GPS Marker and Accuracy
The GPS marker shows your position on the mobile map. The GPS button shows the quality of the fix. On desktop, you are usually reviewing saved data rather than following a live position.
The Marker And The Button
The marker sits at your position on the map. The button controls GPS and recentring, and changes appearance when a tracklog is recording or paused. See GPS Button for the illustrated guide to every button state and what tapping does.
The Marker Ring
When using Ring and direction line, the ring around the GPS marker has a fixed size, thickness, and colour that you set under Settings > GPS Marker. It does not grow or shrink with GPS accuracy. OMN4 shows how confident the current fix is through the GPS button colour instead, described in the next section.
How OMN4 Shows Fix Confidence
The GPS button is green when the device reports accuracy of 10 m or better and the fix is no more than 60 seconds old. It is orange when accuracy is poorer, the position is older, or accuracy or age is unavailable. It pulses while searching for a live fix.
The marker can retain a previously known position while GPS searches again. A visible marker alone does not guarantee that the position is current; check the button too.
Why The Marker Disappears
If GPS is off or the device is not supplying a usable fix, OMN4 cannot draw a reliable live marker.
Customising The GPS Marker
On mobile, open Settings and then GPS Marker to adjust the marker appearance.
Choose Marker type:
- Ring and direction line is the default. Adjust Ring size, Ring thickness, Ring colour, Inner shading, Direction line thickness, and Direction line colour. The preview shows your changes as you make them.
- Icon uses a picture for your position marker. Tap Marker icon to open Select Icon, choose an icon and tap Select. Use Icon size to adjust it. Circle Hat Red is the initial choice, including the red ring and pointer available in earlier versions of OMN.
An icon turns with the available heading. If no heading is available, it stays upright. You can also choose an imported icon from Select Icon. If the chosen image is unavailable, OMN4 displays the ring and direction line until it is available again.
For your own image, choose Import in Select Icon and select a PNG file. See Import and Manage Icons for the steps, screenshots and file limits.
Switching marker type keeps your icon choice and ring settings, so you can switch back later. These controls change the marker's appearance; they do not change GPS accuracy.
The marker type, icon choice, icon size and ring appearance settings sync through your OMN account. After another mobile device signs in and syncs, it uses the same marker appearance. Imported images sync too; the ring may appear until the image has arrived. If you changed a marker setting on more than one device while they were offline, the most recent edit wins.