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# SparkPNT GNSS Flex Module - mosaic-X5

**Type:** Product page · **SKU:** GPS-28138 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/sparkfun-sparkpnt-gnss-flex-module-mosaic-x5-rtk-high-precision.html ([markdown](https://core-electronics.com.au/sparkfun-sparkpnt-gnss-flex-module-mosaic-x5-rtk-high-precision.html.md))

SparkPNT GNSS Flex Modules are plug-in boards featuring different GNSS receivers. They are designed to be easily swapped for repairs and pin-compatible...

## Pricing

- **Price:** $1,009.95 (inc GST) — $918.14 AUD, exc GST
- **Quantity discounts:** 5+ $890.59 (exc GST) · 25+ $872.23 (exc GST) · 100+ $872.22 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 07 and Sep 11.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=GPS-28138:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/GPS-28138:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

SparkPNT GNSS Flex Modules are plug-in boards featuring different GNSS receivers. They are designed to be easily swapped for repairs and pin-compatible for upgrades. The boards have two 2x10-pin, 2mm pitch female headers connecting to carrier boards. Using a standardized pinout for the mosaic-X5 GNSS receiver, these pins break out the USB, UART (x4), and SD card interfaces and the PPS or event signals.

This SparkPNT GNSS Flex Module features the Septentrio mosaic-X5, a compact, ultra-low power, multi-band, multi-constellation, high-precision GNSS receiver. The receiver supports the GPS (USA), GLONASS (Russia), Beidou (China), Galileo (Europe), and NavIC (India) constellations, including regional systems (i.e., SBAS and QZSS). With its [Real Time Kinematics](https://learn.sparkfun.com/tutorials/813) (RTK) capabilities, the module can achieve a horizontal accuracy of 6mm (~0.25in), vertical accuracy of 1cm (~0.4in) using RTK, and timing precision of 5ns (5 billionths of a second). It also features Septentrio's unique [AIM+ technology](https://www.septentrio.com/en/learn-more/advanced-positioning-technology/aim-jamming-protection) for interference mitigation and anti-spoofing, ensuring best-in-class reliability and scalable position accuracy.

The mosaic-X5 is a sophisticated module with an internal web server that can be utilized with any web browser. On the GNSS Flex module, the web server is accessed through either the USB data pins from the standard GNSS Flex headers or the Ethernet PHY of the mosaic-X5, which is broken out on a third 2x10-pin 2mm pitch female header.

For the users who prefer a command-line interface, Septentrio has you covered. Users can still control and configure the mosaic-X5 module through a CLI, which is helpful for scenarios such as production line testing (in fact, that is how Sparkfun test this board) or remote access.

### Features & Specs

**mosaic-X5 GNSS Flex Module:**

- Septentrio mosaic-X5 GNSS Receiver
    - GNSS Constellations:
        - GPS (USA)
        - GLONASS (Russia)
        - Galileo (EU)
        - BDS (China)
        - QZSS (Japan)
        - NavIC (India)
    - SBAS Systems:
        - WASS (USA)
        - SDCM (Russia)
        - EGNOS (EU)
        - MSAS (Japan)
        - GAGAN (India)
- Three 2x20-pin, 2mm-pitch female headers
    - 40-pin socket for GNSS Flex system
        - Power
            - USB
            - 3.3V
            - Backup power
        - USB data
        - UART (x4)
        - SD card
        - I2C bus
        - PPS signal (x2)
        - LED indicators (x2)
        - Event indicators (x2)
    - 20-pin socket for mosaic-X5 Ethernet PHY
- U.FL Connector:
    - GNSS Antenna *(Active, Multi-band)*

**mosaic-X5 GNSS Receiver:**

- Voltage Range: 3.135 to 3.465V
    - Max current: 500mA
- RTK Accuracy
    - Horizontal: **0.6cm***(±0.5ppm)*
    - Vertical: 1cm *(±1ppm)*
- Channels: 448 *(simultaneous tracking)*
- GNSS Frequency Bands:
    - GPS: `L1C/A`, `L1PY`, `L2C`, `L2P`, `L5`
    - GLONASS: `L1CA`, `L2CA`, `L2P`, `L3 CDMA`
    - Beidou: `B1I`, `B1C`, `B2a`, `B2b`, `B2I`, `B3`
    - Galileo: `E1`, `E5a`, `E5b`, `E5 AltBoc`, `E6`
    - QZSS: `L1C/A`, `L1 C/B`, `L2C`, `L5`
    - NavIC: `L5`
    - SBAS: `Egnos`, `WAAS`, `GAGAN`, `MSAS`, `SDCM` (`L1`, `L5`)
    - L-band
- Time to Fix
    - Cold Start: < 45s
    - Warm: < 20s
    - Reacquisition: 1s
- Timing Precision: 5ns
- Update Rate: 100Hz
- Latency: < 10ms
- `VANT` Voltage Range: 3.0 to 5.0V
    - Max current: 150mA
- Interfaces:
    - UART (x4)
    - Ethernet
    - USB device (2.0, HS)
    - SDIO (mass storage)
    - GPIO user programmable (x2)
    - Event markers (x2)
    - Configurable PPS out

### Documentation

- [Schematic](https://core-electronics.com.au/attachments/localcontent/schematic_1092979b19b.pdf)
- [KiCad Files](https://core-electronics.com.au/attachments/localcontent/kicad_files_44254b431ee.zip)
- [Board Dimensions](https://core-electronics.com.au/attachments/localcontent/dimensions_656399faacf.pdf)
- [STEP File](https://docs.sparkfun.com/SparkFun_GNSS_Flex_System/SparkPNT_GNSS_Flex_Module_mosaic-X5/assets/3d_model/cad_model.step)
- [Hookup Guide](https://docs.sparkfun.com/SparkFun_GNSS_Flex_System)
    - Software: [RxTools](https://www.septentrio.com/en/products/gps-gnss-receiver-software/rxtools)
    - Correction Service: [Agnostic Corrections](https://www.septentrio.com/en/products/correction-services/precise-point-positioning-services-land/agnostic-corrections-program-gnss-correction-services)
- Component Datasheets:
    - [mosaic-X5 Datasheet](https://core-electronics.com.au/attachments/localcontent/mosaic_hardware_manual_v1_3896681e0a5.pdf)
        - [mosaic-X5 Brochure](https://core-electronics.com.au/attachments/localcontent/Septentrio_mosaic-X5_LR_96300e11412.pdf)
        - [Firmware Manual *(v4.14.10.1)*](https://core-electronics.com.au/attachments/localcontent/mosaic-X5_firmware_v4_21308e99aad.pdf)
    - [Septentrio's GNSS Modules](https://web.septentrio.com/SF-SSN-home)
    - [mosaic-X5 Product Page](https://web.septentrio.com/SF-SSN-module)
- [Building a GNSS System](https://www.sparkfun.com/gps)
- [GitHub Hardware Repo](https://github.com/sparkfun/SparkFun_GNSS_Flex_System)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/G/P/GPS-28138-1.jpg)