Field mode

Field mode provides phone controls for signal hunting, direction finding, and passive radar. Prepare the active workspace on a desktop, then connect the phone to the same server.

Connect your phone

Open Library → Field and scan the QR code. The link includes the server token, which field mode stores and removes from the address bar. When the desktop uses localhost, the QR code offers a reachable LAN address.

You can also open /field directly from a browser that can reach the server.

Missions

Available missions depend on the active workspace. Each controls one node.

Mission	Required node	Controls
Fox hunt	Signal hunt	Level, rising/falling indication, variable-rate clicks, start/stop
DF drive	Direction finder	Compass, guidance, map
Radar watch	Passive radar	Range–Doppler surface and tracks

Fullscreen and screen wake lock are available where supported by the browser.

Driving to a signal

DF drive orients the compass using GPS course over ground, not the phone's compass sensor. A connected Triangulation node provides crossing and approach guidance. Without it, the bearing display still works.

Turn-by-turn

Configure a routing backend for routes, next manoeuvres, and distances. Spoken directions become available after a touch interaction. The routing key stays on the server.

Nav mode	Destination
Auto	Crossing waypoint until convergence, then the location estimate
Direct	Current location estimate
Off	Heading guidance only

Routes update when you leave the route, the target moves, or the guidance phase changes. If routing is unavailable, the screen reports the reason and keeps heading guidance.

Navigate in Maps opens the target in the phone's navigation app. Open it again when the target changes; the browser cannot update an already open native navigation session.

Maps without internet

Place basemap.pmtiles beside the server database for an offline basemap. Otherwise, field mode uses the online style. Without either map, bearings, routes, and markers appear on a blank background.