SIST EN 303 213-6-1 V1.2.1:2013
(Main)The present document applies to X-band radar sensors intended for the surveillance of airport surface movement traffic with the following characteristics:
- Utilizing modulated or unmodulated pulses.
- Transmitter Peak Envelope Power up to 100 kW.
- The transceiver-antenna connection is using a hollow metallic rectangular waveguide.
- The antenna is rotating, waveguide- based and passive.
- At the transceiver output an RF-circulator is used.
The present document covers only the essential requirements of article 3.2 of the R&TTE Directive [i.1]. NOTE 1: Since transceiver and antenna are hollow metallic rectangular waveguide based the frequency range for measurements that needs to be addressed covers 6,56 GHz to 26 GHz The lower limit of this frequency range is obtained as cut-off frequency of the combination of WR112/R84 taper section and a WR90/R100 Waveguide IEC 60153-2 [i.3]. The upper limit corresponds to the upper limit stated in ERC/Recommendation 74-01 [i.5]. NOTE 2: Since at the transceiver output an RF circulator is used, it is assumed that the transceiver characteristics
remain independent from the antenna. NOTE 3: According Article 5 of the ITU Radio Regulations [i.6] the band 9 000 MHz to 9 200 MHz is allocated to the Aeronautical Radionavigation Service on a primary basis and the band 9 300 MHz to 9 500 MHz is allocated to the Aeronautical Radionavigation Service on a secondary basis.
Napredni sistem za vodenje in nadzor gibanja po zemlji (A-SMGCS) - 6. del: Harmonizirani EN, ki zajema bistvene zahteve člena 3.2 direktive R&TTE za aktivno zaznavalo radarja za površinsko gibanje - 1. poddel: Zaznavala, ki delujejo v frekvenčnem pasu X (10,525 GHz), z impulznimi signali in oddajno močjo do 100 kW
Ta dokument velja za zaznavala radarja v frekvenčnem pasu X za nadzor prometa na letaliških površinah, ki ima naslednje značilnosti:
– Uporaba moduliranih ali nemoduliranih pulzov.
– Oddajnik Peak Envelope Power do 100 kW.
– Antena oddajno-sprejemne naprave uporablja votel pravokoten kovinski valovod.
– Antena se pasivno vrti glede na valovod.
– Na izhodu oddajno-sprejemne naprave je uporabljena radiofrekvenčna obtočna črpalka.
Ta dokument vključuje samo osnovne zahteve člena 3.2 direktive R&TTE [i.1]. OPOMBA 1: Ker sta oddajno-sprejemna naprava in antena votel kovinski pravokoten valovod, je frekvenčno območje za meritve od 6,56 do 26 GHz. Nižja spodnja vrednost tega frekvenčnega območja se dobi kot mejna frekvenca kombinacije zoženega dela obtočne črpalke WR112/R84 in valovoda IEC 60153-2 [i.3]. Zgornja meja ustreza zgornji meji, navedeni v priporočilu ERC 74-01 [i.5]. OPOMBA 2: Ker je na izhodu oddajno-sprejemne naprave uporabljena radiofrekvenčna obtočna črpalka, se predvideva, da so značilnosti oddajno-sprejemne naprave neodvisne od antene. OPOMBA 3: Glede na člen 5 Pravilnika o radiokomunikacijah Mednarodne telekomunikacijske zveze [i.6] je pas med 9000 in 9200 MHz namenjen zlasti aeronavtičnim radionavigacijskim službam, pas med 9300 in 9500 MHz pa je priložnostno namenjen aeronavtičnim radionavigacijskim službam.
General Information
Standards Content (sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.N:Advanced Surface Movement Guidance and Control System (A-SMGCS) - Part 6: Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive for deployed surface movement radar sensors - Sub-part 1: X-band sensors using pulsed signals and transmitting power up to 100 kW49.090On-board equipment and instruments03.220.50Air transportICS:Ta slovenski standard je istoveten z:EN 303 213-6-1 Version 1.2.1SIST EN 303 213-6-1 V1.2.1:2013en01-december-2013SIST EN 303 213-6-1 V1.2.1:2013SLOVENSKI
STANDARDSIST EN 303 213-6-1 V1.2.1:2013
ETSI EN 303 213-6-1 V1.2.1 (2013-11) Advanced Surface Movement Guidance and Control System (A-SMGCS); Part 6: Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive for deployed surface movement radar sensors; Sub-part 1: X-band sensors using pulsed signals and transmitting power up to 100 kW
Harmonized European Standard SIST EN 303 213-6-1 V1.2.1:2013ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)2
Reference REN/ERM-JTFEA-016 Keywords aeronautical, ATM, interoperability, regulation ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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© European Telecommunications Standards Institute 2013. All rights reserved.DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association. SIST EN 303 213-6-1 V1.2.1:2013
ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)3 Contents Intellectual Property Rights ................................................................................................................................ 5 Foreword ............................................................................................................................................................. 5 Introduction ........................................................................................................................................................ 6 1 Scope ........................................................................................................................................................ 7 2 References ................................................................................................................................................ 7 2.1 Normative references ......................................................................................................................................... 7 2.2 Informative references ........................................................................................................................................ 7 3 Definitions, symbols and abbreviations ................................................................................................... 8 3.1 Definitions .......................................................................................................................................................... 8 3.2 Symbols .............................................................................................................................................................. 8 3.3 Abbreviations ..................................................................................................................................................... 9 4 Technical requirements ............................................................................................................................ 9 4.1 Environmental profile ......................................................................................................................................... 9 4.2 Conformance requirements ................................................................................................................................ 9 4.2.1 Operating frequency ..................................................................................................................................... 9 4.2.1.1 Definition ................................................................................................................................................ 9 4.2.1.2 Limits .................................................................................................................................................... 10 4.2.1.3 Conformance ......................................................................................................................................... 10 4.2.2 Transmitter power ....................................................................................................................................... 10 4.2.2.1 Definition .............................................................................................................................................. 10 4.2.2.2 Limits .................................................................................................................................................... 10 4.2.2.3 Conformance ......................................................................................................................................... 10 4.2.3 Out-of-band emissions ................................................................................................................................ 10 4.2.3.1 Definition .............................................................................................................................................. 10 4.2.3.2 Limits .................................................................................................................................................... 11 4.2.3.3 Conformance ......................................................................................................................................... 12 4.2.4 Spurious emissions ..................................................................................................................................... 12 4.2.4.1 Definition .............................................................................................................................................. 12 4.2.4.2 Limits .................................................................................................................................................... 13 4.2.4.3 Conformance ......................................................................................................................................... 14 4.3 Receiver requirements ...................................................................................................................................... 14 4.3.1 Receiver Noise Figure ................................................................................................................................ 14 4.3.1.1 Limit ...................................................................................................................................................... 14 4.3.1.2 Conformance ......................................................................................................................................... 14 4.3.2 Receiver Selectivity .................................................................................................................................... 14 4.3.2.1 Limit ...................................................................................................................................................... 14 4.3.2.2 Conformance ......................................................................................................................................... 14 5 Testing for compliance with technical requirements .............................................................................. 14 5.1 Test conditions, power supply and ambient temperatures ................................................................................ 14 5.1.1 Standard operating mode of the radar equipment ....................................................................................... 14 5.2 Normal test conditions ...................................................................................................................................... 15 5.2.1 Introduction................................................................................................................................................. 15 5.2.2 Normal temperature and humidity .............................................................................................................. 15 5.2.3 Normal test power supply ........................................................................................................................... 15 5.3 Essential radio test suites .................................................................................................................................. 15 5.3.1 Operating frequency ................................................................................................................................... 15 5.3.2 Transmitter power ....................................................................................................................................... 15 5.3.3 Out-of-Band-emissions ............................................................................................................................... 16 5.3.4 Spurious emissions ..................................................................................................................................... 18 5.3.5 System Noise Figure ................................................................................................................................... 18 5.3.6 Receiver Selectivity .................................................................................................................................... 19 5.3.6.1 Receiver Out-of-Band selectivity .......................................................................................................... 19 5.3.6.2 Receiver spurious response rejection .................................................................................................... 20 SIST EN 303 213-6-1 V1.2.1:2013
ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)4 Annex A (normative): HS Requirements and conformance Test specifications Table (HS-RTT) ........................................................................................................ 21 Annex B (normative): Transmission power and unwanted emissions of radar systems with indirect methods ............................................................................................. 23 Annex C (informative): Bibliography ................................................................................................... 24 Annex D (informative): Change History .............................................................................................. 25 History .............................................................................................................................................................. 26
SIST EN 303 213-6-1 V1.2.1:2013ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)5 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Harmonized European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). The present document has been produced by ETSI in response to mandate M/405 issued from the European Commission under Directive 98/34/EC [i.9] as amended by Directive 98/48/EC [i.11]. The title and reference to the present document are intended to be included in the publication in the Official Journal of the European Union of titles and references of Harmonized Standard under the Directive 1999/5/EC [i.1]. See article 5.1 of Directive 1999/5/EC [i.1] for information on presumption of conformity and Harmonized Standards or parts thereof the references of which have been published in the Official Journal of the European Union. The requirements relevant to Directive 1999/5/EC [i.1] are summarized in annex A. The present document is part 6, sub-part 1 of a multi-part deliverable covering Advanced Surface Movement Guidance and Control System (A-SMGCS), as identified below: Part 1: "Community Specification for application under the Single European Sky Interoperability Regulation EC 552/2004 for A-SMGCS Level 1 including external interfaces"; Part 2: "Community Specification for application under the Single European Sky Interoperability Regulation EC 552/2004 for A-SMGCS Level 2 including external interfaces"; Part 3: "Community Specification for application under the Single European Sky Interoperability Regulation EC 552/2004 for a deployed cooperative sensor including its interfaces"; Part 4:
"Community Specification for application under the Single European Sky Interoperability Regulation EC 552/2004 for a deployed non-cooperative sensor including its interfaces"; Part 5: "Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive for multilateration equipment"; Part 6: "Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive for deployed surface movement radar sensors": Sub-part 1: "X-band sensors using pulsed signals and transmitting power up to 100 kW". NOTE: SMR systems using FM-CW signals may be covered by future sub-parts of this multi-part deliverable.
SIST EN 303 213-6-1 V1.2.1:2013ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)6 National transposition dates Date of adoption of this EN: 6 November 2013 Date of latest announcement of this EN (doa): 28 February 2014 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 August 2014 Date of withdrawal of any conflicting National Standard (dow): 31 August 2015
Introduction The present document is part of a set of standards developed by ETSI and is designed to fit in a modular structure to cover all radio and telecommunications terminal equipment within the scope of the R&TTE Directive [i.1]. The modular structure is shown in EG 201 399 [i.10]. The current version includes necessary changes due to updates in reference documents Recommendation ITU-R SM.1541-4 [i.8], ECC/Recommendation (02)05 [i.4] and ERC/Recommendation 74-01 [i.5] (essentially changes of Out-of-Band emission mask). SIST EN 303 213-6-1 V1.2.1:2013
ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)7 1 Scope The present document applies to X-band radar sensors intended for the surveillance of airport surface movement traffic with the following characteristics: • Utilizing modulated or unmodulated pulses. • Transmitter Peak Envelope Power up to 100 kW. • The transceiver-antenna connection is using a hollow metallic rectangular waveguide. • The antenna is rotating, waveguide- based and passive. • At the transceiver output an RF-circulator is used. The present document covers only the essential requirements of article 3.2 of the R&TTE Directive [i.1]. NOTE 1: Since transceiver and antenna are hollow metallic rectangular waveguide based the frequency range for measurements that needs to be addressed covers 6,56 GHz to 26 GHz The lower limit of this frequency range is obtained as cut-off frequency of the combination of WR112/R84 taper section and a WR90/R100 Waveguide IEC 60153-2 [i.3]. The upper limit corresponds to the upper limit stated in ERC/Recommendation 74-01 [i.5]. NOTE 2: Since at the transceiver output an RF circulator is used, it is assumed that the transceiver characteristics remain independent from the antenna. NOTE 3: According Article 5 of the ITU Radio Regulations [i.6] the band 9 000 MHz to 9 200 MHz is allocated to the Aeronautical Radionavigation Service on a primary basis and the band 9 300 MHz to 9 500 MHz is allocated to the Aeronautical Radionavigation Service on a secondary basis. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http://docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are necessary for the application of the present document. Not applicable. 2.2 Informative references The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] Directive 1999/5/EC of The European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity (R&TTE Directive). [i.2] Merrill I. Skolnik: "Radar Handbook", 2nd Edition, McGraw Hill publications. SIST EN 303 213-6-1 V1.2.1:2013
ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)8 [i.3] IEC 60153-2 (Edition 2.0, 1974): "Hollow metallic waveguides. Part 2: Relevant specifications for ordinary rectangular waveguides". [i.4] ECC/Recommendation (02)05 (2012): "Unwanted emissions". [i.5] ERC/Recommendation 74-01 (2011): "Unwanted emissions in the spurious domain". [i.6] ITU Radio Regulations (2012). [i.7] Recommendation ITU-R M.1177-4 (2011): "Techniques for measurement of unwanted emissions of radar systems". [i.8] Recommendation ITU-R SM.1541-4 (2011): "Unwanted emissions in the out-of-band domain". [i.9] Directive 98/34/EC of the European Parliament and of the Council laying down a procedure for the provision of information in the field of technical standards and regulations and of rules on information society services. [i.10] ETSI EG 201 399: "Electromagnetic compatibility and Radio spectrum Matters (ERM); A guide to the production of Harmonized Standards for application under the R&TTE Directive". [i.11] Directive 98/48/EC of the European Parliament and of the Council of 20 July 1998 amending Directive 98/34/EC laying down a procedure for the provision of information in the field of technical standards and regulations. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: necessary bandwidth: width of the frequency band which is just sufficient to ensure the transmission of information at the rate and with the quality required under specified conditions for a given class of emission NOTE: This definition is taken from ITU Radio Regulation No. 1.152 [i.6]. occupied bandwidth: width of a frequency band such that, below the lower and above the upper frequency limits, the mean powers emitted are each equal to a specified percentage β/2 of the total mean power of a given emission NOTE 1: This definition is taken from ITU Radio Regulation No. 1.153 [i.6]. NOTE 2: Unless otherwise specified in an Recommendation ITU-R for the appropriate class of emission, the value of β/2 should be taken as 0,5 %. peak envelope power: average power supplied to the antenna transmission line by a transmitter during one radio frequency cycle at the crest of the modulation envelope taken under normal operating conditions NOTE: This definition is taken from ITU Radio Regulation No. 1.157 [i.6]). pulse duration: time between the 50 % amplitude (voltage) points pulse rise time: time taken for the leading edge of the pulse to increase from 10 % to 90 % of the maximum amplitude (voltage) 3.2 Symbols For the purposes of the present document, the following symbols apply: B-40 -40 dB bandwidth BC Chirp bandwidth BN Necessary bandwidth SIST EN 303 213-6-1 V1.2.1:2013
ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)9 Bres 3 dB resolution bandwidth of transceiver dBpp dB with respect to peak power Dno spur Detectability Factor (function of PD & Pfa)
k Boltzmann's constant NFsys Noise Figure of the system PD Probability of detection
PEP Peak Envelope Power Pfa Probability of false detectionPt Pulse power of transmission t Time tp Pulse duration
tr Pulse rise time T0 Temperature in Kelvin TC Chirp length in sec. λ Wavelength 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: AC Alternating Current FM Frequency Modulated FM-CW Frequency Modulated Continuous Wave IEC International Electrotechnical Commission ITU-R International Telecommunication Union - Radiocommunication LNA Low Noise Amplifier MDS Minimum Detectable Signal OoB Out-of-Band R&TTE Radio and Telecommunications Terminal Equipment RF Radio Frequency SMR Surface Movement Radar 4 Technical requirements 4.1 Environmental profile Tests defined in the present document shall be carried out at representative points within the boundary limits of the declared operational environmental profile which, as a minimum, shall be that specified in the test conditions contained in the present document. As technical performance varies subject to environmental conditions, tests shall be carried out under a sufficient variety of environmental conditions as specified in the present document to give confidence of compliance for the affected technical requirements (which shall also be within the boundary limits of the declared operational environmental profile). 4.2 Conformance requirements 4.2.1 Operating frequency 4.2.1.1 Definition The transmitter of a pulsed radar produces microwave pulses, which cause a broad frequency spectrum, depending on the pulse duration. SIST EN 303 213-6-1 V1.2.1:2013
ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)10 The operating frequency is to be understood as the frequency of the microwave emission during the transmitting pulse and is represented by the spectral line of highest amplitude. NOTE: It is only practicable to indicate an operating frequency for radars with unmodulated pulses. In this case a limit for the frequency tolerance is specified. For radars with modulated pulses such a limit is not applicable. In any case the occupied bandwidth is completely contained in the allocated frequency band(s). 4.2.1.2 Limits The limit for the frequency tolerance for SMR applying unmodulated pulses is ±30 MHz. For all radar types covered by the present documents the occupied bandwidth of the signal shall be contained completely within the frequency ranges 9 000 MHz to 9 200 MHz or 9 300 MHz to 9 500 MHz in all operating modes. 4.2.1.3 Conformance Conformance tests as defined in clause 5.3.1 shall be carried out. 4.2.2 Transmitter power 4.2.2.1 Definition The transmitter power shall be referenced with respect to the output port of the radar transmitter. The transmitter power of a pulse radar is understood as the peak value of the transmitter pulse power during the transmission pulse (PEP). If the transmitter power varies over the azimuth, the highest PEP over at least one rotation period has to be used. 4.2.2.2 Limits The transmitter power shall be as specified by the manufacturer with an accuracy of at least ±1 dB. The peak power value shall not exceed 100 kW (50 dBW). 4.2.2.3 Conformance Conformance tests as defined in clause 5.3.2 shall be carried out. 4.2.3 Out-of-band emissions 4.2.3.1 Definition An important parameter of the Out-of-Band (OoB) emissions mask of the radar is the -40 dB bandwidth. Annex 8 of Recommendation ITU-R SM.1541-4 [i.8] specifies the -40 dB bandwidth specified for various types of waveforms (e.g. pulsed radar signals). With the following assumptions which apply to most airport surface movement radars these specifications can be further simplified: • the radar is operating in the bands 9 000 MHz to 9 200 MHz or 9 300 MHz to 9 500 MHz; • the pulse power is below 100 kW; • the pulse rise time tr is greater than 0,0094·t, where t is the pulse duration. With the aforementioned assumptions the -40 dB bandwidth (B-40) for primary non-FM pulse radars can be determined as follows:
rttB×=−6,740 SIST EN 303 213-6-1 V1.2.1:2013ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)11 Where: t is the pulse duration tr is the rise time in the case of a trapezoidal pulse NOTE: For typical values of a pulse duration of t = 50 ns and a rise time of tr = 10 ns the formula above yields a -40 dB bandwidth value of 340 MHz. For radars with multiple pulse waveforms, the B-40 bandwidth should be calculated for each individual pulse type and the maximum B-40 bandwidth obtained shall be used to establish the shape of the emission mask. For radars with a highly asymmetrical spectrum, the B-40 dB bandwidth can be offset from the frequency of maximum emission level, but the necessary bandwidth, BN and preferably the overall occupied bandwidth should be contained completely within the allocated band as stipulated in section 4 of annex 8 of Recommendation ITU-R SM.1541-4 [i.8]. The application of this rule is illustrated in figure 1.
Figure 1: Application of the offset-rule for the Out-of-Band emission limit mask The Out-of-Band emission limits and the spurious emission limits are defined based on the -40 dB bandwidth. 4.2.3.2 Limits NOTE 1: In a future version of the present document more stringent requirements for OoB Emissions based on the design objective case in ECC/Recommendation (02)05 [i.4] (the solid line in figure A2.1 c) of [i.4] with a slope of 40 dB/decade) may need to be considered. The maximum radiated Out-of-Band emission power level shall not exceed the limits stated in table 1 and the corresponding mask depicted in figure 2. The roll-off of the OoB-mask beyond the -40 dB bandwidth, B-40 in relation to B-40 is specified as follows: • The mask has a roll-off at 20 dB/dec from the calculated (identified) B-40 bandwidth to a level of -60 dBpp. The mask then continues to roll-off at 60 dB/dec to a spurious emission limit level of -100 dBpp. NOTE 2: This mask corresponds to the limit specification in Annex 2 of i.e. the dashed line in figure A2.1c of ECC/Recommendation (02)05 [i.4]. SIST EN 303 213-6-1 V1.2.1:2013
ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)12 • If an absolute limit of -30 dBm can be more easily achieved this limit applies in lieu of -100 dBpp. NOTE 3: ERC/Recommendation 74-01 [i.5] stipulates in its table 1 for fixed radars a spurious emission limit in the reference bandwidth of "-30 dBm or 100 dB, whichever is less stringent". Table 1: Limits for unwanted emissions Frequency offset
relative to B-40 Limit dBpp SlopedB/decade 0 to 0,5 0 0 0,5 -40 -∞ 0,5 to 5 -40 to -70 -30 5 to 15,8 -70 to -100/-30 dBm -60 15,8 to ∞ -100/-30 dBm 0
Figure 2: Out-of-Band emission limit masks 4.2.3.3 Conformance Conformance tests as defined in clause 5.3.3 shall be carried out. 4.2.4 Spurious emissions 4.2.4.1 Definition Spurious emissions are defined as the entity of all emissions in the frequency range of the cut-off frequency 6,56 GHz of the waveguide section to 26 GHz, but outside the OoB-boundaries. SIST EN 303 213-6-1 V1.2.1:2013
ETSI ETSI EN 303 213-6-1 V1.2.1 (2013-11)13 NOTE: The lower limit of this frequency range of 6,56 GHz is obtained as cut-off frequency of the combination of WR112/R84 taper section and a WR90/R100 Waveguide as defined in IEC 60153-2 [i.3]. The upper limit corresponds to the upper limit stated in ERC/Recommendation 74-01 [i.5]. They include: • harmonic emissions (whole multiples of the operating frequency); • parasitic emissions (independent, accidentally); • intermodulation (between oscillator- and operation frequency or between oscillator and harmonics); • emissions caused by frequency conversions. The boundaries between OoB domain and the spurious domain are where the OoB limit mask specified in ECC/Recommendation (02)05 [i.4] reach the spurious emission limit of -100 dBpp according to ERC/Recommendation 74-0
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