Popular Archived Series

GIAA Mailbag: On Prism Configuration and Checking the Adjustment of Leveling Devices

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Tool tips.
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The GPS Observer

By James P. Reilly Ph.D.
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Tides and their relationship to vertical datums.
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GIAA Mailbag: On Centering Errors for Dual-Axis Compensators and Sun Effects on Tubular Vials

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Tips on centering errors for dual-axis compensators and sun effects on tubular vials.
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GIAA Mailbag: On properly maintaining and calibrating instruments.

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Basic care of instruments at the office so they operate properly in the field.
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The GPS Observer: Geoid models.

By James P. Reilly Ph.D.
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In this month's column, I will discuss the geoid models developed by the United States National Geodetic Survey (NGS).
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GIAA Mailbag: On sighting distances with digital levels and the accuracy of GPS receivers with WAAS capabilities.

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Is it possible increase distances between setups to perhaps twice the maximum distance of 120 m that we try to achieve when the terrain allows it?
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The GPS Observer

By James P. Reilly Ph.D.
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On Galileo, the European satellite navigation system.
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GIAA Mailbag: On Carrying a Total Station and the Accuracy of Reflectorless Total Stations

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Do manufacturers recommend carrying the instrument on the tripod?
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The GPS Observer: GPS Modernization

By James P. Reilly Ph.D.
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The future of GPS satellites.
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GIAA Mailbag: On Errors in Trigonometric Leveling

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Tool tips from industry experts.
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Multimedia

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HxGN Live

More than 3,500 attendees from more than 70 countries attended HxGN Live, the annual Hexagon AB user conference, at the MGM Grand Hotel & Casino in Las Vegas on June 3-6. About 450 keynotes and panel discussions were held, and several companies from around the world exhibited their geospatial products. Here are a few snapshots from the event.

9/30/14 2:00 pm EDT

Technical Workflows on the Job Site Using 3D Laser Scanning

The purpose of this webinar is to dig into different laser scanning workflows and techniques.

POB

POB September 2014

2014 September

In this September 2014 issue of POB, we take a look at a book that reveals how a rare-map dealer made millions stealing ancient maps. Also, discover the secrets of a 21st-century surveyor and how technology enables small surveying businesses to ease growing pains and maximize their potential.

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Surveying Career

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The #1 buyers' guide for land surveyors and geomatics professionals. Search listings for software and equipment manufacturers, equipment dealers and professional services. CLICK HERE to view GeoLocator.

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