The following steps describe how to collect data, including latitude and longitude, on a LabQuest or LabQuest 2, and display it on a map.
1. Set up the GPS receiver.
• (LabQuest 2 users) Enable the built-in GPS by choosing Sensor Setup… from the Sensors menu in LabQuest App. Select the GPS check box and tap OK.
• (Original LabQuest users) Connect a Vernier GPS Sensor, order code vgps to the USB port of the original LabQuest.
2. Once the GPS has acquired enough satellites, latitude and longitude values will be displayed. Note: The first time GPS is enabled, it may take several minutes to determine location. To minimize this time, orient the LabQuest screen upward, toward an unobstructed view of the sky, and do not move until latitude and longitude values are displayed. Subsequent connections will take less time. Altitude, speed, and direction over ground will also be collected once data collection has begun. These data are available in the data table.
3. Confirm the data-collection mode is appropriate. If the GPS is the only sensor being used, the default data-collection mode will be Time Based. If GPS is being used with another sensor, the default data-collection mode is Selected Events. You may also consider using Data Matrix mode: TIL 2366: What is the Data Matrix and how is it used?
4. Collect data.
5. Save your data by choosing Save… from the File menu.
6. Connect LabQuest to your computer and start Logger Pro. (If you don't have access to Logger Pro, see TIL 3458: How do I map LabQuest data if I don't own Logger Pro?.)
7. If the data were still being displayed on LabQuest, Logger Pro may automatically prompt you to import. If not, choose LabQuest Browser from the Logger Pro File menu, and choose Open. Select the desired file from the list and open it.
8. Three mapping options are available by choosing Export from the File menu of Logger Pro:
• To use with ESRI products, choose GIS Format: Choosing this option saves the data as a tab delimited text file specially tailored for GIS software such as ESRI’s ArcGIS family. The easiest option to map the data is to go to www.arcgis.com and click the Map button. Drag and drop your text file onto the map and the sites will be tagged with your data. The base map can be changed by clicking the Base Map Gallery button. The attribute displayed (the value on which the symbol size is based), can be changed from the pull-down list of attributes. Clicking on a site will display all the attribute data for that site.
• To create a versatile "My Map" in Google™ Maps, choose CSV: This option creates a custom map on your Google account. For complete instructions on this option see TIL 3721: Can I create a map of my Vernier data using Google My Maps? .
• To create a simple Google™ Map showing a line connecting locations, choose Google™ Map. Choosing this option opens a dialog box that allows you to make choices, such as whether you prefer to map discrete points or a connecting line. In mid-2018, Google made a change that has broken the option of mapping discrete points. Connecting lines between points still works. When ready, click OK. If connected to the Internet, Google Maps will launch in your browser displaying your map.
9. If you wish to add an image of the map to your Logger Pro file, capture it using a screen capture utility and save it as a jpg. In Logger Pro, choose Picture from the Insert menu, and select your image.
TIL 2938: What do I need to do to prepare for outdoor data collection?
TIL 2366: What is the Data Matrix and how is it used?
TIL 3301: How do I move data from a LabQuest to a computer?