> For the complete documentation index, see [llms.txt](https://docs.intrepidcs.com/vspy-3-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.intrepidcs.com/vspy-3-documentation/vehicle-spy-main-menus/main-menu-tools/tools-options/options-gps-setup.md).

# Options: GPS Setup

![Figure 1: A GPS receiver (Garmin GPS-II+)](/files/thgPFec3ksmMQC1TLD0u)

Vehicle Spy can acquire data from a GPS (Global Positioning System) receiver (Figure 1). This is setup in the Vehicle Spy Setup dialog. Open Vehicle Setup by clicking Tools-> [Options](/vspy-3-documentation/vehicle-spy-main-menus/main-menu-tools/tools-options.md).

On the GPS tab, you can select whether or not you want to use the receiver. If you select to use GPS hardware, you must select a communication port.

Whatever data you select will appear in [Messages view](/vspy-3-documentation/vehicle-spy-main-menus/main-menu-spy-networks/messages-view.md) once per second. You can select Location, Speed Over Ground, and/or Altitude. This selection is for the Messages view only. All the data is always available from the value source column for incoming messages (described below).

![Figure 2: Use the GPS tab to setup a serial GPS receiver.](/files/sjs2HOL8lXg1bZNZNFeL)

The data received by the GPS unit is available in the [Expression Builder](/vspy-3-documentation/shared-features-in-vehicle-spy/shared-features-expression-builder.md) under "[Misc](/vspy-3-documentation/shared-features-in-vehicle-spy/shared-features-expression-builder.md#misc-data-items)". GPS Altitude, Latitude, Longitude, Speed, and Valid are selectable parameters.

The latitude and longitude are always reported in degrees.

Vehicle Spy supports most GPS receivers with a NMEA-0183 output accessible over a Comm port interface.


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