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Analysis of two years of measurements from a three-site satellite beacon diversity experiment in Norway is presented. The operating frequency was 19.68 GHz, elevation angles were between 21.7° and 22°, and site separations 23, 29.7, and 50.1 km. Due to the spatial decorrelation of rain, simultaneous attenuation at all sites occurs much less frequently than at a single site. All three two-site diversity...
Simultaneous measurements of tropospheric scintillation on three different satellite beacons at Ka-band are analyzed. The links have elevation angles of 3.3, 21.8 and 22 degrees. Corner frequency of scintillation is used to calculate the transverse wind speed on each of the links and this is compared with the predictions from a numerical weather model. Results for the two links with higher elevation...
The purpose of this paper is to present the use of Numerical Weather Prediction software to generate 4D-meteorological parameters for the characterization and simulation of tropospheric scintillation for geostationary and non-geostationary Earth-satellite links. A preliminary test has been performed against measurements at 30 degree elevation for a geostationary satellite link and an analysis of the...
Satellite services in the High North are utilized extensively for both communication purposes and for earth and climate observations. This paper presents results of two year measurements at 20 GHz and co-sited meteorological data. The results suggest that with 7–8 dB margin, services can be provided with 99 % availability for systems with elevation angles as low as 3.2° and 3 dB for elevation angles...
Simultaneous 19.68 GHz beacon and precipitation measurements from Bergen at the west coast of Norway are described and analyzed. The measurement site is located at 60° North and 5° East, resulting in a 21.5° elevation angle towards the geostationary Eutelsat Ka-Sat satellite at 9° East. This location experiences high amounts of precipitation during the year, with total amount comparable with tropical...
Results from one year of a micro-diversity slant path measurement on a 20 GHz satellite beacon signal with 21.7° elevation in the South of Norway are presented. The two measurement sites are located 580 meters apart and oriented parallel with the main weather movement direction found in this part of Norway. The baseline between the stations was nearly perpendicular with the path towards the satellite...
One year of measured beacon data at 20 GHz from 3 high latitude locations in Norway are analyzed and compared with existing scintillation models. Severe fading of up to 45 dB was recorded at Isfjord Radio, while fades below 8 dB were recorded at the other locations. The measured amplitude distribution becomes highly asymmetrical during severe fading. Long term fading levels for Vadsø and Røst are...
One year of data from an experiment measuring a 19.68 GHz satellite beacon and meteorological conditions at high latitude locations with maritime climate in Norway are described. The locations covered in this paper are Røst (67.5°N), Vadsø (70.1°N) and Isfjord Radio (78.1°N). The elevation angles towards the satellite are 14, 10 and 3 degrees, respectively. Excess attenuation and precipitation are...
Satellite services in the High North are utilized extensively for both communication purposes and for earth and climate observations. This paper presents a European Space Agency (ESA) funded propagation and telecom measurements campaign addressing the main challenges for this regions. The interest is in the K-band frequency 20 GHz, as these systems allow for much more data transmission. There are...
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