network may be implemented by a common TX-RX duplexer.
Figure 1: Block diagram
5 Baseband characteristics
5.1 Synchronous Digital Hierarchy (SDH)
The SDH baseband interface shall be a Network Node Interface (NNI) at the STM-1 level in accordance
with ITU-T Recommendations G.703 [9], ITU-T Recommendation G.707 [10], G.708 [11], G.709 [12],
G.781 [14], G.782 [15], G.783 [16], G.784 [17] and G.957 [20] (with possible simplifications under study in
ETSI TM3 and TM4) and ITU-R Recommendation F.750 [7].
Two versions of the STM-1 interface are possible:
- a Coded Mark Inversion (CMI) electrical interface (ITU-T Recommendation G.703 [9] and
ITU-T Recommendation G.708 [11]);
- optical interface (ITU-T Recommendation G.957 [20]).
The use of reserved bytes contained in the Section Overhead (SOH), and their termination shall be in
accordance with ITU-R Recommendation F.750 [7].

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5.2 Plesiochronous Digital Hierarchy (PDH)
Optional PDH baseband interfaces may be required; they shall be in accordance with
ITU-T Recommendation G.703 [9] for:
- 2 Mbit/s; and
- 34 Mbit/s.
For digital video applications (ETS 300 174 [24] covering VC2-5c concatenation) an interface at 45 Mbit/s
in accordance with ITU-T Recommendation G.703 [9] (clause 5) may be required.
6 Transmitter characteristics
6.1 Output power
Transmitter output power (nominal and tolerance) at reference point B' (for equipment with a multi-channel
branching system) or C' (for equipment with a simple duplexer), defined in figure 1, shall not exceed
+30 dBm.
Administrations and operators may require specific output power ranges.
For indoor installation, the tolerance value around the nominal value is ± 1 dB.
For the outdoor installation, the tolerance value is +2 / -1 dB.
A capability for output power level adjustment may be required for regulatory purposes, in which case a
mean of adjustment, either by fixed or automatic attenuators, shall be provided.
In the case of STM-1 interface, the measurement of output power shall be carried out using an STM-1 test
signal (to be defined).
In the case of PDH signals, the measurement of output power shall be carried out with the carrier
23
modulated by a Pseudo-Random Binary Sequence (PRBS) of length 2 - 1 for the 34 Mbit/s interface and
15
a length of 2 - 1 for the 2 Mbit/s interface.
6.2 Automatic Transmit Power Control (ATPC)
ATPC is an optional feature; information on ATPC is given in informative annex A (see clause A.2).
6.3 RF spectrum mask
The spectrum mask is shown in figure 2. The spectrum mask shall be verified directly by measurement
(as the spectrum mask is a relative measurement it can be referenced either to point B' or C').
The mask shall be measured with a modulating baseband signal. In the case of a PDH interface, a PRBS
23 15
of 2 - 1 for 34 Mbit/s interface and a length of 2 - 1 for 2 Mbit/s interface, shall be used. In the case of
a SDH interface, a STM -1 test signal shall be defined.
The peak of the transmitter spectrum at the channel centre frequency, excluding any residual carrier, is
set to the 0 dB Spectrum Reference Level (SRL). The mask is measured with a transmit output power
equal to the nominal value and it shall be met in all ATPC conditions.
The mask does not include frequency tolerance.

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10
(7,5 MHz,+1 dB)
0
(10,5 MHz,-10 dB)
-10
-20
(12,5 MHz,-30 dB)
-30
Spectral power density
(22 MHz,-35 dB)
relative to carrier frequency
[dB]
-40
See note
-50
(30 MHz,-50 dB)
-60
-70
-80
0 5 10 15 20 25 30 35 40
Frequency from actual carrier frequency [MHz]
NOTE: The value of -50 dB shall be met up to 70 MHz for the 13 and 15 GHz bands and up to
68,75 MHz for 18 GHz band.
Figure 2: Spectral power density for 13 GHz, 15 GHz and 18 GHz
The spectrum analyser settings for measuring the RF spectrum mask detailed in figure 2 are shown
in table 4 below:
Table 4: Spectrum analyser settings
Parameter Setting
IF Bandwidth 100 kHz
Total sweep width 200 MHz
Total scan time Automatic
Video filter bandwidth 0,3 kHz
6.4 Spectral lines at the symbol rate
The RF spectrum mask shall not apply to the spectral lines at the symbol rate.
The power level of these spectral lines at a distance from the channel centre frequency equal
...