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4G NTRIP Master Hookup Guide

If you recevied 4G NTRIP as part of a simpleSSR kit, you don’t need this tutorial, use the simpleSSR hookup guide.

Hardware overview:

The 4G NTRIP Client is the easiest way to connect your simpleRTK2B board to your preferred NTRIP service. Just configure your NTRIP credentials and SIM Card parameters, introduce your SIM card, and let the module do the rest! In this guide we will explain you everything you need to know about this accessory.

The module has the following connections:

  • XBee socket. This module is only compatible with High Power (HP) XBee Sockets.
  • 2x uFL (also called IPEX) connectors for the radio communication. It is recommended to use both antennas for best performance.
  • microSIM holder, like your mobile phone.
  • Status LED:
    • OFF: device OFF or in firmware upgrade mode
    • ON: boot
    • Fast blink (5 blinks/second): all good! device in run mode
    • Slow blink (1 blink/second): device in command mode
    • Fast+slow blink (irregular blink): modem is trying to connect to network.
      This status should last a few seconds only in normal operation.
      If this status remain active for long period, it means that the modem can’t connect to the network, it could be for several reasons (wrong APN, modem antennas not connected, bad cellular network coverage, …)

4G NTRIP Client hardware overview 

Variants:

Due to local regulations we had to design 2 variants:

  • Europe: for Europe, but also Middle East & Asia, compatible with:
    • 4G Bands (MHz): B1(2100), B3(1800), B7(2600), B8(900), B20(800)
    • 3G Bands (MHz): B2(2100), B8(900)
    • 2G Bands (MHz): B3(1800),B8(900)
  • North America: For USA* & Canada, compatible with 4G and 3G networks.
    • 4G Bands (MHz): B2(1900), B4(1700), B5(850), B12/B13 (700)
    • 3G Bands (MHz): B2(1900), B5(850)

*Only compatible with AT&T, T-Mobile and virtual operators working on these networks. Not compatible with Verizon SIM cards.

The variants might be compatible with other countries, but there’s no easy way to generalize a name for it. If this is your case, check the compatibility table in the product page, or contact us and we will check if one of the variants is compatible with your country.

Installing the 4G NTRIP Client:

The simpleRTK2B should be OFF. Always remove the power before connecting/disconnecting anything from a HP (High Power) XBee socket. Don’t introduce the SIM card yet.

If you received the 4G NTRIP Client as part of a kit, it’s already installed:

Before connecting for the first time, it is important that you disable the ZED-F9P data output to the XBee socket.

If you own a simpleRTK2B V3 version, and your board it’s still with default configuration, just move the switch to XBEE-to-UART2. UART2 is disabled by default so this will do the job.

simpleRTK2B V3 + 4G NTRIP Client

If you own a simpleRTK2B V1, you will need the adapter for second XBee socket with High Power.simpleRTK2B + 4G NTRIP Client

Now plug the 4G NTRIP Client on the HP (High Power) XBee socket.

Now it’s time to connect the antennas:

It is important to connect the 2 antennas to get the expected results.

If you have the internal antennas, try to glue them to the inner side of your plastic box. Don’t glue them to metallic surfaces. For tests on your desk, they also hold themselves in the air, just try to place them as far away as possible from each other for best performance.

simpleRTK2B + 4G NTRIP Client

If you have external antennas, try to connect them in the most outdoor possible location.

Parameters file:

In order to configure the 4G NTRIP Master, you will have to create your own Parameters File.

  1. Fill in the gaps and click on “Generate Parameters File”.
  2. Store this file as we will use it later.
    You can change the name of the file to keep on your PC different Parameters Files.
General settings
SIM PIN:
APN name
APN username
APN password
PointPerfect settings


PointPerfect Client ID *You will need to send the .json credentials from Thingstream via the configurator tool, please use the original file name
NTRIP Client settings
NTRIP Server name
Server port
NTRIP credentials
NTRIP mountpoint
TCP socket client settings
TCP server hostname
TCP server port
TCP server authentication
Device ID (Only if NMEA-PUBX is selected in the previous step)
NTRIP Server settings
NTRIP Caster hostname
Caster port
NTRIP Server credentials
NTRIP Server Mountpoint




Firmware and parameter update instructions

  1. Download the 4G NTRIP Master configuration tool (see below tthe link), unzip it in a folder
  2. Make sure your UART1/UART2 communications are disabled
  3. With the modem on top of your receiver, connect a USB cable to your PC and to the POWER+XBEE port
  4. Run the 4G NTRIP Master configuration tool
  5. Select proper COM port, make sure it is the POWER+XBEE COM port
  6. Want to update firmware? Select firmware file (m2mapz*.bin)
  7. Want to update parameters? Select parameters file (.txt)
  8. Want to use your own PointPerfect credentials? Select credentials file (.json) as downloaded from Thingstream.
  9. Set a Custom command ONLY if needed
    The first time after updating the firmware, you will see a security issue.
    Please send your IMEI at info@ardusimple.com and we will provide a customized command to unlock your device.
  10. Click send file and follow instructions on screen
  11. When the process ends, remember to enable communications on UART1/UART2 again and you are ready to go
 If you are a curious user, you might want to stay connected via POWER+XBEE connector, the 4G NTRIP Master will output some status messages on this port if there is any problem.

4G NTRIP Master Firmware

Last version: FW V2.14
*** 4G NTRIP Master Changelog ***

2022-06-24 - FW V2.14-20220624
* Added PointPerfect support for non u-blox receivers

2022-04-13 - FW V2.13-20220413 * Added TCP socket client functionality * Added NTRIP Server functionality * Added PointPerfect functionality * Compatibility with APN authentication 2020-09-25 - FW V1.53-20200925 * Reconnection speed dramatically improved after restart or connection loss * Pins with leading zeros are properly printed during startup 2020-09-15 - FW V1.52-20200915 * Faster recovery after caster stops sending corrections 2020-07-27 - FW V1.51-20200727 * Improved usability for Enterprise SIMs 2020-07-20 - FW V1.4-20200720 * Compatibility with Enterprise SIMs 2020-07-02 - FW V1.3-20200702 * Stability fixes 2020-06-25 - FW V1.2-20200625 * Improved security 2020-06-07 - FW V1.1-20200607 * SIM pin fix * SAPOS caster fix * NTRIP credentials multi-line fix 2020-05-29 - FW V1.0-20200529 * First release

4G NTRIP Master Configuration Tool

Last version: V1.6 updated on 2022-06-22
*** 4G NTRIP Master Configuration Tool***

2022-06-22 - V1.6
* FIX: issue with North America modems corrected
* NEW: added GUI terminal for easy copy&paste when debugging
* NEW: added button to remove files from tool to avoid restarting the app

2022-05-12 - V1.3
* FIX: add root-CA certificate to allow using ArduSimple FREE PointPerfect corrections
* CHANGE: improved GUI behavior

2022-04-13 - V1.1
* First release

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