LC29H Series EVB GNSS Module

Product Information – GNSS Module Series

Specifications

• Version: 1.1
• Date: 2023-04-26
• Status: Released

Product Usage Instructions

Legal Notices

Use and Disclosure Restrictions:
License Agreements:
Documents and information provided by us shall be kept
confidential, unless specific permission is granted. They shall not
be accessed or used for any purpose except as expressly provided
herein.

Trademarks

Except as otherwise set forth herein, nothing in this document
shall be construed as conferring any rights to use any trademark,
trade name or name, abbreviation, or counterfeit product thereof
owned by Quectel or any third party in advertising, publicity, or
other aspects.

Third-Party Rights

This document may refer to hardware, software and/or
documentation owned by one or more third parties (third-party
materials). Use of such third-party materials shall be governed by
all restrictions and obligations applicable thereto.

Privacy Policy

To implement module functionality, certain device data are
uploaded to Quectel’s or third-party’s servers, including carriers,
chipset suppliers or customer-designated servers. Quectel, strictly
abiding by the relevant laws and regulations, shall retain, use,
disclose or otherwise process relevant data for the purpose of
performing the service only or as permitted by applicable laws.
Before data interaction with third parties, please be informed of
their privacy and data security policy.

Disclaimer

a) We acknowledge no liability for any injury or damage arising
from the reliance upon the information.
b) We shall bear no liability resulting from any inaccuracies or
omissions, or from the use of the information contained
herein.
c) While we have made every effort to ensure that the functions and
features under development are

Safety Information

The following safety precautions must be observed during all
phases of operation, such as usage, service, or repair of any
terminal or mobile incorporating the module. Manufacturers of the
terminal should notify users and operating personnel of the
following safety precautions by incorporating them into all product
manuals. Otherwise, Quectel assumes no liability for customers’
failure to comply with these precautions.

• Ensure that the product may be used in the country and the
  required environment, as well as that it conforms to the local
  safety and environmental regulations.

• Keep away from explosive and flammable materials. The use of
  electronic products in extreme power supply conditions and
  locations with potentially explosive atmospheres may cause fire and
  explosion accidents.

FAQ

Q: How can I contact Quectel for assistance?

A: You can contact Quectel headquarters at Building 5, Shanghai
Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang
District, Shanghai 200233, China. You can also reach out to our
local offices. For more information, please visit http://www.quectel.com/support/sales.htm.

Q: Where can I find technical support or report documentation

errors?

A: For technical support or to report documentation errors, you
can visit http://www.quectel.com/support/technical.htm.
You can also email us at support@quectel.com.

LC29H Series EVB User Guide
GNSS Module Series Version: 1.1 Date: 2023-04-26 Status: Released

GNSS Module Series
At Quectel, our aim is to provide timely and comprehensive services to our customers. If you require any assistance, please contact our headquarters:
Quectel Wireless Solutions Co., Ltd. Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District, Shanghai 200233, China Tel: +86 21 5108 6236 Email: info@quectel.com
Or our local offices. For more information, please visit: http://www.quectel.com/support/sales.htm.
For technical support, or to report documentation errors, please visit: http://www.quectel.com/support/technical.htm. Or email us at: support@quectel.com.
Legal Notices
We offer information as a service to you. The provided information is based on your requirements and we make every effort to ensure its quality. You agree that you are responsible for using independent analysis and evaluation in designing intended products, and we provide reference designs for illustrative purposes only. Before using any hardware, software or service guided by this document, please read this notice carefully. Even though we employ commercially reasonable efforts to provide the best possible experience, you hereby acknowledge and agree that this document and related services hereunder are provided to you on an “as available” basis. We may revise or restate this document from time to time at our sole discretion without any prior notice to you.
Use and Disclosure Restrictions
License Agreements
Documents and information provided by us shall be kept confidential, unless specific permission is granted. They shall not be accessed or used for any purpose except as expressly provided herein.
Copyright
Our and third-party products hereunder may contain copyrighted material. Such copyrighted material shall not be copied, reproduced, distributed, merged, published, translated, or modified without prior written consent. We and the third party have exclusive rights over copyrighted material. No license shall be granted or conveyed under any patents, copyrights, trademarks, or service mark rights. To avoid ambiguities, purchasing in any form cannot be deemed as granting a license other than the normal nonexclusive, royalty-free license to use the material. We reserve the right to take legal action for noncompliance with abovementioned requirements, unauthorized use, or other illegal or malicious use of the material.

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GNSS Module Series

Trademarks
Except as otherwise set forth herein, nothing in this document shall be construed as conferring any rights to use any trademark, trade name or name, abbreviation, or counterfeit product thereof owned by Quectel or any third party in advertising, publicity, or other aspects.
Third-Party Rights
This document may refer to hardware, software and/or documentation owned by one or more third parties (“third-party materials”). Use of such third-party materials shall be governed by all restrictions and obligations applicable thereto.
We make no warranty or representation, either express or implied, regarding the third-party materials, including but not limited to any implied or statutory, warranties of merchantability or fitness for a particular purpose, quiet enjoyment, system integration, information accuracy, and non- infringement of any thirdparty intellectual property rights with regard to the licensed technology or use thereof. Nothing herein constitutes a representation or warranty by us to either develop, enhance, modify, distribute, market, sell, offer for sale, or otherwise maintain production of any our products or any other hardware, software, device, tool, information, or product. We moreover disclaim any and all warranties arising from the course of dealing or usage of trade.
Privacy Policy
To implement module functionality, certain device data are uploaded to Quectel’s or third-party’s servers, including carriers, chipset suppliers or customer-designated servers. Quectel, strictly abiding by the relevant laws and regulations, shall retain, use, disclose or otherwise process relevant data for the purpose of performing the service only or as permitted by applicable laws. Before data interaction with third parties, please be informed of their privacy and data security policy.
Disclaimer
a) We acknowledge no liability for any injury or damage arising from the reliance upon the information. b) We shall bear no liability resulting from any inaccuracies or omissions, or from the use of the
information contained herein. c) While we have made every effort to ensure that the functions and features under development are
free from errors, it is possible that they could contain errors, inaccuracies, and omissions. Unless otherwise provided by valid agreement, we make no warranties of any kind, either implied or express, and exclude all liability for any loss or damage suffered in connection with the use of features and functions under development, to the maximum extent permitted by law, regardless of whether such loss or damage may have been foreseeable. d) We are not responsible for the accessibility, safety, accuracy, availability, legality, or completeness of information, advertising, commercial offers, products, services, and materials on third-party websites and third-party resources.
Copyright © Quectel Wireless Solutions Co., Ltd. 2023. All rights reserved.

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Safety Information
The following safety precautions must be observed during all phases of operation, such as usage, service, or repair of any terminal or mobile incorporating the module. Manufacturers of the terminal should notify users and operating personnel of the following safety precautions by incorporating them into all product manuals. Otherwise, Quectel assumes no liability for customers’ failure to comply with these precautions.
Ensure that the product may be used in the country and the required environment, as well as that it conforms to the local safety and environmental regulations.
Keep away from explosive and flammable materials. The use of electronic products in extreme power supply conditions and locations with potentially explosive atmospheres may cause fire and explosion accidents.
The product must be powered by a stable voltage source, while the wiring must conform to security precautions and fire prevention regulations.
Proper ESD handling procedures must be followed throughout the mounting, handling and operation of any devices and equipment incorporating the module to avoid ESD damages.

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GNSS Module Series

About the Document

Document Information Title Subtitle Document Type Document Status

LC29H Series EVB User Guide GNSS Module Series EVB User Guide Released

Revision History

Version 1.0

Date 2021-12-14 2021-12-20

1.1

2023-04-26

Description
Creation of the document
First official release
1. Updated the EVB version from V1.2 to V1.3. 2. Deleted the chapter of communication via QCOM. 3. Updated the firmware upgrade tool as QGNSS (Chapter 4). 4. Added the following chapters, including:
DR application (Chapter 5); RTK application (Chapter 6); EVB and antenna installation (Chapter 7); Measuring power consumption (Chapter 8); EVB framework (Chapter 9); Common problems and troubleshooting (Chapter 10); Cautions (Chapter 11).

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Contents
Safety Information…………………………………………………………………………………………………………………….. 3 About the Document …………………………………………………………………………………………………………………. 4 Contents …………………………………………………………………………………………………………………………………… 5 Table Index……………………………………………………………………………………………………………………………….. 6 Figure Index ……………………………………………………………………………………………………………………………… 7
1 Introduction ……………………………………………………………………………………………………………………….. 8 1.1. Special Mark ……………………………………………………………………………………………………………… 9
2 General Overview……………………………………………………………………………………………………………… 10 2.1. EVB Kit ……………………………………………………………………………………………………………………. 10 2.2. Connect Cables and Antenna to EVB………………………………………………………………………….. 12
3 EVB Interfaces………………………………………………………………………………………………………………….. 13 3.1. EVB Top View…………………………………………………………………………………………………………… 13 3.2. EVB Interfaces …………………………………………………………………………………………………………. 14
4 Testing and Firmware Upgrading via QGNSS Tool…………………………………………………………….. 18 4.1. Testing via QGNSS…………………………………………………………………………………………………… 18 4.2. QGNSS Interface Explanation ……………………………………………………………………………………. 20 4.3. Firmware Upgrading …………………………………………………………………………………………………. 21
5 DR Application …………………………………………………………………………………………………………………. 25
6 RTK Application ……………………………………………………………………………………………………………….. 26
7 EVB and Antenna Installation……………………………………………………………………………………………. 28 7.1. GNSS Antenna Installation ………………………………………………………………………………………… 28 7.2. EVB Installation………………………………………………………………………………………………………… 28
8 Measuring Power Consumption………………………………………………………………………………………… 29 8.1. Power Consumption at Different Stages………………………………………………………………………. 29 8.2. VCC Power Consumption Measurement……………………………………………………………………… 29 8.3. V_BCKP Power Consumption Measurement ……………………………………………………………….. 31
9 EVB Framework………………………………………………………………………………………………………………… 33
10 Common Problems and Troubleshooting ………………………………………………………………………….. 34
11 Cautions …………………………………………………………………………………………………………………………… 35
12 Appendix References ……………………………………………………………………………………………………….. 36

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Table Index
Table 1: Special Mark………………………………………………………………………………………………………………….. 9 Table 2: List of Kit Components ……………………………………………………………………………………………………11 Table 3: Detailed EVB Interfaces ………………………………………………………………………………………………… 14 Table 4: J401 Pin Description……………………………………………………………………………………………………… 15 Table 5: J402 Pin Description……………………………………………………………………………………………………… 16 Table 6: QGNSS Interface Explanation………………………………………………………………………………………… 20 Table 7: Related Documents ………………………………………………………………………………………………………. 36 Table 8: Terms and Abbreviations ……………………………………………………………………………………………….. 36

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Figure Index
Figure 1: EVB Kit Components …………………………………………………………………………………………………… 10 Figure 2: EVB and Components Assembly…………………………………………………………………………………… 12 Figure 3: EVB Top View …………………………………………………………………………………………………………….. 13 Figure 4: COM Port and Baud Rate Setting …………………………………………………………………………………. 18 Figure 5: QGNSS Interface (Connected) ……………………………………………………………………………………… 19 Figure 6: Tool Startup ………………………………………………………………………………………………………………… 21 Figure 7: Tool Setting ………………………………………………………………………………………………………………… 22 Figure 8: Firmware Selecting ……………………………………………………………………………………………………… 22 Figure 9: Firmware Upgrading – 1 ……………………………………………………………………………………………….. 23 Figure 10: Firmware Upgrading – 2 ……………………………………………………………………………………………… 23 Figure 11: Successful Firmware Upgrading ………………………………………………………………………………….. 24 Figure 12: NTRIP Client Setting………………………………………………………………………………………………….. 26 Figure 13: RTK Status Display……………………………………………………………………………………………………. 27 Figure 14: Power Consumption at Different Stages ………………………………………………………………………. 29 Figure 15: VCC Power Consumption Measured with Ammeter ………………………………………………………. 30 Figure 16: VCC Power Consumption Measured with Power Consumption Meter ……………………………… 30 Figure 17: V_BCKP Power Consumption Measured with Ammeter …………………………………………………. 31 Figure 18: V_BCKP Power Consumption Measured with Power Consumption Meter ……………………….. 32 Figure 19: EVB Framework………………………………………………………………………………………………………… 33

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GNSS Module Series
1 Introduction
This document provides information on the steps needed to evaluate the Quectel LC29H series module by using the Evaluation Board (EVB). The EVB is a convenient tool that allows you to become familiar with the LC29H series modules.
The Quectel LC29H series module includes five variants: LC29H (AA), LC29H (BA), LC29H (CA), LC29H (DA) and LC29H (EA).
Specifically, the document is divided into several sections:
Chapter 2 provides the general overview of EVB kit; Chapter 3 describes the EVB interfaces; Chapter 4 describes how to test the module and upgrade firmware via QGNSS tool; Chapter 5 describes the application of the DR function; Chapter 6 describes how to test the RTK function; Chapter 7 describes the installation of EVB and antenna. Chapter 8 describes how to measure power consumption for the module. Chapter 9 provides the EVB framework. Chapter 10 describes the common problems and troubleshooting. Chapter 11 describes the cautions. Chapter 12 is an appendix, which summarizes the relevant documents, terms and abbreviations
appearing herein.

NOTE 1. Request QGNSS software tool from Quectel Technical Support (support@quectel.com). 2. For more details on how to use LC29H (BS) EVB, see document [1] EVB user guide.

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1.1. Special Mark

Table 1: Special Mark

Mark *

Definition
Unless otherwise specified, when an asterisk () is used after a function, feature, interface, pin name, or argument, it indicates that the function, feature, interface, pin, or argument is under development and currently not supported; and the asterisk () after a model indicates that the sample of the model is currently unavailable.

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2 General Overview

2.1. EVB Kit
The EVB kit includes: Evaluation Board (EVB), active GNSS antenna, Type-B USB cables, bolts and coupling nuts. The EVB kit components are shown in the figure below. Check Table 2: List of Kit Components for details.

Type-B USB Cables

Bolts and Coupling Nuts

Active GNSS Antenna

EVB
Figure 1: EVB Kit Components

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Table 2: List of Kit Components

Items EVB USB Cable
Active GNSS Antenna
Other

Description
Evaluation Board Size: 80 mm × 120 mm
Type-B USB Cable
Active GNSS Antenna: YB0017AA Antenna Size: 61.5 mm × 56.5 mm × 23 mm Cable Length: 3000 mm The GNSS antenna supports: GPS L1 C/A and L5 GLONASS L1 Galileo E1 and E5a BDS B1I and B2a QZSS L1 C/A and L5 SBAS L1 (only LC29H (AA, DA))
Bolts and Coupling Nuts

Quantity 1 2
1
4 pairs

NOTE
Request Quectel Technical Support (support@quectel.com) for details about Quectel Active GNSS Antenna.

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2.2. Connect Cables and Antenna to EVB
The connection between the EVB and its components is shown in the figure below.

Figure 2: EVB and Components Assembly

NOTE 1. It is optional to connect PC and the “POWER SUPPLY” (J201) on the EVB via a Type-B USB. For
more information, see Chapter 3.2 EVB Interfaces. 2. Make sure that the active GNSS antenna is placed with a clear line of sight to the sky.

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3 EVB Interfaces

3.1. EVB Top View
EVB top view is shown in the figure below.

S201 (Power switch)

D501 (POWER and VCC indication LEDs) D507 (1PPS and TXD indication LEDs)

J501 (USB to UART) J201 (POWER SUPPLY)

Test point 16 Test point 15 J401 (Test points)
Test point 1

1

4

8

5

EVB version
U601 (LC29H GNSS module)

J402 (OBD)

S501 (WAKEUP button)

S502 (RESET button)

J510 (1PPS connector)

J101 (GNSS antenna connector)

Figure 3: EVB Top View

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3.2. EVB Interfaces
The EVB interfaces are detailed in the table below.

Table 3: Detailed EVB Interfaces

Function

Interfaces
J201 POWER SUPPLY

Description
J201: Only used to supply power to avoid the insufficient supply of J501.

Power Supply
Communication Interface SMA Connector
Signal Indication
Switches and Buttons

J501 USB to UART

J501 USB to UART

J101

Antenna connector

J510

1PPS connector

POWER

D501

(Red LED)

Indication LEDs VCC

(Green LED)

D507 Indication LEDs

1PPS (Red LED)
TXD (Green LED)

S201 Power switch S501 WAKEUP S502 RESET

J501: Used to communicate and supply power.
Power supply input: DC power supply: 4.5­5.5 V, typ. 5.0 V Current capability should be > 100 mA Supports standard NMEA message, RTCM message, binary data, PAIR/PQTM message and firmware upgrade.
Used for connecting GNSS antenna.
Used for testing 1PPS signal.
Bright: EVB is powered well. Extinct: EVB is not powered. Bright: Module is powered. Extinct: Module is not powered. Flashing: Successful position fix.
Frequency: 1 Hz. Extinct: No position fix. Flashing: Data are being output from UART
TXD pin. Extinct or Bright: No data are output from
UART TXD pin.
Powers the module on/off.
Short press on the button to wake up the module from Backup mode. Short press on the button to reset the module.

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Function Others

Interfaces
J402 OBD

Pin description of J401 is shown below:

Description
Used for WHEELTICK and FWD signals input (only LC29H (BA, CA)). Pins are detailed in Table 5: J402 Pin Description.

Table 4: J401 Pin Description

Test Point Test

No.

Label

1

GND

2

PIN1

3

PIN2

4

PIN3

5

PIN4

6

PIN5

Point Test Function
GND

Point I/O –

U601: Pin 1

DI

U601: Pin 2

DI

U601: Pin 3

DO

U601: Pin 4

DI

U601: Pin 5

DI

Description

Ground

WAKEUP: Wakes up the module from Backup mode FWD: Forward/Backward status signal input (only LC29H (BA, CA))

1PPS:1 pulse per second

WHEELTICK:

Odometer/Wheel-tick

pulse input (only LC29H (BA, CA))

D_SEL1: Selects UART1/SPI*/I2C

7

PIN6

U601: Pin 6

DI D_SEL2: Selects UART1/SPI*/I2C

8

PIN7

U601: Pin 7

PO VDD_EXT: Provides 2.8 V for external circuit

9

PIN8

U601: Pin 8

DI RESET_N: Resets the module

10

PIN9

U601: Pin 9

PO VDD_RF: Supplies power for external RF components

11

PIN14

U601: Pin 14

DO ANT_ON: Control external LNA and active antenna power

12

PIN15

U601: Pin 15

DO TXD2: UART2 transmits data

13

PIN16

U601: Pin 16

DI RXD2: UART2 receives data

14

PIN17

U601: Pin 17

DO WI*: Warming LC29H (BA, CA))

indicator

(only

15

No label

–

–

NC (Not Connected)

16

No label

–

–

NC

17

No label

–

–

NC

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Test Point Test

No.

Label

Point Test Function

18

No label

–

Point I/O –

Description NC

19

No label

–

–

NC

20

No label

–

–

NC

21

No label

–

–

NC

22

PIN23

U601: Pin 23

PI VCC: Main power supply

23

PIN22

U601: Pin 22

PI

V_BCKP: Backup power supply for

backup domain of module

24

GND

GND

–

Ground

25

GND

GND

–

Ground

26

PIN21

U601: Pin 21

DI RXD1: Receives data

27

PIN20

U601: Pin 20

DO TXD1: Transmits data

28

PIN19

U601: Pin 19

DI I2C_SCL: I2C serial clock

29

PIN18

U601: Pin 18

DIO I2C_SDA: I2C serial data

30

No label

–

–

NC

Pin description of J402 is shown below:

Table 5: J402 Pin Description

Pin Number Pin Label

1

–

2

CAN_L

3

CAN_H

4

–

5

–

Pin Function

I/O

GND

–

–

–

–

–

GND

–

–

–

6

WHEELTICK WHEELTICK

DI

Description Ground NC NC Ground Odometer/Wheel-tick pulse input (only LC29H (BA, CA))

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Pin Number Pin Label

7

FWD

8

–

Pin Function

I/O

FWD

DI

–

–

Description
Forward/Backward status signal input (only LC29H (BA, CA)) –

NOTE
1. Test points of J401 are arranged clockwise, and their serial numbers are shown in Figure 3: EVB Top View.
2. A J401 test point refers to the module’s corresponding function. For detailed descriptions, see document [2] hardware design.
3. For reference circuit diagram of WHEELTICK and FWD, see document [3] reference design.

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4 Testing and Firmware Upgrading via
QGNSS Tool
This chapter explains how to use the QGNSS software tool for verifying the status of GNSS modules and for firmware upgrading. For more information about QGNSS use, see document [4] QGNSS user guide.
4.1. Testing via QGNSS
Step 1: Assembly the EVB components. Step 2: Connect the EVB and the PC with two Type-B USB cables via “POWER SUPPLY” and “USB to
UART” interfaces or connect the EVB to the PC with a Type-B USB cable via “USB to UART” interface. Then flip the power switch (S201) to ON position to power on the module. Step 3: Start the QGNSS and click “Device” and “Set Device Information” (default baud rate: 115200 bps 1).

Figure 4: COM Port and Baud Rate Setting Step 4: Click the “Connect or disconnect” button. The interface shown in the figure below appears
once the module is connected.
1 UART interface default settings may vary depending on software versions.

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Figure 5: QGNSS Interface (Connected)

NOTE Ensure the CP210x driver has been installed when you use the QGNSS tool for the first time. For more information about the driver, please contact the Quectel Technical Support (support@quectel.com).

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4.2. QGNSS Interface Explanation
You can view GNSS information, such as C/N0 message, time, position, speed, and precision in the QGNSS interface. See the following table to find out more about these parameters.

Table 6: QGNSS Interface Explanation

Icon

Explanation This sky view interface shows the position of the satellites in use.

1. The left column icons show the satellites in use and their
   numbers. BDS: 10 GLO (GLONASS): 6 GPS: 12 GAL (Galileo): 7 QZSS: 0 NAVIC: 0 SBAS: 0
2. The sky view on the right shows the position of the satellites
   in use.

GPS satellite BDS satellite GLONASS satellite Galileo satellite QZSS satellite NAVIC satellite

PRN 30 C/N0 is 39 dB-Hz. Column in bright red means that the navigation data of the
satellite is in use. PRN 1 C/N0 is 21 dB-Hz. Column in light red means that the navigation data of the
satellite is not in use.

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Icon

GNSS Module Series
Explanation
Longitude (unit: °) Latitude (unit: °) Altitude (MSL) (unit: m) Receiver speed (unit: km/h) Horizontal dilution of precision Position dilution of precision Fix Mode: 2D, 3D Quality Indicator: DGNSS, DGPS, GPS SPS, Float RTK and
Fixed RTK modes Date: UTC date Time: UTC time Total Times Fixed Points RTK Fixed RTK Float Age of differential GPS data TTFF (unit: s) 2D accuracy (unit: m) 3D accuracy (unit: m)

4.3. Firmware Upgrading
Power on the module before upgrading the firmware. See Chapter 4.1 Testing via QGNSS for details. Firmware upgrading steps: Step 1: Open QGNSS tool, and click “Tools” and select “Firmware Download” in the drop-down box.

Figure 6: Tool Startup Step 2: Select the”Download Baudrate” (921600 bps or 115200 bps) in the drop-down box of “Settings”.

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Figure 7: Tool Setting

Step 3: Click the

“Open Config File” button to select Config file, e.g., “flash_download.cfg”.

Figure 8: Firmware Selecting
Step 4: Click the “Run” button and then short press the reset button after the progress bar prompts you to reset the module.

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GNSS Module Series Figure 9: Firmware Upgrading – 1

Figure 10: Firmware Upgrading – 2
Step 5: Upon successful firmware upgrading, the QGNSS tool’s progress bar on the screen will indicate “100 %”.

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GNSS Module Series Figure 11: Successful Firmware Upgrading

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5 DR Application
LC29H (BA) and LC29H (CA) support the Dead Reckoning technology. This chapter outlines the implementation of the DR function. Before using the DR function, the module integrated IMU needs to be calibrated. To ensure module performance, the EVB must be mounted properly on the vehicle in such a way that it is firmly attached to the vehicle during use and no relative movement is allowed between the vehicle and the EVB. For more information, see document [5] DR&RTK application note.

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6 RTK Application

LC29H (BA), LC29H (DA) and LC29H (EA) support RTK function. This chapter mainly describes how to test the RTK function of the module.
Before transferring RTK data, ensure that the connection to server is stable and the COM port and baud rate are set. See Chapter 4.1 Testing via QGNSS for details.
To test the RTK function:

Step 1: Click the

“NTRIP Client” button to pop up the NTRIP Client window.

Step 2: Fill in NTRIP account information (obtained by yourself) in the window. Please verify if there is an RTK correction service at your region.
Step 3: Click the “Update NTRIP source table” button and select the corresponding “NTRIP mount point”. Then, click the “Connect To Host” button to “ON” and connect the NTRIP server, as shown in the figure below.

Figure 12: NTRIP Client Setting LC29H_Series_EVB_User_Guide

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GNSS Module Series Once the connection is established, the RTK status can be confirmed by querying the quality indicator of the GGA message. 2 indicates that the module entered differential mode, 4 indicates that the module entered Fixed RTK mode, and 5 indicates that the module entered Float RTK mode.
Figure 13: RTK Status Display

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7 EVB and Antenna Installation
7.1. GNSS Antenna Installation
The installation environment affects the antenna reception performance and satellite visibility, which in turn affect the position quality of a GNSS receiver. In addition, antenna’s orientation can also impact its reception performance. Therefore, it is important to avoid obstacles and interference when installing antenna. Place the ceramic patch antenna horizontally and make sure it faces toward the sky. If dynamic testing is required, make sure that the GNSS antenna is firmly fixed to the device under test so as to avoid any movement or vibration with respect to the device.
7.2. EVB Installation
If dynamic testing and DR performance testing are required, make sure the EVB is fixed to the device under tes so as to avoid any movement or vibration with respect to the device.

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8 Measuring Power Consumption

8.1. Power Consumption at Different Stages
Module power consumption is measured in three stages: acquisition and tracking (including almanac update), tracking (almanac update is over) and upon entering Backup mode.
Acquisition and tracking (including almanac update): 0 s to 12.5 min Tracking (almanac update is over): > 12.5 min Entering Backup mode

Current

12.5 min Enter Backup Mode

VCC

Acquisition and Tracking (including almanac update)

Tracking (almanac update is over)

V_BCKP 0

12.5 min

Figure 14: Power Consumption at Different Stages

Time

8.2. VCC Power Consumption Measurement
Before measuring the VCC power consumption, you must connect the components to the EVB to ensure that the module can communicate and fix normally. See Chapter 4.1 Testing via QGNSS.
Detailed steps for measuring VCC power consumption with an ammeter:
Step 1: Switch off the power supply (S201) and pull out the VCC_MODULE jumper cap (J601). Connect the ammeter in series to both pins of J601 as shown below.

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Step 2: Switch on the power supply (S201) and read the ammeter.

GNSS Module Series

Ammeter

Figure 15: VCC Power Consumption Measured with Ammeter
Detailed steps for measuring VCC power consumption with a power consumption meter:
Step 1: Switch off the power supply (S201) and pull out the VCC_MODULE jumper cap (J601). Make sure the positive pole of the power consumption meter is to be connected to pin 2 (without arrow silkscreen) of J601, and the negative pole is connected to GND.
Step 2: Switch on the power supply (S201) and read the power consumption meter.

GND

Power

Consumption

Meter

VCC

Figure 16: VCC Power Consumption Measured with Power Consumption Meter

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8.3. V_BCKP Power Consumption Measurement
Before measuring the V_BCKP power consumption, you must connect the components to EVB to ensure that the module can communicate and fix normally. See Chapter 4.1 Testing via QGNSS. Detailed steps for measuring V_BCKP power consumption with an ammeter: Step 1: Switch off the power supply (S201) and pull out the V_BACK jumper cap (J202). Connect the
ammeter in series to both pins of J202, as shown below. Step 2: Switch on the power supply (S201) and read the ammeter.
Ammeter

Figure 17: V_BCKP Power Consumption Measured with Ammeter
Detailed steps for measuring V_BCKP power consumption with a power consumption meter:
Step 1: Switch off the power supply (S201) and pull out the V_BACK jumper cap (J202). Then, ensure the positive pole of the power consumption meter is connected to pin 1 (with arrow silkscreen) of J202, and the negative pole is connected to GND.
Step 2: Switch on the power supply (S201) and read the power consumption meter.

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GND
Power Consumption VCC
Meter

GNSS Module Series

Figure 18: V_BCKP Power Consumption Measured with Power Consumption Meter
NOTE
1. Adjust the current resolution when using the power consumption meter. 2. Formula for calculating the power value: P = VSupply × ITest. 3. Before measuring the V_BCKP power consumption in Backup mode, ensure that the module has
entered Backup mode, and then remove the jumper cap of VCC_MODULE (J102) to cut off the power supply of VCC. For more information about the way to enter/exit Backup mode, see document [2] hardware design.

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9 EVB Framework
The power is supplied to EVB via Type-B, and then to the GNSS module via a low-dropout regulator (LDO). GNSS module outputs the signals from communication interface on EVB via USB-to-UART Bridge Chip (CP2102N). There are an antenna interface and control buttons on EVB. All functions of the module are available, including debugging.

LDO 3.3 V

Antenna Interface

VCC V_BCKP

Button RESET_N Module

Button WAKEUP

LDO LDO 3.3 V 2.8 V
USB to UART Bridge Chip:
CP2102N

Power Switch
Type-B Interface
Type-B Interface

OBD

Isolation Circuit

Test Points

Figure 19: EVB Framework

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10 Common Problems and
Troubleshooting
1. Unable to find COM port in the Device Manager when EVB is connected to PC with a USB cable. Check that the EVB communication interface is properly connected to the PC. Verify that CP210x Driver has been installed successfully.
2. Communication interface not outputting any messages or commands. Check that the power supply indication LED on the EVB is illuminated. Verify that the jumper cap(s) is(/are) connected correctly, as shown in Figure 1: EVB Kit Components. Ensure that the module’s power supply is normal.
3. Module unable to search for satellite signals. If there is no transponder indoors, test the module in an open-sky environment.
4. Module unable to upgrade. Verify whether the module is in normal operating mode. Check that the downloaded firmware is correct. Confirm that the correct COM port has been selected.
NOTE
For the problem(s) that cannot be solved, please contact Quectel Technical Support (support@quectel.com).

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11 Cautions
Make sure to conduct tests under the same environment when comparing different parameters of GNSS modules.
Note that parameters, such as cold start, acquisition and tracking, may be defined differently by chip suppliers.
Ensure that the measurement method is correct. If there are significant differences between parameters tested via EVB and those provided by Quectel, please contact Quectel Technical Support.
Note that momentary data obtained from measurement cannot always be regarded as reference data, because it may be affected by various factors, such as satellite positions at different times, environmental conditions, temperature, humidity and altitude.
Keep in mind that the QGNSS Tool may updated periodically to fix bugs or improve performance. Please make sure that you are using the latest version of the tool.

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12 Appendix References

Table 7: Related Documents
Document Name [1] Quectel_LC29H(BS)_EVB_User_Guide [2] Quectel_LC29H_Series_Hardware_Design [3] Quectel_LC29H_Series_Reference_Design [4] Quectel_QGNSS_User_Guide [5] Quectel_LC29H(BA,CA,DA,EA)_DR&RTK_Application_Note

Table 8: Terms and Abbreviations Abbreviation Description

2D

Two-dimensional

3D

Three-dimensional

BDS

BeiDou Navigation Satellite System

CAN

Controller Area Network

COM Port

Communication Port

C/N0

Carrier-to-noise-density Ratio

DC

Direct Current

DI

Digital Input

DO

Digital Output

DR

Dead Reckoning

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Abbreviation ESD EVB Galileo GND GNSS GPS GLONASS I2C I/O LED MSL NMEA OBD PC PCB 1PPS PRN QZSS RF RXD RTK SBAS SCL SDA

Description Electrostatic Discharge Evaluation Board Galileo Satellite Navigation System (EU) Ground Global Navigation Satellite System Global Positioning System Global Navigation Satellite System (Russia) Inter- Integrated Circuit Input/Output Light Emitting Diode Mean Sea Level NMEA (National Marine Electronics Association) 0183 Interface Standard On-Board Diagnostics Personal Computer Printed Circuit Board One Pulse Per Second Pseudorandom Noise Quasi-Zenith Satellite System Radio Frequency Receive Data (Pin) Real-Time Kinematic Satellite-Based Augmentation System Serial Clock Line Serial Data Line

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Abbreviation SMA SPS TTFF TXD UART USB UTC

Description SubMiniature Version A Standard Positioning Service Time to First Fix Transmit Data (Pin) Universal Asynchronous Receiver/Transmitter Universal Serial Bus Coordinated Universal Time

GNSS Module Series

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