For a full description of this function, see below. Button Presets You can design & install your own set of buttons & choose to have them displayed using this option.Main screen graphic theme Options to change the contrast & screen brightness if you are having problems viewing the buttons.Screen always on Select this if you are constantly clicking on buttons, taking photo’s, or making voice recordings - if you’re not, then leave it blank so you have to switch the screen on each time, which uses less battery.Default photo source Generally you will take photo’s with the camera through this app., but you can chose to use photo’s already on the phone.Export Compass Heading Defines if and how the compass data should be exported to the GPX file.Use HDOP approximation Relates to additional calculations to improve the position accuracy (Horizontal Dilution of Precision).This information can be extremely useful later when updating OSM, and deciding whether to move an existing feature to align with the new trace & waypoints. Accuracy in GPX file Recommended - will result in the waypoint name including a figure approximating the possible error range in metres.Filename for named tracks Options for you to choose from if you have a preference for the naming of the files.One directory per track Recommended as this will result in all of the related voice recordings, photographs, text notes and the gpx trace all being stored in the same folder, named with the date and time of the gpx file creation.Although referred to as ‘external storage’ the tracks etc will actually be recorded in /storage/emulated/0/osmtracker. Most recent Android devices will not allow the saving of data in an external microSD or SD card. External storage (SD) directory Default is /osmtracker.your screen is likely to be on most of the time, the gps working, and you may be taking photographs and recordings as well - all of these will result in a heavy battery drain and it is recommended for extended usage to use the device with the power augmented. The frequency affects battery usage, however when using this app. GPS logging interval Choose the period between the recording of the position - for best accuracy select 0 or 1, each of which results in a recording each second.Ignore GPS clock If ticked will use the devices internal clock instead of the time provided within the GPS signal.Check GPS at startup When you start OSMTracker, if the GPS has been switched off, the programme will prompt you to turn it back on. Recommended to set this to High accuracy and the device will then use GPS, Wi-Fi and mobile networks to estimate the location.
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