Bluetooth GNSS APK

Enhanced Bluetooth GNSS for Superior Location Accuracy

Overview

• Bluetooth GNSS technology allows users to connect compatible external GPS/GNSS receivers to their Android devices, significantly improving location accuracy for mapping and navigation applications.

• This solution is ideal for professionals and enthusiasts who require higher precision than standard smartphone GPS can provide.

Key Features

• Multi-Constellation Support – Works with GPS, Galileo, GLONASS, and BeiDou satellite systems for enhanced positioning reliability.

• Android Compatibility – Fully supports Android 14 (tested on Samsung Galaxy S24).

• Mock Location Integration – Utilizes Android’s Developer Option for "mock location" to feed precise GNSS data into Maps and Navigation apps.

• RTK (Real-Time Kinematic) Support – Enables centimeter-level accuracy when used with RTK-capable GNSS devices and NTRIP (Networked Transport of RTCM via Internet Protocol) correction streams.

Tested Bluetooth GNSS/GPS Devices

The following devices have been verified for compatibility:

• Bad Elf GPS PRO+ – High-precision GNSS receiver with multi-constellation support.

• Bad Elf Flex – Compact and portable GNSS solution for fieldwork.

• u-blox M8030 – Professional-grade GNSS module with high sensitivity.

• ArduSimple u-blox F9 – Supports RTK and NTRIP for survey-grade accuracy.

Advanced Accuracy Reporting (u-blox Devices Only)

• Instead of relying on the traditional HDOP × CEP (Horizontal Dilution of Precision × Circular Error Probable) method, the app extracts PUBX accuracy messages directly from u-blox devices.

• This metric matches the same accuracy value displayed in the U-Center PC software when connected via USB, ensuring consistency and reliability.

RTK & NTRIP Support for Professional Applications

• Ideal for surveying, drone mapping, and precision agriculture.

• Requires an RTK-enabled GNSS device (e.g., ArduSimple u-blox F9) and an NTRIP correction service.

• Accuracy can reach centimeter-level depending on the GNSS hardware and correction data quality.

Use Cases

• Field Surveying – Achieve high-precision measurements for land surveys.

• Autonomous Vehicles & Drones – Improve navigation accuracy in robotics and UAV applications.

• Outdoor Navigation – Enhanced hiking, geocaching, and off-road navigation experiences.

• Fleet Tracking – More accurate logistics and asset tracking.

For users who demand superior location accuracy beyond standard smartphone GPS, Bluetooth GNSS solutions provide a powerful alternative.

With support for RTK, multi-constellation signals, and compatibility with leading GNSS hardware, this technology ensures professional-grade positioning for various applications.

FAQ

Q: How does mock location integration work?

A: Android’s Developer Option for "mock location" allows the GNSS receiver to feed high-accuracy positioning data directly into mapping apps (Google Maps, Waze, or GIS applications). This bypasses the smartphone’s internal GPS, ensuring superior precision.

Q: What is RTK, and how does it improve accuracy?

A: Real-Time Kinematic (RTK) is an advanced GNSS correction technique that processes real-time corrections (via NTRIP streams) to achieve 1-3 cm accuracy. This is ideal for surveying, drone mapping, and precision agriculture.

Q: Do I need an internet connection for RTK corrections?

A: Yes, RTK requires an internet connection (Wi-Fi/mobile data) to receive NTRIP correction data from a base station or correction service. However, the GNSS receiver can still function without corrections, but with reduced accuracy (~1-3 meters).

Version History

v2.1.4——12 Aug 2025

Connect to Bluetooth GPS receivers. Download the latest version of Bluetooth GNSS to enjoy new features and updates immediately!

*2.1.4

- restore auto reconnect feature

- add top disconnect button to stop auto reconnect job

*2.1.2

- updated targetsdk as per new googleplay requirements

- removed old 'location high accuracy mode' check as doesnt work with current targetsdk on many phones

- temporarily remove autoreconnect feature until recode/retested well - user reported no button/way to stop it

*2.1.0

- better support for fused location providers (google maps) but need more testing

- new map view, can long tap to set lat lon offsets

- settings can set time location time offset

- app structure overhaul and ui redraw now reactive per params without needing full rebuild of screen components