ACP WG B Work Program

1
ACP WG BWork Program

• Frequency Planning Criteria
• VDL Mode 2
• VDL Mode 3
• VDL Mode 4
• VDL Mode 4 Global Signaling Channel
• On-board aircraft compatibility

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Papers for WG B18TH Meeting, 17-25 February
2005Bangkok, Thailand

• Working Paper 9, Report of VDL Mode 3 Voice
  Quality Tests With Radio Interference, by
  Yasuyoshi Nakatani, Japan

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VDL Frequency Planning

• WGB/17 completed the frequency assignment
  planning material, including relevant guidance
  material, for VHF digital link (VDL) Modes 2
• VDL Mode 3 could operate on the fourth adjacent
  25 kHz channel from a DSB-AM assignment and on
  the second adjacent 25 kHz channel from a VDL
  Mode 3 assignment.
• Test planning for VDL Mode 4, including the need
  for an assignment in the 112-117.975 MHz band is
  on-going.
• Excerpt From ACP-Memo/02, 14/01/05, from ACP
  Secretary to Members, Aeronautical Communications
  Panel (ACP)

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Summary VDL Mode 2 Frequency Planning Criteria1

• Number of Channels for no planning
• Note
• 1. WGB16/WP14 Appendix (after Tokyo) from
  AMCP/8-WP/66 5J-20 Appendix J to the Report on
  Agenda Item 5.

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Summary VDL Mode 3 Frequency Planning
Criteria1Number of Channels for no planning

• Notes
• 1. WP-WGB17 Document 08, 17th Meeting of
  Aeronautical Communications Panel Working Group B
  (ACP WG-B) Montreal, Canada, 20 to 25 October
  2004 and 26 to 28 October 2004, VDL Mode 3 to VDL
  Mode 3 Avionics Interference Testing, Agenda Item
  4 VDL frequency assignment planning criteria
  for VDL Mode 3, Presented by the United States of
  America.
•  2. ACP-Memo/02, 14/01/05, Ref SP 62/2, To
  Members, Aeronautical Communications Panel (ACP),
  From ACP Secretary, Progress of Aeronautical
  Communications Panel (ACP) Subject, To note and
  provide comments by 15 February 2005.

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Status Frequency Planning CriteriaVDL Mode 4

• Test Plan Presented to WG B
• Testing according to the test plan is planned for
  early next year.
• Reference ACP (WG B), 17th Meeting, 20 25th of
  October 2004, Montreal, Canada Signalling
  Channels for VDL Mode 4, F. Lindblom, Swedish
  CAA, Sweden

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VDL Band implementation target planagreed by the
EANPG FMG.
Reference ACP (WG B), 17th Meeting, 20 25th of
October 2004, Montreal, Canada Signalling
Channels for VDL Mode 4, F. Lindblom, Swedish
CAA, Sweden
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Future Work

• Further work was needed to complete the the work
  on Frequency Planning Criteria.
• VDL Mode 3 to VDL Mode 2
• VDL Mode 4 to VDL Mode 2
• Guidance material on 8.33 kHz and 50 kHz radios.
• There are currently no plans to provide further
  guidance material on 50 kHz radios, unless
  required.
• Note 1. Report of the 17th Meeting of
  Aeronautical Communications Panel (ACP)
• Working Group B, 20 to 25 October, 2004,
  Montreal, Canada
• VDL Mode 4 Global Signaling Channel
• On-board aircraft EMC is ongoing