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Precision GPS Videos

General Videos

Even if you are an experienced GIS, Mapping or Survey user you may have some questions about the realities of precision GPS real-world use:

  • Grid vs. Ground Measurements
  • U.S. Survey Feet vs. International Feet
  • Reference Frames vs. Datum: WGS84, NAD83, NAD83-CORS96, NAD83-2011, ITRF2000...
  • Best Practices for Collecting Data in the Field
  • Ellipsoid vs. Orthometric Elevations: Hey! My GPS always reads elevations that are 100 feet off

Mark Silver's videos may help you sort out these questions. Here is a recommended viewing list:

#1 Thumbnail U.S. Survey Feet vs. International Feet

  0.3048 vs. 0.30480061 what is the difference?

#2 Thumbnail Grid vs. Ground Distance Measurements

  Why does my GPS measure distances short?

#3 Thumbnail Ellipsoid vs. Orthometric Elevations

  Why is the elevation on my GPS receiver off 70 feet?

# 4 Thumbnail Best Practices for Maximizing GPS Accuracy

  How do you hold your receiver while collecting data to maximize accuracy?

#5 Thumbnail OPUS Projects Example

Matches the American Surveyor Article found [ here ]

Other videos that you should watch:

Spectra Precision / Ashtech MobileMapper Field V3.0

Carson Survey, Carlson Civil Suite, Carlson Desktop

#16.1

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Which Carlson Desktop product should you purchase?
Survey, Civil Suite, Construction, Takeoff? Have an evaluation plan!
#16.2

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Installing Carlson Desktop Products
Step-by-step guide to installing Carlson Desktop products
#16.3 Thumbnail A Simple Survey Job
Step-by-step guide to a simple survey job, field to plotter.
#16.4 Thumbnail Mouse Selections
Crossing - Window - Fence - Selections
#16.5 Toolbar Disaster Recovery
HELP! All my toolbars are missing!
#16.6 Command Line Dialog Offscreen
I have two monitors (dual screens) at the office on my laptop, when I left the office, I still had the command line dialog on the second screen. How do I get it back to the main screen?
#16.7 Thumbnail Carlson Software: Changing the Default Project Folder
How to change the default project folder.
#16.8 Thumbnail Carlson Software: Mouse Moves and Buttons
Left click, right click, middle click and roll. Step-by-step tricks.
#16.9 Carlson Software: Lines, 2D and 3D Polylines
What's the difference!?
#16.10

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Carlson Software: Locking points in CRD Files
Step-by-step guide to using CRDB files which allow point locking.
#16.11 Carlson Software: Labeling BOTH Grid and Ground
Step-by-step guide to dimensioning both GRID and GROUND, automatically on a drawing.
#16.12 Carlson Software Geodetic Bearings and Distances
You can dimension and inverse to Geodetic Mean Bearings and Elevation Distances in Carlson. This is a step-by-step guide.
#16.13 Is the InteliCAD Engine Slow?
It is plenty dang fast. Here is an example of a large subdivision with a big raster background. Seems to be instantaneous on my little laptop.
#16.14 Carlson Software: Surface from ASCII Point List
Quick, simple, step-by-step.
#16.15 Carlson Software: Using a ESRI Mapserver for background maps in Carlson Products
You can download, import and display raster objects in Carlson with the built in map server option. Step-by-step example.

SurvCE and FAST Survey

GNSS Solutions

 MobileMapper 100, ProMark 100/120/200/220 Hints

ProMark 3 Training Videos

[ Click here to download the data files used in the PM3 training video ]

#51 ProMark 3 GPS Training Chapter 0: Introduction
#52 ProMark 3 GPS Training Chapter 01A Setting Up A Base
#53 Thumbnail

ProMark 3 GPS Training Chapter 01B Bar Initialization Stop And Go

#54 Thumbnail

ProMark 3 GPS Training Chapter 01C Post-Processing Stop And Go

 

#55 Thumbnail

ProMark 3 GPS Training Chapter 02A Full Static Rover Shots

#56 Thumbnail

ProMark 3 GPS Training Chapter 02B: Post-Processing Static Rover Shot

#57 Thumbnail

ProMark 3 GPS Training Chapter 03A Stop And Go without Bar Init

#58 Thumbnail

ProMark 3 GPS Training Chapter 3B Processing Stop And Go

#59 Thumbnail

ProMark 3 GPS Training Chapter 4A Processing Against Real World Coordinates

#60 Thumbnail

ProMark 3 GPS Training Chapter 04B Establishing Control For Base Or Reference

#61 Thumbnail

ProMark 3 GPS Training Chapter 04C GNSS Archiving

#62 Thumbnail

ProMark 3 GPS Training Chapter 04D Mission Planning

#63 Thumbnail

ProMark 3 GPS Training Chapter 04E Importing NGS Antenna Calibrations Into GNSS

#64 Thumbnail

ProMark 3 GPS Training Chapter 05B Loading background GeoTiff

#65 Thumbnail

ProMark 3 GPS Training Chapter 05C PM3 USB Cable

#66 Thumbnail

ProMark 3 GPS Training Chapter 06A Setting Up a Tripod

OPUS-S; OPUS-RS

All Topo Maps Videos
 

#70 ATM101: All Topo Maps Version 7 Training Suite

The complete All Topo Training DVD is available for viewing online:

[ Training Video: Click Here! ]

 also available on DVD: 

#71 Building Topomaps for Garmin GPS Receivers
using BigTopo9 to build topographic basemaps for the Garmin: Astro 320, Colorado, Dakota, eTrex 20/30/25/35, GPSMap 62/64/78, Montana, Oregon, Rino 600 and Dakota GPS receivers.
This will work on any Garmin receiver that can accept 'Custom Maps'.
[ Watch on YouTube ]

#72 Building and using BigTopo base maps for ArcPad
using BigTopo to build topographic basemaps for ArcPad projects.
[ Watch on YouTube ]

#74 Building and using raster background maps on the Magellan ProMark 3 (Survey and MM)
using BigTopo to build topographic basemaps for the 'Survey' and 'MobileMapping' program on the Magellan ProMark 3 GPS receiver.
[ Watch on YouTube ]

#75 Building and using raster background maps in Fast Survey/Carlson SurvCE
The latest versions of Ashtech FAST Survey and Carlson SurvCE allow you to register background raster images. BigTopo9 will directly build tiled coverage and image database files for your data collector. This is a real time saver!

 

 

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