TELECOMMUNICATIONS STANDARD ADVISORY tel_ .6. Radiocommunications apparatus covered by the Order

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  • For discussion only TSAC Paper No. 7/2005

    TSAC Paper No. 7/2005January 2005

    Page 1


    Revision to HKTA 1035Performance Specification for Low Power Device

    HKTA 1035


    This paper proposes the adoption of Issue 3 of the HKTA 1035specification, entitled Performance Specification for Low Power Device, wherenew frequency bands are to be added for model flying aircraft apparatus andautomotive radar systems.


    2. Due to rapid technological advancement and market developments, thereis a strong demand for the use of new radiocommunications equipment on alicence-exempted basis. Therefore, it is considered appropriate to exempt somenew apparatus operating within the new frequency bands under theTelecommunications (Telecommunications Apparatus)(Exemption from Licensing)Order (Order).

    3. There is a demand for frequencies for air modelling from the modelcontrol aircraft hobbyists in Hong Kong. It is noted that other countriesspectrum regulators, such as those in the USA, Canada, Australia and mostEuropean countries, have already adopted frequencies in the 35 MHz, 40 MHzand 72 MHz for air modelling on a licence-exempted basis. It may be suitable toallocate these bands for air modelling in Hong Kong as well.

    4. In Europe, Japan and the USA, the 76 77 GHz band has been allocatedfor automotive radar systems. These radar systems are devices that can detectconditions within 100 metres of a vehicle using radio waves and their mainapplication is to improve vehicle safety. It is envisaged that the use of theseautomotive radar systems in the said band will become popular in Hong Kong.

  • For discussion only TSAC Paper No. 7/2005

    TSAC Paper No. 7/2005January 2005

    Page 2

    Summary of the Proposed Revisions to HKTA 1035 Specification

    5. The draft issue 3 of HKTA 1035 specification is given in Annex 1 to thispaper. The proposed revisions are summarised below which consist of newfrequency bands for exemption :

    Frequency Band Application35.145 35.225 MHz40.66 40.70 MHz72.00 72.02 MHz72.12 72.14 MHz72.16 72.22 MHz72.26 72.28 MHz

    Model control aircraft

    76 77 GHz Automotive radar system

    Certification Requirement

    6. Radiocommunications apparatus covered by the Order is classified underVoluntary Certification Scheme (VCS) of the Hong Kong TelecommunicationsEquipment Evaluation and Certification (HKTEC) Scheme.

    Consultation in NSP-WG

    7. The Issue 3 of HKTA 1035 specification had been discussed in the NSP-WG meeting and members were supportive of the adoption by the TA.


    8. It is recommended that Issue 3 of HKTA 1035 specification in Annex 1 tothis paper be adopted by the TA. The revised specification should take effect afteramendment of the Order is completed tentatively in early 2005.

    Advice Sought

    9. Members are invited to consider the recommendation in paragraph 8 andto give comments on the revised specification of Issue 3 of HKTA 1035.

  • For discussion only TSAC Paper No. 7/2005

    TSAC Paper No. 7/2005January 2005

    Page 3

    Office of the Telecommunications AuthorityJanuary 2005

  • Annex 1 to TSAC Paper No. 7/2005HKTA 1035ISSUE 23 DRAFT FEBRUARY

    2003JANUARY 2005





  • HKTA 1035 ISSUE 3 Draft 12 Page iJANUARY 2005FEBRUARY 2003


    1. This specification is prescribed under section 32D of the TelecommunicationsOrdinance (Cap 106) (the Ordinance) to set out the technical and evaluationrequirements for low power device (LPD). LPD generally refers toradiocommunications apparatus that transmits in assigned frequency bands at a lowpower level, normally 100 mW or less, as covered by the Telecommunications(Telecommunications Apparatus)(Exemption from Licensing) Order (the Order).

    2. Under section 39 of the Ordinance, a person is exempted from the obligation to hold alicence under the Ordinance so long as the conditions set out in the Order are satisfied.Radiocommunications apparatus falling into the scope of this specification, unlesscovered by other specification with more specific scope, shall meet the requirementsstipulated to fulfil the conditions of the Order.

    3. It is the responsibility of the suppliers to ensure that their LPDs comply with thisspecification. Compliance with this specification should be determined inaccordance with the method of measurement contained in Annex 1 of thisspecification as far as possible. Where a test method specified in this specificationcannot be followed, an alternatively appropriate method may be used. Suppliers mayseek advice from the Telecommunications Authority (TA) if necessary.

    4. At present, the Office of the Telecommunications Authority (OFTA) operates a HongKong Telecommunications Equipment Evaluation and Certification (HKTEC)Scheme. Details of the HKTEC Scheme can be found in the information note OFTAI 421. Under the Scheme, suppliers or manufacturers of the radiocommunicationsapparatus may apply to OFTA for certification of their apparatus against thisspecification. The application procedures for certification of radiocommunicationsapparatus can be found in the information note OFTA I 401. A prescribed label maybe affixed to the equipment which has been certified by the TA. Details of thelabelling arrangement can be found in the Standardisation Guide HKTA 3211.

    5. In addition to this specification, radiocommunications apparatus capable of being usedfor connection as customer premises equipment (CPE) to the publictelecommunications networks (PTNs) in Hong Kong should comply with the relevantnetwork connection specification(s) issued by the TA. Manufacturers or suppliersmay also apply for a separate certification by the TA to verify conformity of theapparatus with the relevant specification(s) before it is connected to the PTNs.Details concerning the application procedure for certification of CPE by the TA can befound in the information note OFTA I 412.

    6. LPDs are required to operate on a no-interference no-protection basis, i.e. they maynot cause radio interference and cannot claim protection from interference.Manufacturers or suppliers of LPD are advised to consider the potentiality ofinterference due to the shared use of the frequencies.

  • HKTA 1035 ISSUE 3 Draft 12 Page iiJANUARY 2005FEBRUARY 2003

    7. The TA reserves the right to give separate certification to models he considers to betechnical variants and the performance of which may differ between models.

    8. The TA may amend any part of this specification as and when he deems necessary.

    9. In case of doubt about the interpretation of this specification, the methods of carryingout the test and the validity of statements made by the equipment manufacturers orsuppliers about the equipment, the decision of the TA shall be final.

    10. The HKTA specifications and information notes are issued by the TA. Thedocuments can be obtained through one of the following methods :-

    ! downloading direct through the OFTAs Internet Home Page. The Home Pageaddress is;

    ! making a request for hard copies to :

    Radio Laboratory, Standards SectionOffice of the Telecommunications Authority,29/F Wu Chung House,213 Queens Road East, Wanchai, Hong Kong.

    Fax : +852 2343 5824Email :

    11. Enquiries about this specification may be directed to :-

    Radio Laboratory, Standards Section,Office of the Telecommunications Authority,29/F Wu Chung House,213 Queens Road East, Wanchai, Hong Kong.

    Fax : +852 2343 5824Email:

  • HKTA 1035 ISSUE 3 Draft 12 Page iiiJANUARY 2005FEBRUARY 2003


    Item Issue No. Paragraph Descriptions1. Issue 2

    Feb 2003Title Re-title document from "Method of Measurement for Low

    Power Devices" to "Performance Specification for LowPower Devices"

    2. Issue 2Feb 2003

    Foreword and Body Define scope and technical requirements for LPDs.

    3. Issue 2Feb 2003

    Annex 1 Incorporate a recommended method of measurement as anAnnex which has similar content as contained in HKTA1035 Issue 1.

    4. Issue 3Jan 2005

    1.2, 2.1 and 2.2 Add new frequency bands which are included in theTelecommunications (Telecommunications Apparatus)(Exemption from Licensing) Order.

  • HKTA 1035 ISSUE 3 Draft 12 Page ivJANUARY 2005FEBRUARY 2003


    1. GENERAL

    1.1 Scope of Specification1.2 Definition1.3 Mechanical and Electrical Design1.4 Electrical Safety Requirements



  • HKTA 1035 ISSUE 3 Draft 12 Page 1JANUARY 2005FEBRUARY 2003



    This specification defines the technical requirements for low power device (LPD),which operates as radiocommunications apparatus that transmit in assignedfrequency bands at a low power level, normally 100 mW or less, as covered by theTelecommunications (Telecommunications Apparatus)(Exemption from Licensing)Order.


    (a) effective radiated power has the meaning assigned to it by Article 1 of theRadio Regulations published by the International Telecommunication Union,as revised from time to time;

    (b) equivalent isotropically radiated power has the meaning assigned to it byArticle 1 of the Radio Regulations published by the InternationalTelecommunication U