> For the complete documentation index, see [llms.txt](https://docs.holybro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.holybro.com/gps-and-rtk-system/m8n-m9n-m10-gps/micro-m10-m9n-gps/overview.md).

# Overview

<figure><img src="/files/AwMUztSM8JGmwRBJ2Lyq" alt=""><figcaption></figcaption></figure>

## Overview <a href="#descriptions" id="descriptions"></a>

These Micro GPS uses multi-constellation GNSS powered by u-blox M10 or M9N, a concurrent GNSS receiver which can receive and track multiple GNSS systems. Owing to the multi-band RF front-end architecture all four major GNSS constellations, GPS,Galileo, GLONASS and BeiDou can be received concurrently. It also comes with the IST8310 compass. \
\
The high-gain 25 x 25 mm2 patch antenna provides excellent performance and the omnidirectional antenna radiation pattern increases flexibility for device installation.

{% hint style="warning" %}
**Firmware Support for M10 GPS:** PX4 1.14, ArduPilot 4.3, INAV 5.0.0, Betaflight 4.3.0 or newer is required.
{% endhint %}

## Specification

<table><thead><tr><th width="176"></th><th width="232">Holybro Micro M10 GPS</th><th width="243">Holybro Micro M9N GPS</th></tr></thead><tbody><tr><td><strong>GNSS Receiver</strong></td><td>Ublox M10</td><td>Ublox M9N</td></tr><tr><td><strong>Number of Concurrent GNSS</strong></td><td>Up to 4 GNSS<br>- BeiDou<br>- Galileo<br>- GLONASS<br>- GPS<br>- QZSS</td><td>Up to 4 GNSS<br>- BeiDou<br>- Galileo<br>- GLONASS<br>- GPS<br>- QZSS</td></tr><tr><td><strong>Frequency Band</strong></td><td>- GPS L1<br>- Galileo E1<br>- GLONASS L1<br>- BeiDou B1<br>- SBAS L1<br>- QZSS L1</td><td>- GPS L1<br>- Galileo E1<br>- GLONASS L1<br>- BeiDou B1<br>- SBAS L1<br>- QZSS L1</td></tr><tr><td><strong>Compass</strong></td><td>IST8310</td><td>IST8310</td></tr><tr><td><strong>Output Protocol</strong></td><td>- UBX (U-blox)<br>- NMEA</td><td>- UBX (U-blox)<br>- NMEA</td></tr><tr><td><strong>Accuracy</strong></td><td>2.0m CEP</td><td>1.5m CEP</td></tr><tr><td><strong>Nav. Update Rate</strong> </td><td>Up to 25 Hz (single GNSS),<br>Up to 10 Hz (4 concurrent GNSS)</td><td>Up to 25 Hz (4 concerrent GNSS)</td></tr><tr><td><strong>GNSS Augmentation System</strong></td><td>EGNOS, GAGAN, MSAS and WAAS<br>QZSS: L1S</td><td>EGNOS, GAGAN, MSAS and WAAS<br>QZSS: L1S </td></tr><tr><td><strong>Default Baud Rate</strong></td><td>115200</td><td>115200</td></tr><tr><td><strong>Input Voltage</strong> </td><td>4.7-5.2V</td><td>4.7-5.2V</td></tr><tr><td><strong>Port Type</strong></td><td>JST-GH-6P</td><td>JST-GH-6P</td></tr><tr><td><strong>Antenna</strong></td><td>25 x 25 x 4 mm ceramic patch antenna</td><td>25 x 25 x 4 mm ceramic patch antenna</td></tr><tr><td><strong>Power consumption</strong></td><td>Less than 200mA @ 5V</td><td>Less than 200mA @ 5V</td></tr><tr><td><strong>Operating Temperature</strong></td><td>-40~80C</td><td>-40~80C</td></tr><tr><td><strong>Dimension</strong></td><td>- 32 x 26 x 9mm (w/o Case)<br>- 34 x 28 x 11mm (With Case)</td><td>- 32 x 26 x 9mm (w/o Case)<br>- 34 x 28 x 11mm (With Case)</td></tr><tr><td><strong>Weight</strong></td><td>- 14g (w/o Case)<br>- 16g (With Case)</td><td>- 14g (w/o Case)<br>- 16g (With Case)</td></tr><tr><td><strong>Other</strong></td><td>- LNA MAX2659ELT+ RF Amplifier<br>- Rechargeable Farah capacitance<br>- Low noise 3.3V regulator</td><td>- LNA MAX2659ELT+ RF Amplifier<br>- Rechargeable Farah capacitance<br>- Low noise 3.3V regulator</td></tr></tbody></table>

* **M8N:** Concurrent reception of up to 3 GNSS (GPS, Galileo, GLONASS, BeiDou)


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