# Using an external GPS with Qfield **URL:** \ **Category:** Ask the Community\ **Tags:** gh-import\ **Created:** [14 May 2025 02:53 UTC](https://community.qfield.org/t/using-an-external-gps-with-qfield/740 "2025-05-14T02:53:51Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![system](https://europe1.discourse-cdn.com/flex018/uploads/qfield/original/1X/7d3726da0ef5099a1e135505c03d2f125d527aae.png) [@system](https://community.qfield.org/u/system)\ **Post date:** [14 May 2025 02:53 UTC](https://community.qfield.org/t/using-an-external-gps-with-qfield/740/1 "2025-05-14T02:53:51Z")
Hi All, I was wondering what is the best external GPS unit to use with Qfield? Thanks * * * _Imported from [GitHub discussion](https://github.com/opengisch/qfield/discussions/2676) by @careyshan on 2022-04-01T08:01:40Z_ ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex018/uploads/qfield/original/1X/7d3726da0ef5099a1e135505c03d2f125d527aae.png) [@system](https://community.qfield.org/u/system)\ **Post date:** [14 May 2025 02:53 UTC](https://community.qfield.org/t/using-an-external-gps-with-qfield/740/2 "2025-05-14T02:53:52Z")
Hi careyshan i tested reach rs2 from emlid successfully and i know that the rs2 is used from different people in combination with QField too. Tests with other devices are next on my agenda. i’ll let you know about my results. Potentially all devices which can send a NMEA protocoll through bluetooth should be able to connect to QField directly. * * * _Imported from [GitHub comment](https://github.com/opengisch/QField/discussions/2676#discussioncomment-2507115) by @lindacamathias on 2022-04-05T10:28:58Z_ ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex018/uploads/qfield/original/1X/7d3726da0ef5099a1e135505c03d2f125d527aae.png) [@system](https://community.qfield.org/u/system)\ **Post date:** [14 May 2025 02:53 UTC](https://community.qfield.org/t/using-an-external-gps-with-qfield/740/3 "2025-05-14T02:53:53Z")
Brilliant - that is great info to know. Thanks lindacamathias * * * _Imported from [GitHub comment](https://github.com/opengisch/QField/discussions/2676#discussioncomment-2508728) by @careyshan on 2022-04-05T14:38:01Z_ ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex018/uploads/qfield/original/1X/7d3726da0ef5099a1e135505c03d2f125d527aae.png) [@system](https://community.qfield.org/u/system)\ **Post date:** [14 May 2025 02:53 UTC](https://community.qfield.org/t/using-an-external-gps-with-qfield/740/4 "2025-05-14T02:53:55Z")
Hello careyshan, In the past i used a Trimble Catalyst with mock location via Trimble Manager app and it worked great in QField. I know that this antenna now also has a bluetooth option, but still haven’t got one for testing * * * _Imported from [GitHub comment](https://github.com/opengisch/QField/discussions/2676#discussioncomment-2510053) by @geomondego on 2022-04-05T17:35:53Z_ ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex018/uploads/qfield/original/1X/7d3726da0ef5099a1e135505c03d2f125d527aae.png) [@system](https://community.qfield.org/u/system)\ **Post date:** [14 May 2025 02:53 UTC](https://community.qfield.org/t/using-an-external-gps-with-qfield/740/5 "2025-05-14T02:53:56Z")
Leica Zeno FLX100 ZM does also work with QField. Further information and tests to come .. * * * _Imported from [GitHub comment](https://github.com/opengisch/QField/discussions/2676#discussioncomment-2510639) by @lindacamathias on 2022-04-05T19:05:00Z_ ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex018/uploads/qfield/original/1X/7d3726da0ef5099a1e135505c03d2f125d527aae.png) [@system](https://community.qfield.org/u/system)\ **Post date:** [14 May 2025 02:53 UTC](https://community.qfield.org/t/using-an-external-gps-with-qfield/740/6 "2025-05-14T02:53:58Z")
We have REACH RS2 and M2 here, both work fine, though we found on our devices (tablet samsung active tab 3), that TCP connections might be more stable at least with RS2 (bluetooth issues with android and firmware, recent updates may have fixed some issues), in that case we use the Lefebure NTRIP app additionally and provide mock locations to the system (enable android developer settings, then set mock location app in developer options). The M2 currently has a few issues with getting NTRIP and sending TCP via WLAN Hotspot on tablet. QField is recommended to connect via bluetooth directly (see comment of lindacamathias), so if your bluetooth connection is stable, go for that (more metadata from NMEA than system). * * * _Imported from [GitHub comment](https://github.com/opengisch/QField/discussions/2676#discussioncomment-2511639) by @Marwe on 2022-04-05T22:24:13Z_ ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex018/uploads/qfield/original/1X/7d3726da0ef5099a1e135505c03d2f125d527aae.png) [@system](https://community.qfield.org/u/system)\ **Post date:** [14 May 2025 02:53 UTC](https://community.qfield.org/t/using-an-external-gps-with-qfield/740/7 "2025-05-14T02:53:59Z")
Hello, we are using a “Leica GS18 T GNSS RTK Rover” with a “Leica CS35 Captivate tablet” (windows). We installed the “windows-version” of QField. I’m trying to connect the antenna to QField via Bluetooth, but I was not succesful yet. Has anyone experience with this equipment? Theoretically the RTK Rover can send the NMEA through bluetooth and the NMEA sentences correspond to those which can be read by QField. However, in the positioning settings of QField I cannot find the device. Any help is appreciated. Thanks Matthias * * * _Imported from [GitHub comment](https://github.com/opengisch/QField/discussions/2676#discussioncomment-4851653) by @MH-Mueller on 2023-02-02T13:23:40Z_ ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex018/uploads/qfield/original/1X/7d3726da0ef5099a1e135505c03d2f125d527aae.png) [@system](https://community.qfield.org/u/system)\ **Post date:** [14 May 2025 02:54 UTC](https://community.qfield.org/t/using-an-external-gps-with-qfield/740/8 "2025-05-14T02:54:01Z")
MH-Mueller , I do not have this device with me, however as a generic statement, Bluetooth connection to external antennas on windows go through a virtual serial port created by the OS. You do that by connecting to your antenna via Bluetooth using Windows itself, which will create a serial port QField can sue (Windows instructions here: [https://junipersys.com/support/article/14876](https://junipersys.com/support/article/14876)). Once connected, you can open QField, go to the settings’ positioning tab and click on the ( add ) button. Then, pick up the serial port receiver type, and choose the right COM (usually COM3 or COM4). * * * _Imported from [GitHub comment](https://github.com/opengisch/QField/discussions/2676#discussioncomment-4868374) by @nirvn on 2023-02-04T08:39:50Z_ ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex018/uploads/qfield/original/1X/7d3726da0ef5099a1e135505c03d2f125d527aae.png) [@system](https://community.qfield.org/u/system)\ **Post date:** [14 May 2025 02:54 UTC](https://community.qfield.org/t/using-an-external-gps-with-qfield/740/9 "2025-05-14T02:54:02Z")
nirvn, thanks for your advices! Now it’s working. * * * _Imported from [GitHub comment](https://github.com/opengisch/QField/discussions/2676#discussioncomment-4881939) by @MH-Mueller on 2023-02-06T12:36:03Z_