FCC ID: 2A3MU-C5 Geodetic GNSS Receiver

EFIX C5 GNSS USER GUIDE Survey & Engineering | March 2022 By surveyors, for surveyors Table of Content Table of Content Table of Content ............................................................................................................... 2 Preface ............................................................................................................................ 5 Copyright ........................................................................................................................... 5 Safety Warnings ................................................................................................................. 5 1 Introduction .............................................................................................................. 6 1.1 Safety Information ....................................................................................................... 6 1.1.1 Warnings and Cautions ..................................................................................... 6 1.2 Regulations and Safety ................................................................................................ 6 1.2.1 Use and Care ..................................................................................................... 7 1.3 Technical Support ........................................................................................................ 7 1.4 Disclaimer .................................................................................................................... 7 1.5 Your Comments ........................................................................................................... 7 2 Getting Started with C5 ............................................................................................. 8 2.1 About the Receiver ...................................................................................................... 8 2.2 Parts of the Receiver .................................................................................................... 8 2.2.1 Front Panel ........................................................................................................ 8 2.2.2 Receiver Ports ................................................................................................. 10 2.3 Batteries and Power .................................................................................................. 11 2.3.1 Built-in batteries ............................................................................................. 11 2.3.2 Charging the Battery ....................................................................................... 11 2.3.3 Battery Safe .................................................................................................... 11 2.3.4 External Power Supply .................................................................................... 12 2.4 Product Basic Supply Accessories .............................................................................. 13 2.4.1 Base Kit Basic Supply ...................................................................................... 13 2.4.2 Rover Kit Basic Supply ..................................................................................... 14 2.5 Connecting to an Office Computer ............................................................................ 15 2.6 Connecting to a Controller ........................................................................................ 16 2.6.1 Connecting via Wi-Fi with eField Software ..................................................... 16 2.6.2 Connecting via Bluetooth with eField Software ............................................. 17 2.7 Downloading Logged Data ......................................................................................... 19 2.7.1 FTP Download ................................................................................................. 19 2.7.2 Web Server Download .................................................................................... 22 2.7.3 USB Download ................................................................................................ 22 3 Equipment Setup and Operation .............................................................................. 24 EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 2 Table of Content 3.1 Post-processing Base Station Setup ........................................................................... 24 3.2 Real-Time Base Station Setup .................................................................................... 26 3.3 Real-Time Rover Station Setup .................................................................................. 27 3.4 Working with the Tilt Compensation ......................................................................... 28 3.4.1 Operation Steps .............................................................................................. 28 3.4.2 Notes of using tilt measurement .................................................................... 30 4 Configuring Through a Web Browser ........................................................................ 32 5.1 Status Menu ............................................................................................................... 33 5.1.1 Position Submenu ........................................................................................... 33 5.1.2 Activity Submenu ............................................................................................ 34 5.1.3 Google Map Submenu .................................................................................... 34 5.2 Satellites Menu .......................................................................................................... 35 5.2.1 Tracking Table Submenu ................................................................................. 35 5.2.2 Tracking Info. Table Submenu ......................................................................... 36 5.2.3 Tracking Skyplot Submenu .............................................................................. 36 5.2.4 Satellite Activation Submenu.......................................................................... 37 5.3 Receiver Configuration Menu .................................................................................... 38 5.3.1 Description ..................................................................................................... 38 5.3.2 Antenna Configuration Submenu ................................................................... 39 5.3.3 Reference Station Settings Submenu ............................................................. 40 5.3.4 Receiver Reset Submenu ................................................................................ 40 5.3.5 Languages Submenu ....................................................................................... 41 5.3.6 User Management Submenu .......................................................................... 41 5.3.7 USB Function Switch ....................................................................................... 41 5.3.8 HCPPP Settings ............................................................................................... 48 5.4 Data Recording Menu ................................................................................................ 48 5.4.1 Log Settings Submenu .................................................................................... 48 5.4.2 FTP Push Settings Submenu ........................................................................... 51 5.4.3 FTP Push Log Submenu ................................................................................... 51 5.4.4 Data Download Submenu ............................................................................... 52 5.5 IO Settings Menu ....................................................................................................... 53 5.5.1 IO Settings Submenu ...................................................................................... 53 5.6 Module Setting Menu ................................................................................................ 61 5.6.1 Description Submenu ..................................................................................... 61 5.6.2 WiFi Submenu ................................................................................................ 61 5.6.3 Bluetooth Settings Submenu .......................................................................... 62 5.6.4 Radio Settings Submenu ................................................................................. 62 5.7 Firmware Menu ......................................................................................................... 63 EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 3 Table of Content 5.7.1 Firmware Info Submenu ................................................................................. 64 5.7.2 Hardware Version Submenu ........................................................................... 64 5.7.3 Config File Submenu ....................................................................................... 64 5.7.4 System Log Download Submenu .................................................................... 65 5.7.5 User Log Submenu .......................................................................................... 65 5.7.6 Firmware Update Submenu ............................................................................ 65 5.7.7 GNSS Board Upgrade Submenu ...................................................................... 66 5.7.8 GNSS Registration Submenu ........................................................................... 66 EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 4 Preface EFIX | EFIX Geomatics Co., Ltd. All rights reserved. The EFIX is trademark of EFIX Geomatics Co., Ltd. All other trademarks are the property of their respective owners. All product and brand names mentioned in this publication are trademarks of their respective The Global Positioning System (GPS) is operated by the U.S. Government, which is solely responsible for the accuracy and maintenance of the GPS network. Accuracy can also be affected by poor satellite geometry and obstructions, like buildings and heavy canopy. Preface Copyright Copyright 2020-2022 Trademarks holders. Safety Warnings EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 5 Introduction 1 Introduction The C5 GNSS receiver is a portable and fully functional device, which remains the internal radio module. Featuring full GNSS technology, it offers best-in-class GNSS signal tracking even in a harsh environment, enabling GNSS surveying beyond usual constraints. The C5 GNSS incorporates the latest innovations such as an inertial module (IMU) providing automatic pole-

tilt compensation in a very compact design. 1.1 Safety Information 1.1.1 Warnings and Cautions An absence of specific alerts does not mean that there are no safety risks involved. A Warning or Caution information is intended to minimize the risk of personal injury and/or damage to the equipment. equipment. WARNING - A Warning alerts you to a potential misused or wrong setting of the CAUTION - A Caution alerts you to a possible risk of serious injury to your person and/or damage to the equipment. 1.2 Regulations and Safety The receivers contain a built-in wireless modem for signal communication through Bluetooth wireless technology or through external communication datalink. Regulations regarding the use of the wireless modem vary greatly from country to country. In some countries, the unit can be used without obtaining an end-user license. However, in some countries, the administrative permissions are required. For license information, consult your local dealer. Bluetooth operates in license-free bands. Before operating a C5 GNSS receiver, determine if authorization or a license to operate the unit is required in your country. It is the responsibility of the end-user to obtain an operator's permit or license for the receiver for the location or country of use. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 6 Introduction 1.2.1 Use and Care This receiver is designed to withstand the rough environment that typically occurs in the field. However, the receiver is high-precision electronic equipment and should be treated with reasonable care. CAUTION - Operating or storing the receiver outside the specified temperature range will cause irreversible damage. 1.3 Technical Support If you have a problem and cannot find the information you need in this manual or EFIX website

(www.efix-geo.com), contact your local EFIX dealer from which you purchased the receiver(s). If you need to contact EFIX technical support, please contact us by email (support@efix-

geo.com) or Skype (support@efix-geo.com). 1.4 Disclaimer Before using the receiver, please make sure that you have read and understood this User Guide, as well as the safety information. EFIX holds no responsibility for the wrong operation by users and for the losses incurred by the wrong understanding about this User Guide. However, EFIX reserves the rights to update and optimize the contents in this guide regularly. Please contact your local EFIX dealer for new information. Your feedback about this user guide will help us to improve it in future revision. Please email your comments to support@ efix-geo.com. 1.5 Your Comments EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 7 Getting Started with C5 2 Getting Started with C5 2.1 About the Receiver The new C5 GNSS receiver offers integrated IMU-RTK technology to provide a robust and accurate GNSS positioning in any circumstances. Unlike the standard MEMS based GNSS receivers, the C5 GNSS IMU-RTK combines state-of-the-art GNSS RTK engine, calibration-free professional IMU sensor, 4D-3S initialization and advanced GNSS tracking capabilities. Survey projects are achieved with high productivity and reliability pushing the boundaries of conventional GNSS RTK survey. The receiver can be used as the part of an RTK GNSS system with EFIX eField software. Moreover, user can download the GNSS data that recorded in the internal memory of receiver To configure the receiver for performing a wide variety of functions, you can use the web interface by connecting the receiver with PC or smartphone through Wi-Fi. to a computer. 2.2 Parts of the Receiver located on the bottom of the unit. 2.2.1 Front Panel The following figure shows a front view of the receiver. The operating controls are all located on the front panel. Serial ports and connectors are EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 8 Front Panel The front panel contains two indicator LEDs and one button. Getting Started with C5 Power LED Correction LED Satellite LED Power button Name Color Description Yellow As a Base station: successfully transmitting differential data, the correction LED shows yellow. Correction LED Yellow / Green As a Rover station: successfully receiving differential data from Base station, the correction LED shows yellow when it is single or float, shows green when it is fixed. Power LED Red Yellow Under normal conditions red power light The power light shows yellow when charging The power light shows green when fully charged Satellite LED The light glitters every 5 seconds means searching for satellites The light glitters N times every second means it has got N satellites Power button Press and hold this button for 3 seconds to turn on or turn off the Works as a Power button receiver. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 9 Getting Started with C5 2.2.2 Receiver Ports The receiver ports contain one TNC radio antenna connector, one communication and power ports, one 5/8-11 threaded insert, and one nameplate. TNC radio antenna connector USB communication and power in port 5/8-11 threaded insert Port Name Description USB Type-C This port is a USB Type-C connector that port supports USB communications. Users can use USB Type-C Cable supplied with the system to download the logged data to a computer. Radio antenna Connect a radio antenna to internal radio of connector the receiver. And this connector is not used if you are using an external radio. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 10 Getting Started with C5 2.3 Batteries and Power 2.3.1 Built-in batteries 2.3.2 Charging the Battery The receiver has a built-in 6800 mAh rechargeable Lithium-ion battery. The rechargeable Lithium-ion battery is supplied partially charged. Charge the battery completely before using it for the first time. Charge via USB Type-C port. WARNING Charge and use the rechargeable Lithium-ion battery only in strict accordance with the instructions. Charging or using the battery in unauthorized equipment can cause an explosion or fire and can result in personal injury and/or equipment damage. To prevent injury or damage:

Do not charge or use the battery if it appears to be damaged or leaking. Charge the Lithium-ion battery only in a EFIX product that is specified to charge it. Be sure to follow all instructions that are provided with the battery charger. Discontinue charging a battery that gives off extreme heat or a burning odor. Use the battery only in EFIX equipment that is specified to use it. Use the battery only for its intended use and according to the instructions in the product documentation. 2.3.3 Battery Safe WARNING Do not damage the rechargeable Lithium-ion battery. A damaged battery can cause an explosion or fire and can result in personal injury and/or property damage. To prevent injury or damage:

Do not expose the battery to fire, high temperature, or direct sunlight. Do not immerse the battery in water. Do not drop or puncture the battery. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 11 Getting Started with C5 2.3.4 External Power Supply Provide the external power to the receiver by the USB Type-C Cable + Power Adapter. The Power Adapter is connecting with AC power of 100-240V, the output port of the Power Adapter connects with the USB Type-C Cable. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 12 Getting Started with C5 2.4 Product Basic Supply Accessories 2.4.1 Base Kit Basic Supply Item Picture C5 GNSS Receiver UHF Bar Antenna (410-470 MHz) USB Type-C Tribrach adaptor H.I. tape Tribrach with optical plummet Extension pole Auxiliary H.I. Tool EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 13 Getting Started with C5 Pole mounting Power Adapter. Transport Hard Case Base kit 2.4.2 Rover Kit Basic Supply Item Picture C5 GNSS Receiver UHF Bar Antenna (410-470 MHz) EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 14 Getting Started with C5 USB Type-C 2M Range Pole w/bag Auxiliary H.I. Tool Power Adapter. Transport Hard Case Rover kit 2.5 Connecting to an Office Computer The receiver can be connected to an office computer via a eField USB Type-C. Before you connect to the office computer, ensure that the receiver is powered on. The following figure shows how to connect to the computer for serial data transfer or settings:

EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 15 Getting Started with C5 USB Type-C 2.6 Connecting to a Controller 2.6.1 Connecting via Wi-Fi with eField Software Turn on the controller run eField go to Config main menu tap Connect. In the Connect screen, select EFIX for the Manufacture field, C5 for Device Type field, WIFI for Connection Type field. Tap the Wireless Lan icon on the right side to select the hot spot Switch on the WiFi module by the top switch select the target device in the list. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 16 Getting Started with C5 Tap the Connect button to build the connection. 2.6.2 Connecting via Bluetooth with eField Software Turn on the controller run eField go to Config main menu tap Connect. In the Connect screen, select EFIX for the Manufacture field, C5 for Device Type field, Bluetooth for Connection Type field. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 17 Getting Started with C5 Tap the Bluetooth Manager and turn on the Bluetooth function to search Bluetooth device around select the target device in the list Tap back button select the target device in the Bluetooth manager list. Tap the Connect button to build the connection. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 18 Getting Started with C5 2.7 Downloading Logged Data Data logging involves the collection of GNSS measurement data over a period at a static point or points, and subsequent post-processing of the information to accurately compute baseline information. Data logging using receivers requires access to suitable GNSS post-processing software such as the eOffice Software. 2.7.1 FTP Download The procedures of downloading logged data through FTP are as follows:

(1) Switch on the receiver, search its Wi-Fi in the computer and connect.

(2) After the successful connection, open the file manager in the computer and input ftp:\\192.168.1.1 in the address box.

(3) Input user name and password, the default user name and password are ftp. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 19 Getting Started with C5

(4) Double click the folder repo_receiver SN (take 3225804 as example), you will see 9 folders. The push_log folder is used to save the log files, and the other 8 folders represent different logging sessions and are used for store static data.

(5) Double click the folder that you have configured to store the static data, you will see the folder(s) created by the C5 system automatically and named by the date which is decide by GPS time when you start to log data.

(6) Select the destination folder and double click it, two folders named as different data format (hcn and rinex) will be displayed. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 20

(7) Select the data format that you configured to save the static data, you will find the static raw data. Getting Started with C5 Notes: For hcn files, the name of the file is represented as XXXXXXDDDNN, where XXXXXX is the SN of the receiver, DDD is day of year, and NN is the recording session. WARNING The static data will be saved in the first logging session, the record_1 folder, by default. Old files will be deleted if the storage space is full. If you configure not to auto delete old files when the memory is low, the receiver will stop data logging. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 21 Getting Started with C5 The procedures of downloading logged data through web server refer to 5.4.4 Data 2.7.2 Web Server Download Download Submenu. 2.7.3 USB Download The procedures of downloading logged data in the receiver are as follows:

(1) Switch on the receiver and connect it with a computer by eField Type-C. After the successful connection, a removable disk named as the Serial Number (SN) of the receiver will appear on the computer.

(2) Double click the removable disk and you will see the folder named as repo.

(3) Double click this folder, you will see 9 folders. The push_log folder is used to save the log files, and the other 8 folders represent different logging session and are used for store static data.

(4) Double click the folder that you have configured to store the static data, you will see the folder(s) created by the C5 system automatically and named by the date which is decide by GPS time when you start to log data. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 22 Getting Started with C5

(5) Select the destination folder and double click it, and then two folders named as different data format (hcn and rinex) will be displayed.

(6) Select the data format that you have configured to save the static data, you will find the static raw data. Tip For hcn files, the name of the file is represented as XXXXXXDDDNN, where XXXXXX is the SN of the receiver, DDD is day of year, and NN is the recording session. WARNING The static data will be saved in the first logging session, the record_1 folder, by default. Old files will be deleted if the storage space is full. If you configure not to auto delete old files when the memory is low, the receiver will stop data logging. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 23 Equipment Setup and Operation 3 Equipment Setup and Operation 3.1 Post-processing Base Station Setup For good performance, the following base station setup guidelines are recommended:

Components:

a b c e No. a b c d e f Steps:

f d Name C5 GNSS receiver Extension pole (30 cm) Tribrach adaptor Tribrach w/ Opti Aluminum tripod Auxiliary H.I. tool

(1) Put tripod in the target position, center and level it roughly. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 24 Equipment Setup and Operation

(2) Place and lock the tribrach in the tripod.

(3) Screw the receiver onto the tribrach.

(4) Center and level the receiver more precisely.

(5) Connect the receiver to external battery by using USB Type-C cable if necessary.

(6) Turn on the receiver by pressing the power button for 3 s.

(7) Measure the antenna height by using H.I. tape and auxiliary H.I. tool.

(8) Press the function button to select Data to start recording static raw. If work with a data controller:

(9) Switch on the data controller and connect it to the receiver.

(10) Use software to configure the receiver as static mode. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 25 Equipment Setup and Operation 3.2 Real-Time Base Station Setup For good performance, the following base station setup guidelines are recommended:

Components:

a b c e No. a b c d e d Name C5 GNSS receiver Extension pole (30 cm) Tribrach adaptor Tribrach w/ Opti Aluminum tripod Steps:

(1) Put tripod in the target position, center and level it roughly.

(2) Place and lock the tribrach in the tripod.

(3) Screw the receiver onto the tribrach.

(4) Connect the UHF whip antenna to the receiver if necessary.

(5) Connect the receiver to external battery by using USB Type-C cable if necessary.

(6) Turn on the receiver by pressing the power button for 3 s. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 26

(7) Switch on the data controller and connect it to the receiver.

(8) Use software to configure the receiver as base mode. Equipment Setup and Operation 3.3 Real-Time Rover Station Setup For good performance, the following rover station setup guidelines are recommended:

Components a b c No. a b c Name C5 GNSS receiver UHF whip antenna 2M range pole w/bag EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 27 Equipment Setup and Operation Steps:

(1) Connect the UHF whip antenna to the receiver if necessary.

(2) Screw the receiver onto the pole.

(3) Turn on the receiver by pressing the power button for 3 s.

(4) Switch on the data controller and connect it to the receiver.

(5) Use software to configure the receiver as rover mode.

(6) Center and level the receiver more precisely.

(7) Use software to start survey. 3.4 Working with the Tilt Compensation 3.4.1 Operation Steps

(1) Open eField-> Tap PT Survey-> Tap to activate tilt measurement.

(2) Shake around according to the procedures in the interface to do initialization. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 28 Equipment Setup and Operation

(3) This icon will appear when the initialization is successful.

(4) Enter the Name and Antenna, then tap point will be collected and store to Points automatically. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 29 Equipment Setup and Operation

(5) When this icon appears, the text will show Tilt is not available, please measure in alignment at the bottom of interface.

(6) Tap to close tilt compensation. 3.4.2 Notes of using tilt measurement 1. At the beginning of initialization, the pole height of the instrument should be the same as that antenna height in the software. 2. In the process of tilt measurement, if the controller shows that Tilt is not available, please EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 30 Equipment Setup and Operation measure in alignment (red), please shake RTK slightly from left to right or back to front until the reminder disappears. 3. The controller will prompt Tilt is not available, please measure in alignment when the receiver is stationary over 30 seconds or the pole hit the ground toughly. 4. The pole cannot be shaken when point is collected. 5. The receiver cannot be moved in a circle in one direction for more than 360 degrees. if the receiver has been rotated 360 degrees, it must be rotated in the opposite direction to recover again. 6. Initialization is required:

when the RTK is turned on every time;

when IMU module is turned on every time;

when receiver drops at working;

when the pole is tilted more than 65 degree;

when the receiver is stationary more than 10 minutes;

when the RTK rotates too fast on the matching pole (2 rounds per second);

when the pole hit the ground toughly. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 31 Configuring Through a Web Browser 4 Configuring Through a Web Browser Supported browsers:

Google Chrome Microsoft Internet ExplorerR version 10, or higher To connect to the receiver through a web browser:

Turn on the Wi-Fi of the receiver. 1. 2. Search the wireless network named as GNSS-XXXXXXX (the SN of your receiver) on your computer, and then establish the connection. 3. After the successful connection between your computer and the receiver, enter the IP address (192.168.1.1) of the receiver into the address bar of the web browser on your computer:

4. The web browser prompts you to enter a login account and password:

The default login account for the receiver is:

Login Account: admin Password: password Password you entered. Note Tick remember me option, and then the browser will remember the Login Account and EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 32 5. Once you log in, the web page appears as follows:

Configuring Through a Web Browser This web page shows the configuration menus on the left of the browser window, and the setting on the right. Each configuration menu contains the related Submenus to configure the receiver and monitor receiver performance. This chapter describes each configuration menu. To view the web page in another language, select the corresponding language name from the dropdown list on the upper right corner of the web page. Currently, six languages are available:

5.1 Status Menu This menu provides a quick link to review the receiver's position information, satellites tracked, runtime, current data log status, current outputs, available memory, and more. 5.1.1 Position Submenu This page shows the relevant position information about the receiver's position solution which EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 33 including the position, DOP values, satellites used and tracked, and the receiver clock information. Configuring Through a Web Browser 5.1.2 Activity Submenu Lists several important items to help you understand how the receiver is being used and its current operating condition. Items include the identities of currently tracked satellites, internal and external storage usage rate, how long the receiver has been operational, state of the internal battery, power source state. With this information, it is easy to tell exactly what functions the receiver is performing:

5.1.3 Google Map Submenu Tap this submenu to show the location of the receiver on Google map. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 34 Configuring Through a Web Browser 5.2 Satellites Menu Use the Satellites menu to view satellite tracking details and enable/disable GPS, GLONASS, BDS and Galileo constellations. These menus include tabular and graphical displays to provide all required information on satellite tracking status. 5.2.1 Tracking Table Submenu Provides the status of satellites tracked in general, such as the satellite ID, satellite type, attitude angle, azimuth angle, L1 SNR, L2 SNR, L5 SNR and enable/disable status of each one. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 35 Configuring Through a Web Browser 5.2.2 Tracking Info. Table Submenu The following figure is an example of satellite track diagram page. Users can determine the satellite types and the corresponding SNR of L-band carriers to be displayed in any combination. 5.2.3 Tracking Skyplot Submenu The following figure is an example of Skyplot page. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 36 Configuring Through a Web Browser 5.2.4 Satellite Activation Submenu Use this menu to enable or disable satellites. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 37 Configuring Through a Web Browser 5.3 Receiver Configuration Menu Use this menu to configure settings such as the antenna type and height, elevation mask and PDOP setting, the reference station coordinates, receiver resetting and web interface language:

5.3.1 Description etc. This submenu shows the receiver information and reference station information, including antenna related information, elevation mask angle, reference station work mode and position, EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 38 Configuring Through a Web Browser 5.3.2 Antenna Configuration Submenu Use this screen to configure all the items related to the GNSS antenna. You must enter the correct values for all antenna-related fields, because the choices you make affect the accuracy for logged data and broadcast correction data significantly:

EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 39 Configuring Through a Web Browser 5.3.3 Reference Station Settings Submenu Use this screen to configure settings such as the station coordinates and the broadcast station identifiers. You must enter accurate information in these fields, as this data affects the accuracy of logged data files and broadcast correction data significantly:

For Reference Station Mode:

There are three modes available:

a) Auto Rover: The receiver will serve as a rover after this mode is enabled, and then receive correction data through the working mode set last time. 5.3.4 Receiver Reset Submenu Use this screen to completely or partially reset the receiver:

EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 40 Configuring Through a Web Browser 5.3.5 Languages Submenu Use this screen to select the web interface language:

5.3.6 User Management Submenu 5.3.7 USB Function Switch Use this screen to set C5 work as APIS base. 1. Connect C5 to PC by USB cable, it will be shown in device manager as unknown device:

RNDIS EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 41 Configuring Through a Web Browser 2. Install the driver for C5 RNDIS driver software. a) Right click RNDIS, and select update driver, and choose Browse my computer for b) Select Let me pick from a list of available drivers on my computer, and click next EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 42 Configuring Through a Web Browser c) Then there will appear a hardware type list. In the list, select Network adapters. d) Then find Microsoft in the Manufacturer list, and select Remote NDIS based Internet Sharing Device in the model list. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 43 Configuring Through a Web Browser 3. Config IP for C5. connections. a) After installing the driver, there will show another Ethernet connection in Network b) Go to properties, and double click IPV4 to change the IP address. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 44 Configuring Through a Web Browser c) Change the IP address, Subnet mask and Default gateway as following:

4. Login into C5 webpage in Chrome by inputting: 192.168.253.1, keep same as the default gateway. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 45 Configuring Through a Web Browser 5. Config C5 to connect WiFi and work as APIS base. a) Go to Module Setting -> WiFi, change WiFi mode to WiFi Terminal. b) Click Start to searching the wifi and connect. c) Go to Receiver Configuration -> Reference Station Settings. Set C5 as auto base, and get the base station. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 46 Configuring Through a Web Browser d) Go to I/O settings, in RTK Client, config it. e) Connect and config it as APIS base, use local APIS address. Then click Confirm to set. f) After send correction data to APIS server successfully, the RTK Client option will become green background. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 47 g) Then set rover as APIS rover, and it will get fix solution. Configuring Through a Web Browser 5.3.8 HCPPP Settings Reserved for HCPPP. 5.4 Data Recording Menu Use the Data Logging menu to set up the receiver to log static GNSS data and to view the logging settings. You can configure settings such as observable rate, recording rate, continuous logging limit, and whether to auto delete old files when memory is low. This menu also provides the controls for the FTP push feature:

5.4.1 Log Settings Submenu Here shows the data logging status, including internal and external storage usage and data logging status of each session. Also, users can configure the data logging settings for each session, including recording name, store location, storage limit, store formats, start time, etc. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 48 Configuring Through a Web Browser To edit the settings of each session, click the Modify button to the right of the required session, and then the Recording Edit screen appears:

Click advanced to see more settings. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 49 Configuring Through a Web Browser In this screen, you can configure all the data logging parameters, and determine whether the recording files will be affected by the FTP Push. The parameters are mainly as follows:

Auto Record: on or off. Sample Interval: Select the observable rate from the dropdown list. Elevation Mask: Enter the elevation mask. Duration Time: Set the duration of data logging. Site Name: Enter the name of the site. Antenna Height: the measured height value. Measure way: Antenna Phase Center, Vertical Height, Slant Height Storage Format: Select the format of the data store. RINEX Version: OFF, 3.02, 2.11 Start Date: Select Yes or No option to determine whether to auto record start date. Apply Time: Select Yes or No option to determine whether to auto record apply time. Integral Point Store: Select Yes or No option to determine whether to allow receiver Circulating Memory: Select Yes or No option to determine whether to auto delete old to save data every hour. files if the storage space is full. Repeat Observations: Select Yes or No option to determine whether to turn on to Assigned Storage: The assigned memory size of current thread(for example, Record 1) record a single observation. Store Location: Internal Storage, External Storage. is 10000MB Observer: Enter the name of observer. Observer Agency: Enter the name of observer agency. FTP Push: Decide whether to push the stored files to the FTP server of your choice. Tap click button to save the settings and back to the Log Settings screen. Also, users can to abandon the changed settings and back to Log Settings screen. Note To modify data logging parameters, make sure the data logging session is switched off. To switch on or off ANY data logging session, tap the ON or OFF button on the right of the required session. the required session. To delete the recorded files of ANY data logging session, tap the Clear button on the right of To delete the recorded files of ALL data logging sessions, tap the Clear ALL Accounts button. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 50 Configuring Through a Web Browser 5.4.2 FTP Push Settings Submenu Use this screen to configure the receiver to push stored files to the FTP server of your choice. Only files that are configured to use FTP push are transmitted. Tap Modify button on the right of the required FTP server and the FTP Push Settings screen appears:

5.4.3 FTP Push Log Submenu Shows the related information about the recorded filed that be pushed. And users can tap Clear Ftp Send Log button in the upper right corner to clear the log of FTP Push operations. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 51 Configuring Through a Web Browser 5.4.4 Data Download Submenu through the internal FTP site. name and password:

In this submenu, users can download the data files that recorded in the internal storage 1. Click this submenu, and then the log on dialogue box will prompt you to enter a user The default logon account for the internal FTP site is:

User name: ftp Password: ftp on the receiver:

2. Click the directory named as repo to view and download the files currently stored 3. To find the file need to be downloaded, click the name of data logging session the EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 52 date of file that be recorded the format of the file the name of the target file. Configuring Through a Web Browser 4. To download a file, left-click the name of the target file download the file according to the prompts. 5.5 IO Settings Menu Use the IO Settings menu to set up all receiver outputs and inputs. The receiver can output CMR, RTCM, Raw data, Ephemeris data, GPGGA, GPGSV, on TCP/IP, UDP, serial port, or Bluetooth ports. 5.5.1 IO Settings Submenu The following figure shows an example of the screen that appears when you select this submenu. (serial port setting is reserved menu) EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 53 Configuring Through a Web Browser In this submenu, users can configure 6 types of input and output settings. 1. RTK Client After configuring the settings of RTK client, users can log on CORS or APIS. Tap the Connect button to the right the IO Settings screen will appear choose one of the connection protocols among the NTRIP, APIS_BASE, APIS_ROVER and TCP configure the related parameters click to log on CORS or APIS. Connection Protocol: NTRIP Connection Protocol: APIS_BASE EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 54 Configuring Through a Web Browser Connection Protocol: APIS_ROVER Connection Protocol: TCP 2. TCP/UDP_Client/NTRIP Server Tap the Connect button on the right of required TCP/UDP Client the IO Settings screen will EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 55 Configuring Through a Web Browser appear select the connection protocol from TCP, UDP, NTRIP1.0 and NTRIP2.0 enter the IP and Port of the target server configure messages that you want to output to the target server click to save and complete the connection. Connection Protocol: TCP Connection Protocol: UDP EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 56 Configuring Through a Web Browser Connection Protocol: NTRIP1.0 Connection Protocol: NTRIP2.0 EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 57 Configuring Through a Web Browser EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 58 Configuring Through a Web Browser 3. TCP Server/NTRIP Caster Tap the Connect button to the right of required TCP Server/NTRIP Caster the IO Settings screen will appear select one of the connection protocols between NTRIP and TCP configure the other related parameters click server. to save the settings and open the Connection Protocol: TCP Connection Protocol: NTRIP EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 59 Configuring Through a Web Browser 4. Bluetooth Tap the Settings button to the right of Bluetooth the Bluetooth Set screen will appear configure the messages that you want to transmit through Bluetooth click save the settings and start to transmit. to EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 60 Configuring Through a Web Browser 5.6 Module Setting Menu Use this menu to check module information, configure WiFi, bluetooth, radio related settings. 5.6.1 Description Submenu Use this submenu to check the information of WiFi module, bluetooth module and radio module. 5.6.2 WiFi Submenu Use this submenu to turn on/off WiFi function and modify password. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 61 Configuring Through a Web Browser 5.6.3 Bluetooth Settings Submenu Use this submenu to turn on/off bluetooth function and modify PIN number. 5.6.4 Radio Settings Submenu Use this submenu to turn on/off radio function and configure radio parameters. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 62 Configuring Through a Web Browser 5.7 Firmware Menu Use this menu to check the current firmware information, download the system log, update the receiver firmware, download or update the configuration file and register the receiver, and more:

EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 63 Configuring Through a Web Browser 5.7.1 Firmware Info Submenu Use this submenu to check the current firmware information. The following figure shows an example of the firmware information. 5.7.2 Hardware Version Submenu Use this submenu to check the hardware information, including main board version and core board version:

5.7.3 Config File Submenu Use this submenu to update Configuration File. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 64 Configuring Through a Web Browser 5.7.4 System Log Download Submenu Use this submenu to download the system log of the receiver. 5.7.5 User Log Submenu Use this submenu to download the user log. Tap Download to download current user log; Tick items that you want to see on the user log and tap confirm button to confirm selected user log. 5.7.6 Firmware Update Submenu Use this submenu to load new firmware to the receiver across the network. Tap the Browse button to locate the upgrade file tap Confirm button to confirm the selected upgrading file and start upgrading. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 65 Configuring Through a Web Browser Notes It may take about 3 or 4 minutes to complete the firmware upgrading. Do not touch the power button or unplug the power until the upgrading process finishes, or damage will be caused to the receiver. The receiver will restart after the firmware upgrading is done, so users need to reconnect the receiver with your computer via Wi-Fi, and then log-in the receiver through a web browser to continue the configuration. 5.7.7 GNSS Board Upgrade Submenu Use this submenu to upgrade GNSS Board. Use this submenu to load new board to the receiver across the network. Tap the Browse button to locate the upgrade file tap Confirm button to confirm the selected upgrading file and start upgrading. 5.7.8 GNSS Registration Submenu Use this submenu to register the receiver. Paste or enter the registration code to the Registration Code field tap Registration button to complete the registration. EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 66 Configuring Through a Web Browser EFIX C5 GNSS USER GUIDE | 2022-03 P a g e | 67 EFIX Geomatics 1st Floor, No. 258 Pingyang Rd., Minhang District, Shanghai, 201102, CHINA Tel: +86 15021007664 Email: sales@ efix-geo.com |support@ efix-geo.com Skype: support@efix-geo.com Website: www.efix-geo.com By surveyors, for surveyors 1) FCC 15.19 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 2FCC 15.21 Warning: Changes or modifications to this unit not expressly approved by the part responsible for compliance could void the users authority to operate the equipment. 3) FCC 15.105 For a Class B digital device or peripheral, the instructions furnished the user shall include the following or similar statement, placed in a prominent location in the text of the manual:

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 4FCC RF Exposure- portable This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 60cm between the radiator & your body.

Shanghai EFIX Geomatics Co., Ltd July 11, 2022 Nemko Canada Inc 303 River Road Ottawa, Ontario, Canada K1V 1H2 Attn: Director of Certification On our behalf, I appoint Shenzhen Alpha Product Testing Co., Ltd. Address: Building i, No.2, Lixin Road, Fuyong Street, Baoan District, 518103, Authority to Act as Agent Shenzhen, Guangdong, China

(Name and addressperson). to act as our agent in the Person: Mark Zhu preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commissions regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko Canada Inc, still resides with Shanghai EFIX Geomatics Co., Ltd Address: Building 1, 158 Shuanglian Road, Qingpu District, Shanghai ( applicant name and address). Signature:

Name Position Company Name Address Tel Email 2022-07-11 Glenn Chu Certification Manager Shanghai EFIX Geomatics Co., Ltd Building 1, 158 Shuanglian Road, Qingpu District, Shanghai

+8675529766001 359662367@163.com

Shanghai EFIX Geomatics Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2022-07-11 Subject; Request for Long Term Confidentiality FCC ID: 2A3MU-C5 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description Turn-up PCB Layout BOM It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name Position Company Name Address Tel Email 2022-07-11 Glenn Chu Certification Manager Shanghai EFIX Geomatics Co., Ltd Building 1, 158 Shuanglian Road, Qingpu District, Shanghai

+8675529766001 359662367@163.com

Shanghai EFIX Geomatics Co., Ltd Office of Engineering and Technology Laboratory Division Equipment Authorization Branch Federal Communications Commission Laboratory 7435 Oakland Mills Road Columbia, MD 21046 Subject: Extend Frequencies Justification Original Application FCC ID: 2A3MU-C5 Company: Guangzhou Geoelectron Science & Technology Company Limited Address: Building 1, 158 Shuanglian Road, Qingpu District, Shanghai. Dear Sir or Madam;

This Digital radio was designed to operate in the frequency bands 410-470MHz; To aid equipment authorization in other countries that accepts the United States FCC Grant for Certification, Shanghai EFIX Geomatics Co., Ltd Is requesting that the FCC list the frequencies 410-470MHz under FCC Rule Parts 90 and the Grant note code EF. For the FCCs Rule Part 90 applications, this radio is used in systems by Federal and Public Safety agencies including Police, Fire, and Emergency Medical Services, etc. as indicated in the table below. Equipment programming is the responsibility of Authorized Service Personal. Also, the radio complies with 47 CFR Part 90.203 (e), in that the operator cannot directly program the transmit frequencies using the normally accessible external controls. Per the FCCs KDB634817 guidance, as an alternative to listing the exact frequencies, we acknowledge that its a violation of the FCC Rules if this device operates on unauthorized frequencies. Please contact me if you require any additional information. Shanghai EFIX Geomatics Co., Ltd Date: 2022-07-11 Signature:

Name:

Glenn Chu Title:

Certification Manager Company: Shanghai EFIX Geomatics Co., Ltd

Shanghai EFIX Geomatics Co., Ltd Office of Engineering and Technology Laboratory Division Equipment Authorization Branch Federal Communications Commission Laboratory 7435 Oakland Mills Road Columbia, MD 21046 Subject: Extend Frequencies Justification Original Application FCC ID: 2A3MU-C5 Company: Shanghai EFIX Geomatics Co., Ltd Address: Building 1, 158 Shuanglian Road, Qingpu District, Shanghai. Dear Sir or Madam;

We, Shanghai EFIX Geomatics Co., Ltddeclares that the Digital radio meets 47CFR Section 90.203(j)(4) and 90.203(j)(5) spectrum efficiency requirement;

This Digital radio is support both 12.5 KHz and 25 KHz for GMSK, 6.25KHz,12.5 KHz and 25 KHz for 4-FSK digital modulation; Emission Designator: F1D for data modes, also this Digital radio designed in accordance with ETSI TS 102 361-1 requirement, will at least support 4800 bits per second in a 6.25 KHz channel bandwidth, 9600 bits per second in a 12.5 KHz channel bandwidth and 19200 bits per second in a 25 KHz channel bandwidth, GMSK will refer 2 time slots in one 12.5 KHz bandwidth and refer 4 time slots in one 25 KHz bandwidth accordance to ETSI ETS 102 361-1, which equal with 9600/2 = 4800 and 19200/4 = 4800 bits per second in one 6.25 KHz channel bandwidth;

We, Shanghai EFIX Geomatics Co., Ltddeclares that the Digital radio capable of operating on the nationwide public safety interoperability calling channel (453.2125 MHz), meets 47CFR Section 90.203(j)(1) requirement;

Date: 2022-07-11 Signature:

Name:

Glenn Chu Title:

Certification Manager Company: Shanghai EFIX Geomatics Co., Ltd