Field mode
Field mode puts signal hunting, direction finding, and passive radar on your phone. Set up the workspace on a desktop first, then connect the phone to the same server.
Connect a phone
Open Library → Field and open the link on the phone. It carries the server token, which field
mode saves and removes from the address bar. If the desktop is on localhost, the link uses a LAN
address instead. You can also open /field in any browser that reaches the server.
The phone must reach the server. The desktop app and sdrmm --bind 127.0.0.1:<port> only listen
on this computer; run sdrmm with the default --bind 0.0.0.0:8080.
Phone location needs HTTPS. Away from home, use a tunnel.
Missions
Each mission drives one node in the active workspace:
| Mission | Needs | Shows |
|---|---|---|
| Fox hunt | Signal hunt | Level, rising or falling, clicks that speed up |
| DF drive | Direction finder | Compass, guidance, map |
| Radar watch | Passive radar | Range-Doppler display and tracks |
Fullscreen and keep-screen-on work where the browser supports them.
DF drive
The compass turns with your GPS heading, not the phone's compass. A Triangulation node adds guidance on where to drive. Without it, you still get bearings.
With a routing service configured, you also get turn-by-turn directions. Spoken directions start after you tap the screen.
| Nav mode | Drives to |
|---|---|
| Auto | A crossing point until the estimate settles, then the estimate |
| Direct | The current estimate |
| Off | Nowhere; heading guidance only |
Navigate in Maps hands the target to your phone's navigation app. Tap it again when the target moves; the browser cannot update an open navigation session.
Offline maps
Put basemap.pmtiles next to the server database for maps without internet. Without it, field
mode uses the online map, or a blank background if that is unreachable.