There are several GPS-related sub-options a user may see within the main geoDVR Gen4 Options menu.  NOTE:  These sub-options are not necessarily grouped together and may appear in different areas of the main Options menu.

Update geoDVR Time to Match UTC Time

Selecting this item will sync the geoDVR Windows clock to UTC time when a GPS source is connected.  IMPORTANT:  This is recommended for applications using the geoDVR DSLR Camera Geotagging module.

Use External Garmin USB GPS

Select this option only if using a supported Garmin GPS receiver with the Garmin protocol rather than the internal geoDVR GPS receiver.  (Most geoDVR Gen4 users will NOT use this option.)

Use GSS Gimbal GPS

This menu item is only visible for geoDVRs using the Gyro-stabilized Systems (GSS) protocol and paired with a compatible gimbal camera manufactured by GSS.

Use GPS from MISB Stream

This menu item is only visible for geoDVRs with the MISB FMV Metadata Module enabled and paired with a compatible gyro-stabilized gimbal camera providing a MISB FMV / STANAG 4609 data stream.

Use Remote Geo Ethernet GPS

This option is generally used for geoDVRs paired with a compatible gyro-stabilized gimbal camera using the Remote GeoSystems Camera Target Footprint (CTF) protocol.

Use Internal or Serial GPS (Via COM Port)

This is the default option and uses the geoDVR Gen4’s internal GPS receiver, or allows for using an external Serial GPS receiver.  Selecting this menu item will open a Serial port settings window where the Port, Baud Rate, Bits and other related settings can be configured.

Show GPS Output

Checking this option will show advanced GPS data output (including the NMEA stream) in the System Output panel.

Record Continuous GPS Log (in addition to GPX logs)

This option is checked by factory default.  Once the geoDVR detects an adequate GPS signal it will begin logging GPS in a CSV file regardless of recording status.  Unchecking this option will disable this functionality.

Show GPS in Decimal Degrees

This option is checked by factory default.  Unchecking this option will display GPS in degrees, minutes, seconds in the “Last GPS Coordinates Received:” section of the geoDVR Interface in the lower right corner.  NOTE:  This is for display only. The GPX companion files will still log GPS in decimal degrees.

Limit GPS Embedding to 1 Hz

This option is checked by factory default.  This setting only applies when recoding videos with “embedded” GPS.  Currently only applies to MISB FMV / STANG 4609-spec .TS files and .AVI files with Remote GeoSystems “Whisper” embedding.  NOTE:  The GPX companion files will still log GPS at the original frequency.