Survey Scene

Live Event Webinar Follow-up: Answering Your Questions from the 2014 Esri Conference

August 6, 2014By
Booth2

A few weeks ago at the Esri 2014 International User conference in San Diego, California, we conducted our first live event webinar from a Plexiglas booth sitting among many of the 14,000+ attendees buzzing around inside the San Diego Convention Center. The webinar focused on high-precision GNSS on mobile devices (iOS/Android/Windows), unmanned aerial systems (UAS), and real-time GIS transactions. These... read more

FAA Issues First Commercial UAS Authorization over Land

July 2, 2014By
American Aerospace RS-16 UAS. 12'11" Wingspan. 85 lbs.

Like it or not, as a person who works with geospatial data, UAS (unmanned aerial systems such as drones and UAVs) are in your future. The upside of said technology for “quick and dirty” mapping is undeniable. GNSS plays a key role with UAS, just like it plays a key role in classical photogrammetry. In fact, UAS may even push GNSS technology... read more

Intel’s Mini-PC: A Cheap Server for an RTK Base

June 23, 2014By

I’ve written this many, many times in the past eight years that I’ve written for GPS World magazine, but I have to write it again — this is an exciting time for GNSS! For me, high-precision GNSS is particularly exciting. I’ve been traveling like crazy, and involved in a number of really fun projects that incorporate high-precision GNSS. Of course,... read more

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New Signals, New Launches, and Faulty GPS Receivers

May 22, 2014By
The two Galileo satellites in the clean room.

There has been a lot of GNSS-related news in the past month, so I thought I’d do a quick review of the top stories, including L2C and L5 CNAV messages, launch of a new GPS IIF satellite, and Russian threats to disrupt GPS. read more

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RTK on a Smartphone Running AutoCAD: I Did It Last Week

April 10, 2014By
20140327_161552

Last week was spring break (for high school and college) for my kids. We decided to drive to San Francisco and the surrounding area to do a little sightseeing. It’s a beautiful place. This is a view from our 3rd floor room in the hotel, looking over the bay. Here’s a view from the Marin Headlands overlooking San Francisco Bay and... read more

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Do You Know OPUS Can Do This?

March 7, 2014By
GNSS Choke-ring antenna used

I recently was involved in a project outside of the United States. Part of the project involved setting up a couple of RTK base stations. Of course, I wanted the antenna surveyed with reasonable accuracy with respect to ITRF. Even though supporting OPUS outside of the U.S. is out of the scope of the NGS mission (I assume), it works... read more

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Centimeter-Level RTK Accuracy More and More Available — for Less and Less

February 4, 2014By
Eric Gakstatter

Last month, I started off 2014 with a bang by listing all the public RTK bases available in the United States, most of them being free. I received a lot of positive feedback and some enlightenment. For example, I didn’t know that in California, there are more than 330 RTK public base stations accessible by anyone for free via the... read more

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Finally, A List of Public RTK Base Stations in the U.S.

January 7, 2014By

First of all, let me wish a Happy New Year to all my friends around the world and a prosperous 2014. I’m as excited as I’ve ever been about GNSS technology. If I may ask for forgiveness from you if you live outside of the United States, I’d like to start out answering a question I’ve been asked about for... read more

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