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CMR03/27(Add.15)-E

INTERNATIONAL TELECOMMUNICATION UNION
/ WRC-03 / WORLD
RADIOCOMMUNICATION
CONFERENCE / Addendum 15 to
Document 27-E
16 April 2003
Original: English
GENEVA, 9 JUNE – 4 JULY 2003
PLENARY MEETING
Arab States Common Proposals
proposals for the work of the conference
agenda item 1.17

1.17to consider upgrading the allocation to the radiolocation service in the frequency range 2900-3100MHz to primary

1Introduction

Studies have shown that compatibility between radiolocation radars and radionavigation radars has been achieved through the implementation of interference suppression/rejection circuitry as described in DRR ITUR M.1372. This Recommendation identifies many signalprocessing features provided in radiolocation and radionavigation radars that can mitigate pulsed interference from other radars.

The compatibility testing documented in the draft new Report ITU-R M.[COMPAT] showed that no interference was experienced by the maritime radionavigation radars from emissions of a radiolocation radar, primarily due to the interference suppression circuitry/signal processing.

2Proposals

Based on the above analysis the Arab Administrations support the upgrade of the radiolocation service to primary allocation in the band 2 900-3 100 MHz and adding a new footnote to the Table of Frequency Allocations indicating that the Radiolocation services shall not cause harmful interference to, nor claim protection from or constrain the use and development of, the radionavigation services.

ARTICLE 5

MODARB/27A15/1

2700-4800 MHz

Allocation to services
Region 1 / Region 2 / Region 3
2900-3100RADIONAVIGATION 5.426
RadiolocationRADIOLOCATION ADD 5.GGG
5.425 5.427

Reasons:The Arab Administrations believe that by providing a primary allocation to the radiolocation service, contiguous with the existing band 31003400MHz, will meet today’s requirement for an improved radar target imaging resolution and will result in less-reflective target detection against a clutter environment.

ADDARB/27A15/2

5.GGGIn the band 2900-3100MHz, stations in the radiolocation service shall not cause harmful interference to, nor claim protection from, or constrain the development and use of the radionavigation service in this band.

Reasons:To protect the radionavigation services from any harmful interferences that may be caused by radiolocation services.

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