File:GPS Reference Station on St Agnes Beacon - geograph.org.uk - 366909.jpg
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| Description |
English: GPS Reference Station on St Agnes Beacon In the old days this was a Triangulation Pillar. Now it can be used as an accurately located reference point for GPS Surveys. A GPS receiver can be placed on here as a reference station while at the same time a roving receiver can do the actual surveying. Most of the positional inaccuracies in the signals received from the GPS satellites will be recorded equally by both stations but since this is at a known location, data recorded here can be used to cancel out inaccuracies in the data received by the roving station. |
| Date | |
| Source | From geograph.org.uk |
| Author | Tony Atkin |
| Attribution (required by the license) | Tony Atkin / GPS Reference Station on St Agnes Beacon / |
| Camera location |   | View this and other nearby images on: OpenStreetMap |  |
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| Object location | | View this and other nearby images on: OpenStreetMap | |
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Licensing edit
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This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Tony Atkin and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Tony Atkin
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- The location categories are based on information from this geonames tool and this OpenStreetMap tool combined with a database. You can also have a look at this tool from mysociety.
- The topic category from Geograph was Triangulation Pillar (find similar images Pillar at Geograph)
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 17:14, 4 January 2011 | | 480 × 640 (119 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=GPS Reference Station on St Agnes Beacon In the old days this was a Triangulation Pillar. Now it can be used as an accurately located reference point for GPS Surveys. A GPS receiver can be placed |
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