| 1. | In contrast, GNSS network architectures often make use of multiple reference stations.
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| 2. | The system requires an extensive network of reference stations, and constant maintenance.
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| 3. | The license for the above-referenced station will expire on October 1, 2013.
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| 4. | In the following years, it became a reference station in Spain.
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| 5. | The team established the first continuous-tracking GPS reference station in Antarctica.
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| 6. | "' Virtual Reference Station "'( VRS ) networks use Global Navigation Satellite Systems.
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| 7. | In 2010 GLONASS differential reference station started to work in Novolazarevskaya.
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| 8. | The reference station also provides Internet to Novolazarevsklaya personnel.
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| 9. | Operational reliability and accuracy depend on the density and capabilities of the reference station network.
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| 10. | Signals from core satellite are received by ground reference stations and any errors in the signals are identified.
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