1. Overview of Regulatory Body Thomas Ewers BNetzA Germany Chairman WP8B

2. ITU-R Working Party 8B Seminar Structure Definitions (Article 1 RR) Definitions (Article 1 RR) Main Radar Frequency Bands (Article 5 RR) Main Radar Frequency Bands (Article 5 RR) Recommendations Recommendations Ongoing issues Ongoing issues

3. ITU-R Working Party 8B Seminar Definitions (Article 1 RR) Radiodetermination (No. 1.9): The determination of the position, velocity and/or other characteristics of an object, or the obtaining of information relating to these Parameters, by means of the propagation properties of radio waves Article 1 RR: Terms and definitions Radionavigation (No. 1.10): Radiodetermination used for the purposes of navigation, including obstruction warning Radiolocation (No. 1.11): Radiodetermination used for the purposes other than those of radionavigation

4. ITU-R Working Party 8B Seminar Radiocommunication Services Allowed to operate in bands allocated to Radiodetermination service (No. 1.40) Radionavigation service (No. 1.42) Maritime radionavigation service (No. 1.44) Aeronautical radionavigation service (No. 1.46) Radiolocation service (No. 1.48) (Similar structure for related satellite services)

5. ITU-R Working Party 8B Seminar Additional provisions Additional rights or limitations are given in footnotes in the bands allocated to the respective radiocommunication services, e.g.: 2700 – 2900 MHz, 5.423: meteorological ground based radars have equal rights as aeronautical radars 2900 – 3100 MHz, 5.426: aeronautical use limited to ground based radars 13.75 – 14 GHz, 5.502: e.i.r.p of radars limited to certain values dependent on elevation angle

6. ITU-R Working Party 8B Seminar Main radar frequency bands 1215 – 1400 MHz 2700 – 3400 MHz 5250 – 5850 MHz 8.5 – 10.4 GHz 13.75 – 14 GHz 15.7 – 17.3 GHz 33.4 – 36 GHz

7. ITU-R Working Party 8B Seminar ITU-R Recommendations Several Recommendations have been developed by WP8B covering generic information regarding sharing studies with radars as well as specific information about radars in certain bands: M.628: Technical characteristics for search and rescue radar transponders M.629: Use of the radionavigation service of the frequency bands 2900 – 3100 MHz, 5470 – 5650 MHz, 9200 – 9300 MHz, 9300 – 9500 MHz and 9500 – 9800 MHz M.824: Technical characteristics of radar beacons (RACONS) M.1085: Technical and operational characteristics of wind profiler radars for the bands in the vicinity of 400 MHz M.1176: Technical parameters of radar target enhancers M.1177: Techniques for measurements of unwanted emissions of radar systems M.1179: Procedures for the interference coupling mechanisms and mitigation options for systems operating in bands adjacent to and in harmonic relationship with radar stations in the radiodetermination service M.1226: Technical and operational characteristics of wind profiler radars in bands in the vicinity of 50 MHz

8. ITU-R Working Party 8B Seminar M.1227: Technical and operational characteristics of wind profiler radars in bands in the vicinity of 1000 MHz M.1313: Technical characteristics of maritime radionavigation radars M.1314: Reduction of unwanted emissions of radar systems operating above 400 MHz M.1372: Efficient use of the radio spectrum by radar stations in the radiodetermination service M.1460: Technical and operational characteristics and protection criteria of radiodetermination and meteorological radars in the 2900 – 3100 MHz band M.1461: Procedures for determining the potential for interference between radars operating in the radiodetermination service and systems in other services M.1462: Characteristics and protection criteria for radars operating in the radiolocation service in the frequency range 420 – 450 MHz M.1463: Characteristics and protection criteria for radars operating in the radiodetermination service in the frequency band 1215 – 1400 MHz M.1465: Characteristics and protection criteria for radars operating in the radiodetermination service in the frequency band 3100 – 3700 MHz ITU-R Recommendations

9. ITU-R Working Party 8B Seminar M.1464: Characteristics of radiolocation radars, and characteristics and protection criteria for sharing studies for aeronautical radionavigation and meteorological radars in the radiodetermination service operating in the frequency band 2700 – 2900 MHz M.1466: Characteristics and protection criteria for radars operating in the radionavigation service in the frequency band 31.8 – 33.4 GHz M.1638: Characteristics of and protection criteria for sharing studies for radiolocation, aeronautical radionavigation and meteorological radars operating in the frequency bands between 5250 and 5850 MHz M.1639: Protection criterion for the aeronautical radionavigation service with respect to aggregate emissions from space stations in the radionavigation satellite service in the band 1164 – 1215 MHz M.1640: Characteristics of and protection criteria for sharing studies for radars operating in the radiodetermination service in the frequency band 33.4 – 36 GHz M.1644: Technical and operational characteristics and criteria for protecting the mission of radars in the radiolocation and radionavigation service operating in the frequency band 13.75 – 14 GHz M.1730: Characteristics of and protection criteria for the radiolocation service in the frequency band 15.7 – 17.3 GHz ITU-R Recommendations

10. ITU-R Working Party 8B Seminar Ongoing Activities Further development of Recommendations on operational and technical characteristics of radiolocation and radionavigation radars, e.g. in the 9 GHz range Further development of Recommendations on operational and technical characteristics of radiolocation and radionavigation radars, e.g. in the 9 GHz range Further development of methodologies to asses the sharing with other services Further development of methodologies to asses the sharing with other services Consequential studies to WRC-03 (Sharing of RNSS and Radiodetermination, Compatibility between aeronautical systems and broadcast at 108 MHz) Consequential studies to WRC-03 (Sharing of RNSS and Radiodetermination, Compatibility between aeronautical systems and broadcast at 108 MHz) Preparation for WRC-07 Preparation for WRC-07 Studies on request of RRC-04 Studies on request of RRC-04