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Agenda item 1.23 – Amateur service secondary allocation

Agenda item 1.23 – Amateur service secondary allocation. Presenter: Dale Hughes. Agenda item 1.23. …to consider an allocation of about 15 kHz in parts of the band 415-526.5 kHz to the amateur service on a secondary basis, taking into account the need to protect existing services… Why?

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Agenda item 1.23 – Amateur service secondary allocation

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  1. Agenda item 1.23 – Amateur service secondary allocation Presenter: Dale Hughes

  2. Agenda item 1.23 …to consider an allocation of about 15 kHz in parts of the band 415-526.5 kHz to the amateur service on a secondary basis, taking into account the need to protect existing services… Why? Sufficiently different characteristics to adjacent amateur service allocations at 137 kHz & 1.8 MHz to ‘fill a gap’.

  3. Australia's position going into WRC-12 Allocation was supported: Existing users (NDB’s) must be protected from harmful interference. Protection measures for existing users were agreed. Due to incumbent users a subset of the band was the most likely outcome so either WRC ‘method’ was acceptable.

  4. Progress during WRC-12 #1 At first, very slow progress at Sub Working Group level. General agreement between the ‘affirmative’ side about frequency band limits, but… Strong opposition from a number of countries to any allocation with delaying tactics employed to prevent any progress.

  5. Progress during WRC-12 #2 A ‘drafting’ group was formed to develop a document that contained both positions. Again more argument and delaying tactics… Change of CEPT and APG positions meant progress, but reduced bandwidth. Power limits and geographic spacing limits suggested, resisted… accepted.

  6. Progress during WRC-12 #3 No consensus at Sub Working Group level. Elevated to Com4 level and passed after discussion. Attempt by one administration at plenary to impose very restrictive protection measures overcome. Affirmative position accepted and passed by plenary session.

  7. Outcome WRC outcome is in line with the original Australian position: A new secondary allocation for the amateur service between 472 and 479 kHz 5 W e.i.r.p. limit and other protection measures.

  8. Future impact: Will allow the amateur service to develop skills and expertise at medium frequencies. Will enhance capability for disaster relief and emergency communications. Provide opportunity for: research and development of new communications modes to cope with weak signals and high noise levels, research of propagation characteristics.

  9. Thanks go to: The ACMA for: their leadership, organization and support activitiesat WRC-12 and the ‘community’ participation process in the WRC preparatory phase. The Wireless Institute of Australia for its untiring support of the amateur radio service. The WRC delegates and ARSG members for their support and enthusiasm. Acknowledging the late Mr. Keith Malcolm.

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