Citation
Abstract
The International Telecommunications Union (ITU) has allocated 2110 to 2200 MHz for the third-generation (3G) mobile services. Part of the spectrum (2110 to 2120 MHz) was allocated for space research service and has been used by the Deep Space Network (DSN) for years for sending command uplinks to deepspace missions. Due to the extremely high power transmitted, the potential for interference to 3G users in areas surrounding the DSN Goldstone facility exists. To address this issue, a preliminary analytical study has been performed, and computer models have been developed. The goal is to provide a theoretical foundation and tools to estimate the strength of the interference as a function of distance from the transmitter for various interference mechanisms (or propagation modes), and then to determine the size of the area in which 3G users are susceptible to interference from the 400-kW transmitter at Goldstone. The focus is non-line-of-sight interference, taking into account terrain shielding, anomalous propagation mechanisms, and technical and operational characteristics of the DSN and the 3G services.
Keywords
Details
- Volume
- 42-160
- Published
- February 15, 2005
- Pages
- 1–13
- File Size
- 1.0 MB