Policy on Intellectual Property Right (IPR)
1 Purpose
2 Radiosonde link availability and data availability
3 Procedure
3.1 400.15-406 MHz band
3.2 1 668.4-1 700 MHz band
4 Flight data results
4.1 Flight data results for 400.15-406 MHz
4.2 Flight data results for 1 675-1 700 MHz
4.2.1 Flight data for link path loss
4.2.2 Link availability and link margin
5 Interference measurements based upon actual GPS radiosonde flight data
5.1 Background
5.2 Data acquisition data reproduction and interference level
measurement hardware
5.3 Radiosonde RF signal acquisition
5.4 Radiosonde RF signal reproduction
5.5 Data acquisition, analysis and the determination of
interference levels
5.5.1 Data acquisition
5.5.2 Data reconstruction
5.5.3 Interference calibration
5.5.4 Theoretical maximum allowable interference level
5.5.5 Interference power measurement methodology
6 Measurement results
7 Conclusions
7.1 Conclusions specific to 400.15-406 MHz
7.2 Conclusions specific to the band 1 675-1 700 MHz
Annex 1 Flight signal level and S/N plots for
400.15-406 MHz with omnidirectional antenna
Annex 2 Flight signal level and S/N plots for
400.15-406 MHz with directional antennas
Annex 3 Flight signal level plots for 400.15-406 MHz, comparison of
directional and omnidirectional antennas
Annex 4 Flight path loss plots for 1 675-1 700 MHz
Annex 5 Flight signal strength plots for 1 675-1 700 MHz