Map view

Map view.

GNSS updates are displayed in real time on the map.

The GNSS updates are received through an Android foreground service, which means that the updates are processed continuously (as long as the app is active), regardless of the view currently displayed.

GNSS view

GNSS view.

GNSS detailed status (tap on heading for info):

Settings view

Settings view.

GNSS simulator works best if phone/tablet is not moving.

Algorithm: Start position is current lat/long randomised within ±0.1°, with an initial speed of 25 m/s (90 km/h) and an initial course randomised 0–360°. GNSS updates are randomised, speed change within ±5 m/s and course change within ±10°. Speed is constrained to 10–40 m/s.