ETSI ETS 300 198 ed.1 (1994-04)

Transmission and Multiplexing (TM); Parameters for radio relay systems for the transmission of digital signals and analogue video signals operating at 23 GHz

DE/TM-04003

Prenos in multipleksiranje (TM) - Parametri za radiorelejne sisteme za prenos digitalnih signalov in analognih video signalov, ki delujejo v frekvenčnem območju 23 GHz

General Information

• Status: Published
• Publication Date: 13-Apr-1994
• 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 300 198 E1:2005 - Transmission and Multiplexing (TM); Parameters for radio relay systems for the transmission of digital signals and analogue video signals operating at 23 GHz

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 198 E1:2005
01-april-2005
3UHQRVLQPXOWLSOHNVLUDQMH703DUDPHWUL]DUDGLRUHOHMQHVLVWHPH]DSUHQRV
GLJLWDOQLKVLJQDORYLQDQDORJQLKYLGHRVLJQDORYNLGHOXMHMRYIUHNYHQþQHPREPRþMX
*+]
Transmission and Multiplexing (TM); Parameters for radio relay systems for the
transmission of digital signals and analogue video signals operating at 23 GHz
Ta slovenski standard je istoveten z: ETS 300 198 Edition 1
ICS:
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
SIST ETS 300 198 E1:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 198 E1:2005

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SIST ETS 300 198 E1:2005
EUROPEAN ETS 300 198
TELECOMMUNICATION April 1994
STANDARD
Source: ETSI TC-TM Reference: DE/TM-04003
ICS: 33.080
Transmission, radio, video
Key words:
Transmission and Multiplexing (TM);
Parameters for radio relay systems for the transmission of
digital signals and analogue video signals operating at 23 GHz
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - [e-mail]
X.400: Internet:
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 1994. All rights reserved.
New presentation - see History box

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ETS 300 198: April 1994
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 300 198: April 1994
Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Abbreviations.8
4 General characteristics (digital and analogue).8
4.1 Frequency bands and channel arrangements .8
4.1.1 Frequency band.8
4.1.2 Co-polar channel spacing for systems operating on different antennas .8
4.1.3 Transmit/receive centre gap.8
4.1.4 Transmit/receive duplex frequency separation .9
4.2 Performance prediction and objectives (for reference only) .9
4.3 Compatibility requirements between systems.9
4.4 Types of installation .9
4.4.1 Environmental conditions .9
4.4.1.1 Equipment within weather protected locations .9
4.4.1.2 Equipment for non-weather protected locations.10
4.4.2 Electromagnetic compatibility.10
4.5 System diagram.11
4.6 General characteristics .11
4.7 Telecommunications Management Network (TMN) interface .11
4.8 Branching / feeder / antenna requirements .11
4.9 Mechanical requirement .13
4.10 Power supply.13
4.11 Safety considerations.14
5 Parameters for digital systems.14
5.1 Transmission capacity .14
5.2 Applications.14
5.3 Baseband parameters .14
5.3.1 2 Mbit/s to 140 Mbit/s baseband interfaces.14
5.3.2 Synchronous Digital Hierarchy (SDH) baseband interface .14
5.4 Transmitter characteristics .14
5.4.1 Tx power range .14
5.4.2 Transmitter output power tolerance .14
5.4.3 RF spectrum mask.14
5.4.4 Spurious emissions .20
5.4.5 RF frequency tolerance .20
5.5 Receiver characteristics.20
5.5.1 Input level range.20
5.5.2 Spurious emissions .20
5.6 System performance.20
5.6.1 BER performance.20
5.6.2 Equipment background BER.21
5.6.3 Interference sensitivity.22
5.6.4 Distortion sensitivity.22
6 Parameters for wide band analogue systems .23
6.1 Transmit/receive capacity .23
6.2 Applications.23
6.3 Baseband parameters .23
6.3.1 Video interfaces.23
6.3.2 Audio interface (if applicable).23
6.3.3 Digital interface (if applicable) .23

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ETS 300 198: April 1994
6.3.4 IF interface (if applicable) . 23
6.3.5 Baseband performance . 24
6.4 Transmitter characteristics. 24
6.4.1 Transmitter power range . 24
6.4.2 Transmitter output power tolerance. 24
6.4.3 Radiated spectrum. 25
6.4.3.1 Spectrum masks . 25
6.4.3.2 Frequency deviation. 26
6.4.4 Spurious emissions. 27
6.4.5 RF frequency tolerance . 27
6.5 Receiver characteristics . 27
6.5.1 Input level range . 27
6.5.2 Spurious emissions. 27
6.5.3 Noise figure. 27
6.6 Transmit/receive performance . 28
6.6.1 Receiver threshold. 28
6.6.2 Interference sensitivity . 28
Annex A (informative): Bibliography . 29
History. 30

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ETS 300 198: April 1994
Foreword
This European Telecommunication Standard (ETS) has been produced by the Transmission and
Multiplexing (TM) Technical Committee of the European Telecommunications Standards Institute (ETSI).
This ETS specifies the minimum performance parameters for radio equipment operating in the frequency
range 21,2 GHz to 23,6 GHz as specified in Clause 1.
Annex A provides details of documents which are informative references to this ETS.
Other standards cover radio communications equipment not listed in the scope.

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Blank page

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1 Scope
This European Telecommunication Standard (ETS) covers the minimum performance parameters for
terrestrial fixed services radio communications equipment as given below, in the frequency band
21,2 GHz to 23,6 GHz.
This ETS specifies the performance criteria for the different equipment groups.
The equipment groups are:
- digital signals;
- analogue video signals.
2 Normative references
This ETS incorporates by dated and undated reference, provisions from other publications. These
normative 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 ETS only when incorporated in it by amendment or revision. For undated references the latest
edition of the publication referred to applies.
[1] CCIR Recommendation 637 (1991): "Radio-frequency channel arrangements
for analogue and digital radio-relay systems in the 21,1 to 23,6 GHz frequency
band".
[2] ETS 300 019: "Equipment Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment Part 1-1: Classification
of environmental conditions Storage".
[3] prETS 300 132-1: "Equipment Engineering (EE); Power supply interface at the
input to telecommunications equipments Part 1: Interfaces operated by
alternating current "AC"". (DE/EE-02001.1)
[4] prETS 300 132-2: "Equipment Engineering (EE); Power supply interface at the
input to telecommunications equipments Part 2: Interfaces operated by direct
current "DC"". (DE/EE-02001.2)
[5] CCITT Recommendation G.703 (1991): "Physical/electrical characteristics of
hierarchical digital interfaces".
[6] CCITT Recommendation G.707 (1991): "Synchronous digital hierarchy bit
rates".
[7] CCITT Recommendation G.708 (1991): "Network node interface for the
synchronous digital hierarchy".
[8] CCITT Recommendation G.709 (1991): "Synchronous multiplexing structure".
[9] CCITT Recommendation G.781 (1990): "Structure of Recommendations on
multiplexing equipment for synchronous digital hierarchy (SDH)".
[10] CCITT Recommendation G.782 (1990): "Types and general characteristics of
synchronous digital hierarchy (SDH) multiplexing equipment".
[11] CCITT Recommendation G.783 (1990): "Characteristics of synchronous digital
hierarchy (SDH) multiplexing equipment functional blocks".
[12] CCITT Recommendation G.784 (1990): "Synchronous digital hierarchy (SDH)
management".

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ETS 300 198: April 1994
[13] CCIR Recommendation 403: "Intermediate-frequency characteristics for the
interconnection of analogue radio-relay systems".
[14] CCIR Recommendation 696: "Error performance and availability objectives for
hypothetical reference digital sections utilising digital radio-relay systems
forming part or all of the medium grade portion of an ISDN connection".
[15] CCIR Recommendation 697: "Error performance and availability objectives for
the local grade portion at each end of an ISDN utilising digital radio-relay
systems".
3 Abbreviations
For the purposes of this ETS, the following abbreviations apply.
AC Alternating Current
BER Bit Error Ratio
C/I Carrier/Interference
DC Direct Current
RF Radio Frequency
RSL Receive Signal Level
SDH Synchronous Digital Hierarchy
TMN Telecommunications Management Network
4 General characteristics (digital and analogue)
4.1 Frequency bands and channel arrangements
4.1.1 Frequency band
a) Frequency band shall be 21,2 GHz to 23,6 GHz.
b) Channel plan: the channel plan shall be in accordance with CCIR Recommendation 637 [1] with a
basic raster of 3,5 MHz.
4.1.2 Co-polar channel spacing for systems operating on different antennas
For systems operating on the same antenna, see subclause 4.3, a).
Table 1: Digital systems
Minimum bit rate (Mbit/s) 2 2 2 x 2 8 8 34 34 140/155
Channel spacing (MHz) 3,5 7 3,5 7 14 28 56 112
NOTE: 34 Mbit/s bit rate in 56 MHz channel spacing is used for transportable, temporary and
emergency links.
Table 2: Analogue systems
Video baseband (MHz) <3,5 <6 <10 <14
28 56 56 56
Channel spacing (MHz)
4.1.3 Transmit/receive centre gap
The centre gap shall be taken as a multiple of the basic raster distance of 3,5 MHz, and shall not be less
than 56 MHz.

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4.1.4 Transmit/receive duplex frequency separation
The transmitter receiver duplex frequency separation shall not be less than 252 MHz and should be in
accordance with local administrations frequency planning rules.
4.2 Performance prediction and objectives (for reference only)
Systems considered in this ETS should be able to meet CCIR medium grade performance objectives
given in CCIR Recommendation 696 [14] Class 4 and local grade performance objectives of CCIR
Recommendation 697 [15].
The dominant fading mechanism is rain attenuation; performance prediction methods should be based on
the latest issue of the following CCIR Recommendations:
Recommendation 453: "The formula for the radio refractive index";
Recommendation 530: "Propogation data and prediction methods required for the design of terrestrial
line-of-sight systems";
Recommendation 837: "Characteristics of precipitation for propogation modelling";
Recommendation 838: "Specific attenuation model for rain for use in prediction methods";
Recommendation 840: "Attenuation due to clouds and fog".
4.3 Compatibility requirements between systems
a) It is envisaged that systems will normally be required to operate on common hops using either
separate antennas or on separate polarisation's on the same antenna.
b) There should be no requirement to operate transmitting equipment from one manufacturer with
receiving equipment from another, or to multiplex different manufacturers equipment on the same
polarisation of the same antenna.
4.4 Types of installation
The equipment may comprise both radio relay units in weather protected locations and outdoor units with
the Radio Frequency (RF) assemblies likely to be located close to the antenna in order to minimise feeder
losses.
4.4.1 Environmental conditions
The equipment shall be required to meet either the environmental conditions set out in ETS 300 019 [2],
which defines weather protected and non-weather protected locations, classes and test severities, or one
of the conditions listed in subclause 4.4.1.2.
4.4.1.1 Equipment within weather protected locations
The most important climatic parameters for the five classes are given in table 3.

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Table 3
Climatic class 3.1 3.2 3.3 3.4 3.5
High air temperature (°°C) + 40 + 45 + 55 + 70 + 40
+ 5 - 5 - 25 - 40 - 40
Low air temperature (°°C)
High relative humidity (%) 85 95 100 100 100
5 5 10 10 10
Low relative humidity (%)
Air movement (m/s) 55 55 5
2
Solar radiation (W/m ) 700 700 1 120 1 120 -
Climatic classes 3.1 and 3.2 apply to equipment designed for temperature controlled locations or partially
temperature controlled locations respectively. This type of equipment is generally described as "indoor"
equipment.
The use of radio-relay equipment covering climatic classes 3.3 (non-temperature controlled locations), 3.4
(sites with heat trap) and 3.5 (sheltered locations) is not mandatory.
4.4.1.2 Equipment for non-weather protected locations
This type of equipment is generally described as "outdoor" equipment. Class 4.1 or extended class 4.1 E
parameters should be applied. Class 4.1 applies to many of the ETSI countries and class 4.1 E applies to
them all. The most important parameter values are given in table 4.
Table 4
Climatic class 4.1 4.1E
+ 40 + 45
High air temperature (°°C)
- 33 - 45
Low air temperature (°°C)
High relative humidity (%) 100 100
Low relative humidity (%) 15 8
50 50
Air movement (m/s)
2
Solar radiation (W/m ) 1 120 1 120
It should be noted that radio cabinets supplied with a system will give their own "weather protection"
including full protection against precipitation and wind. Climatic classes 3.3, 3.4 and 3.5
(subclause 4.4.1.1) may, therefore, also be applicable for "outdoor" locations.
Some ETSI members may also decide to apply one of the non-standard specifications given in table 5.
Table 5
+ 40 + 50
High air temperature (°°C)
- 20 - 30
Low air temperature (°°C)
High relative humidity (%) 90 90
Low relative humidity (%) 55
50 50
Air movement (m/s)
2
Solar radiation (W/m ) 1 120 1 120
4.4.2 Electromagnetic compatibility
Under study.

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4.5 System diagram
The system diagram is shown in figure 1, as follows:
Z' A' B' C' D'
Branching
Transmitter RF Tx Filter
Feeder
Network*
D C B A Z
Branching
Feeder RF Rx Filter Receiver
Network*
NOTE 1: For the purpose of defining the measurement points, the branching network does not
include a hybrid.
NOTE 2: Points B and C, B' and C' may coincide.
Figure 1: System diagram
4.6 General characteristics
The following characteristics are desirable:
- tuning facilities;
- flexibility for repeated installation;
- wayside traffic facilities;
- transmitter identification;
- maintenance facilities;
- performance monitoring facilities.
4.7 Telecommunications Management Network (TMN) interface
A TMN interface required by a user should be in accordance with CCITT Recommendations G.784 [12]
and G.773.
4.8 Branching / feeder / antenna requirements
a) Three antenna radiation pattern envelopes are given in figures 2 to 4. Any of these may be chosen
according to local licensing and interference requirements.
b) Antenna flange/equipment feeder flange. When flanges are required, IEC type UBR/PBR 220
should be used.

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25
20
15
Co-polarised response
12
10
5
0
0
- 5
- 7
- 10
- 15
Cross-polarised response
- 20
- 25
- 30
- 35
510 50
0 20 40 60 80 100 120 140 160 180
Angle of azimuth relative to main beam (+/- degrees)
Figure 2: Antenna radiation pattern for 23 GHz systems (under test conditions)
25
20
15
10
Co-polarised response
5
0
- 5
- 10
- 15
- 20
- 23
- 25
Cross-polarised response
- 30
- 35
510 50
0 20 40 60 80 100 120 140 160 180
Angle of azimuth relative to main beam (+/- degrees)
Figure 3: Antenna radiation pattern for 23 GHz systems (under test conditions)
Gain relative to an isotropic radiator (dBi)
Gain relative to an isotropic radiator (dBi)

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25
20
15
10
Co-polarised response
5
0
- 5
- 10
- 15
- 17
- 20
Cross-polarised response
- 25
- 30
- 35
510 15 70
20 40 60 80 100 120 140 160 180
0
Angle of azimuth relative to main beam (+/- degrees)
Figure 4: Antenna radiation pattern for 23 GHz systems (under test conditions)
4.9 Mechanical requirement
The following parameters should be taken into account in the design of equipment incorporating an
external unit:
a) maximum weight of external unit;
b) size of external unit for wind loading considerations;
c) maximum weight of replaceable units;
d) ease of access to replaceable units.
4.10 Power supply
The equipment shall operate from a power supply within the ranges specified in ETS 300 132-1 [3] and
ETS 300 132-2 [4].
ETS 300 132-1 [3] and ETS 300 132-2 [4] specify the tolerances as given below:
- for 48 V DC nominal: 40,5 . 57 V DC;
- for 60 V DC nominal: 50 . 72 V DC;
- for 230 V AC nominal: 207 . 253 V AC/50 Hz ± 2 Hz.
For DC systems, the positive pole of the battery should be earthed.
NOTE: Some countries may require to use a primary supply of 24 V DC.
Gain relative to an isotropic radiator (dBi)

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4.11 Safety considerations
Maximum radiated power density under normal operating conditions should be in accordance with current
world health organisation figures.
5 Parameters for digital systems
5.1 Transmission capacity
BIT RATES: 2 Mbit/s, 8 Mbit/s, 34 Mbit/s, 140 Mbit/s, 155 Mbit/s (STM-1). System rates
configured as n-times 2 Mbit/s are also considered.
5.2 Applications
2 Mbit/s - 155 Mbit/s point-to-point local and regional networks, mobile base station connections,
subscriber access links (including transportable and off-shore use).
5.3 Baseband parameters
5.3.1 2 Mbit/s to 140 Mbit/s baseband interfaces
Baseband interfaces shall be in accordance with one of the applicable CCITT interfaces. Additional
service channels or wayside traffic are not considered in this ETS.
5.3.2 Synchronous Digital Hierarchy (SDH) baseband interface
In accordance with CCITT Recommendations G.703 [5], G.707 [6], G.708 [7], G.709 [8], G.781 [9],
G.782 [10], G.783 [11] and G.784 [12] with possible simplifications.
NOTE: This is under study in ETSI STCs TM3 and TM4.
5.4 Transmitter characteristics
5.4.1 Tx power range
Maximum output power shall be up to 1 Watt at point C' of the system diagram (see figure 1).
5.4.2 Transmitter output power tolerance
The output power tolerance shall be within:
± 3 dB: classes 3.3 to 3.5 (as defined in subclause 4.4.1.1) and all classes as defined in
subclause 4.4.1.2.
± 2 dB: classes 3.1 and 3.2 (as defined in subclause 4.4.1.1).
5.4.3 RF spectrum mask
The equipment shall comply with the appropriate digital RF power spectrum mask from those given in
figures 5 to 12. The 0 dB level shown on the spectrum masks relates to the peak of the modulated
spectrum disregarding residual carrier. All spectrum masks include a ± 20 ppm allowance for frequency
stability.
NOTE: Spectrum analyser settings for RF power spectrum measurements should be as given
in table 6.

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0
- 10
- 18
- 20
- 30
- 40
- 45
- 50
- 60
3 4,75 6,25 8,5
0 2 4 6 8 10
Frequency from nominal carrier frequency (MHz)
Figure 5: Limits of spectral power density for minimum system rate of 2 Mbit/s
(7 MHz channel spacing - referred to nominal centre frequency (fo))
0
- 10
- 20
- 23
- 30
- 40
- 45
- 50
- 60
1,4 2,8 3,4 7
0 2 4 6 8 10
Frequency from nominal carrier frequency (MHz)
Figure 6: Limits of spectral power density for minimum system rate of 2x2 Mbit/s
(3,5 MHz channel spacing - referred to nominal centre frequency (fo))
Transmitter spectral power density (dB)
Transmitter spectral power density (dB)

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0
- 10
- 18
- 20
- 30
- 40
- 45
- 50
- 60
1,25 2,125 2,875
0 1 2 3 4 5
Frequency from nominal carrier frequency (MHz)
Figure 7: Limits of spectral power density for minimum system rate of 2 Mbit/s
(3,5 MHz channel spacing - referred to nominal centre frequency (fo) )
0
- 10
- 18
- 20
- 30
- 40
- 45
- 50
- 60
5,5 9 12 16,5
0 5 10 15 20 25
Frequency from nominal carrier frequency (MHz)
Figure 8: Limits of spectral power density for minimum system rate of 8 Mbit/s
(14 MHz channel spacing - referred to nominal centre frequency (fo))
Transmitter spectral pow er density (dB)
Transmitter spectral power density (dB)

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0
- 10
- 20
- 23
- 30
- 40
- 45
- 50
- 60
2,8 5,6 6,8 14
0 5 10 15 20
Frequency from nominal carrier frequency (MHz)
Figure 9: Limits of spectral power density for minimum system rate of 8 Mbit/s
(7 MHz channel spacing - referred to nominal centre frequency (fo))
Transmitter spectral pow er density (dB)

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0
- 10
- 20
- 30
- 40
- 45
- 50
- 60
10,5 18 24,5 35,5
0 10 20 30 40 50
Frequency from nominal carrier frequency (MHz)
Figure 10: Limits of spectral power density for minimum system rate of 34 Mbit/s
(28 MHz channel spacing - referred to nominal centre frequency (fo))
0
- 10
- 20
- 25
- 30
- 40
- 45
- 50
- 60
10,5
22
0 10 20 30 40 50 60 70 80 90 100
Frequency from nominal carrier frequency (MHz)
(mask includes an allowance for both long and short term frequency tolerance)
Figure 11: Limits of spectral power density for minimum system rate of 34 Mbit/s
(56 MHz channel spacing - referred to nominal centre frequency (fo))
Transmitter spectral power density (dB)
Transmitter spectral power density (dB)

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0
- 10
- 20
- 25
- 30
- 40
- 45
- 50
- 60
45 78 125
0 40 80 120 160 200
Frequency from nominal carrier frequency (MHz)
Figure 12: Limits of spectral power density for minimum systems rate of 140/155 Mbit/s
(referred to nominal centre frequency (fo))
Table 6
Channel spacing (MHz) 3,5 7 142856 112
30 30 30 100 100 300
IF bandwidth (kHz)
Total sweep width (MHz) 20 50 100 200 200 500
Total scan time (s) 20 20 50 20 20 20
NOTE: The video filter bandwidth = 0,3 kHz.
Transmitter spectral power density (dB)

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5.4.4 Spurious emissions
The frequency range in which the spurious emissions specifications apply is 30 MHz to 55 GHz. The limit
values measured at point C' are:
30 MHz to 21,2 GHz - 90 dBW;
21,2 GHz to 55 GHz - 60 dBW.
NOTE 1: Spurious emissions are emissions at frequencies which are outside the necessary
bandwidth and the level of which may be reduced without affecting the corresponding
transmission of information. Spurious emissions include harmonic emissions, parasitic
emissions, intermodulation products and frequency conversion products, but exclude
emissions which result from the modulation process. The necessary bandwidth is
defined as twice the transmitted symbol rate.
NOTE 2: The lower frequency limit for type testing of spurious emission and received spurious
response rejection shall be half the waveguide cut-off fre
...