International Civil Aviation Organization
ACP/FSMP
WG-F/32
WP05
WORKING PAPER
2015-02-04
FREQUENCY SPECTRUM MANAGEMENT PANEL (FSMP)
(AERONAUTICAL COMMUNICATIONS PANEL (ACP))
THIRTY SECOND MEETING OF WORKING GROUP F (FREQUENCY)
Cairo, Egypt 16 – 24 February 2015
Agenda Item 6
Development of material for ITU-R meetings
Liaison Statement from ITU-R WP5B
“Protection of radio altimeters following implementation of WAIC systems
in the frequency band 4 200-4 400 MHz”
(Presented by the Secretary)
SUMMARY
The Attachment to this paper contains a Liaison Statement from ITU-R
WP5B, informing ICAO of the new ITU-R Report M.2319, containing the
ITU study results relevant to implementation of WAIC in the frequency band
4 200 – 4 400 MHz.
ACTION
WG-F is invited to note the Liaison Statement and take action as appropriate.
Attachment: Liaison Statement from ITU-R WP5B: “Protection of radio altimeters following
implementation of WAIC systems in the frequency band 4 200-4 400 MHz”
(2 pages)
Document1
ATTACHMENT
-2-
FSMP (ACP) WG-F/32 WP05
Radiocommunication Study Groups
Source:
Document 5B/TEMP/354
Annex 24 to
Document 5B/761-E
9 December 2014
English only
Annex 24 to Working Party 5B Chairman's Report
LIAISON STATEMENT TO ICAO
Protection of radio altimeters following implementation of WAIC systems
in the frequency band 4 200-4 400 MHz
ITU-R Working Party 5B (WP 5B) thanks ICAO for its support of the efforts under WRC-15
agenda item 1.17 and for the information in the liaison statement (Doc. 5B/681) providing
clarification on the issue of the protection of radio altimeters following the implementation of
WAIC systems in the frequency band 4 200-4 400 MHz.
WP 5B notes that ICAO is of the view that the characteristics of all relevant radio altimeters operated in
the field today are described in Recommendation ITU-R M.2059 “Operational and technical
characteristics and protection criteria of radio altimeters utilizing the band 4 200-4 400 MHz” and that
ICAO will consider these characteristics in developing Standards And Recommended Practices (SARPs)
for WAIC systems.
WP 5B is pleased to inform ICAO that ITU-R studies on this issue are contained in the new Report ITUR M.2319 (Doc. 5/171(Rev.1)). WP 5B invites ICAO to consider this Report in the process of developing
the above mentioned SARPs for WAIC systems.
WP 5B welcomes any future cooperation with ICAO on this issue.
Status: For information
Contact:
Loftur Jonasson
E-mail: LJonasson@icao.int