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12 Cards in this Set
- Front
- Back
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What is a GNSS receiver |
Provides high level of accuracy and precision through the use of logged GNSS data , to precisely position points of the earths surface |
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What Trimble does RAN use |
7 and r8 receivers Determines position through process called carrier phase measurement |
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3 GNSS Methods used my RAN |
Abosolute Classic static baseline Kinetic on the fly |
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Absolute |
Determined from observations recorded by single geodetic receiver. Relies on a regional or global framework of continuesly operating geodectic GPS stations |
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Classic static bade |
Two receivers both stationary,one known mark the other on a unknown marks simultaneously recording |
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Kinetic on the fly |
Two receivers are stationary on a known mark, the other simualtaneously recording |
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Equipment needed |
Trimble receive Geodetic cable/antenna Tsc 3 12 volt battery Trimble measuring rod Optical TriBeCa Field tripod with survey Field sheet and sops |
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Errors in setting up GNSS receivers |
Innaacurate measurement of antenna height Consideration of multiparty effects Incorrect levelling Consideration of a degraded or blocked signal near trees or building |
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Equipment for Trimble geodectic roving kit |
Trimble r8 receiver Zephyr geodectic antenna and antenna cable Tsc3 Batteries carbon fibre pogo stick Tsc3 bracket Operating instructions |
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Considerations |
Be aware of arc Hold rover as vertical as possible Pause rover when moving around obstructions Detailed notes in field book Remain over significant Point for 1 min Marian 5 satellites |
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Features needed to delinwrate coastline |
Bridges, wharves, jetties, and harbour facilities Landing places, ramps and slipways Rivers and estuaries Conspicuous objects and landmarks Land features Drying line |
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Gng |
Yhnv |
