The program constantly maintains a GPS connection even when the screen is turned off. This way you won't lose the GPS fix when your phone goes to sleep.

The program displays real-time information for satellites in the field of view of the device.

Supports:
• GPS (USA Navstar)
• GLONASS (Russia)
• GALILEO (European Union)
• QZSS (Japan)
• BeiDou / COMPASS (China)
• SBAS

You can also see the location determined by the network.
And thus, on one screen, compare the difference in location accuracy from two providers. Network provider and GPS provider.

GPS signal histograms:

• Carrier-to-noise ratio density of baseband satellites dB-Hz.

• Density of carrier-to-noise ratio at the antenna of DB-Hz satellites.

• Location of satellites in the sky (sky view)

Open source on Github:
https://github.com/StalkerExplorer/Location