4 Sharing with the radiolocation service Annex 4.1: Wind Profile Radar Systems A4.1.1 Background In the frequency band 46-68 MHz, RR No. 5.162A provides an additional allocation to the radiolocation service on a secondary basis in a number of countries and limited to the use of wind profiler radars. in Germany, Austria, Belgium, Bosnia and Herzegovina, allocation: China, Vatican, Denmark, Spain, Estonia, the Russian Federation, Finland, France, Ireland, Iceland, Italy, Latvia, The Former Yugoslav Republic of Macedonia, Liechtenstein, Lithuania, Luxembourg, Monaco, Montenegro, Norway, the Netherlands, Poland, Portugal, the Czech Rep., the United Kingdom, Serbia, Slovenia, Sweden and Switzerland the band 46-68 MHz is also allocated to the radiolocation service on a secondary basis. This use is limited to the operation of wind profiler radars in accordance with Resolution 217 (WRC97). (WRC12) The relevant Wind profiler radars parameters for sharing studies with amateur service are described in Table A4.1.1 below (to be confirmed): TABLE A4.1.1 System parameter Range of values Pulse peak power (kW) 5 60 – Average transmitted (kW) 0.5 5 – Main beam antenna gain (dBi) 30 34 – Antenna beamwidth (°) 4 6 – Main pointing elevation angle (°) 90 (zenith) Tilt angle from main pointing (°) 11 16 – Antenna side-lobe suppression between 0 and 5° compared to horizon (dB) 33 (minimum) – 40 (Median) Antenna height (m) 1 Additional shielding at horizon (dB) TBD Pulse width (µs) 1 10 – Necessary bandwidth (MHz) 0.2 2.2 – Occupied bandwidth (MHz) 0.5 5 Protection criteria (I/N)(dB) –6 Noise figure (dB) 3 Maximum interference level in necessary bandwidth (dBW) (for 0.2 –154 MHz bandwidth) (for 2 MHz –144 bandwidth) The reference ITU-R documents related to wind profilers are: Resolution 217 (WRC-97) Implementation of wind profiler radars. – –
4 Sharing with the radiolocation service Annex 4.1: Wind Profile Radar Systems A4.1.1 Background In the frequency band 46-68 MHz, RR No. 5.162A provides an additional allocation to the radiolocation service on a secondary basis in a number of countries and limited to the use of wind profiler radars. allocation: in Germany, Austria, Belgium, Bosnia and Herzegovina, China, Vatican, Denmark, Spain, Estonia, the Russian Federation, Finland, France, Ireland, Iceland, Italy, Latvia, The Former Yugoslav Republic of Macedonia, Liechtenstein, Lithuania, Luxembourg, Monaco, Montenegro, Norway, the Netherlands, Poland, Portugal, the Czech Rep., the United Kingdom, Serbia, Slovenia, Sweden and Switzerland the band 46-68 MHz is also allocated to the radiolocation service on a secondary basis. This use is limited to the operation of wind profiler radars in accordance with Resolution 217 (WRC97). (WRC12) The relevant Wind profiler radars parameters for sharing studies with amateur service are described in Table A4.1.1 below (to be confirmed): TABLE A4.1.1 System parameter Range of values Pulse peak power (kW) 5 – 60 Average transmitted (kW) 0.5 – 5 Main beam antenna gain (dBi) 30 – 34 Antenna beamwidth (°) 4 – 6 Main pointing elevation angle (°) 90 (zenith) Tilt angle from main pointing (°) 11 – 16 Antenna side-lobe suppression between 0 and 5° compared to horizon (dB) 33 (minimum) – 40 (Median) Antenna height (m) 1 Additional shielding at horizon (dB) TBD Pulse width (µs) 1 – 10 Necessary bandwidth (MHz) 0.2 – 2.2 Occupied bandwidth (MHz) 0.5 5 Protection criteria (I/N)(dB) –6 Noise figure (dB) 3 Maximum interference level in necessary bandwidth (dBW) –154 (for 0.2 MHz bandwidth) –144 (for 2 MHz bandwidth) The reference ITU-R documents related to wind profilers are: – Resolution 217 (WRC-97) – Implementation of wind profiler radars.
R15-WP5A-C-0650!N14!MSW-E.docx