2BB82-M68GHigh Precision GNSS Receiver

M68G GNSS RECEIVER USER MANUAL V1.0 Copyright © Devecent Information Technology Co., Ltd. 2022. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any ways without prior written consent of Devecent Information Technology Co., Ltd. Trademarks and Permissions and other ZX trademarks are trademarks of Devecent Information Technology Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Devecent Information Technology and the customers. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. The information in this document is subject to change without notice. Efforts has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied. FCC warning: 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 80 cm from all persons and must not be collocated or operating in conjunction with any other antenna or transmitter, End-Users must be provided with transmitter operation conditions for satisfying RF exposure compliance. Revision History Revised Edition Revision History Date V1.0 Initial Release 2023-5-31 Contents I. Before You Start ....................................................................................................... 1 1.1 Precautions For Safe Operation ........................................................................ 1 1.2 Exemption From Liability ................................................................................ 2 II. M68G At A Glance ................................................................................................... 3 2.1 Appearance ....................................................................................................... 3 2.2 Battery Indicator ............................................................................................... 4 2.3 Power On And Off ............................................................................................ 4 2.4 Insert A SIM Card ............................................................................................. 5 2.5 Charge The Battery ........................................................................................... 5 2.6 Install The Radio Antenna ................................................................................ 5 2.7 Packing Checklist ............................................................................................. 6 III. Web UI ...................................................................................................................... 8 3.1 Status ................................................................................................................. 8 3.2 Info .................................................................................................................... 9 3.3 Skyplot .............................................................................................................. 9 3.4 Data Stream ..................................................................................................... 10 3.5 Command ........................................................................................................ 12 3.6 Mode Config ................................................................................................... 13 3.7 Others Config .................................................................................................. 15 3.8 File .................................................................................................................. 16 3.9 Firmware ......................................................................................................... 16 3.10 Log ................................................................................................................ 17 3.11 Message Text ................................................................................................ 17 3.12 Data Config ................................................................................................... 19 3.13 ZXVPN .......................................................................................…

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Date: 2023-09-13 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (High Precision GNSS Receiver / M68G/ FCC ID: 2BB82-M68G) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the (Block Diagrams, Schematics, Operational Descriptions, BOM, Tune Up Procedure) required to be submitted with this application be permanently withheld from public review. The above documents are company proprietary information that could never get into the possession of your competition. Please contact me if there is any information you may need. Sincerely, Signature: Name: Li Hua Applicant: Guangzhou Devecent Information Technology Co.,Ltd. Address: Rm 402,Building A,No.11,CaiPin Road,Science City,HuangPu District,GuangZhou,GuangDong,China TEL: +86 15918790220

date: 2023-9-14 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Eurofins Electrical Testing Service (Shenzhen) Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: Li Hua Applicant: Guangzhou Devecent Information Technology Co.,Ltd. Address: Rm 402,Building A,No.11,CaiPin Road,Science City,HuangPu District,GuangZhou,GuangDong,China TEL: +86 15918790220

UHF Antenna

2G 3G 4G Antenna BT/WIFI Antenna

Any reproduction of this document must be done in full. No single part of this document may be reproduced without permission from STS, all test data presented in this report is only applicable to presented test sample. Radio Test Report Report No.: STS2307028H01 Issued for Guangzhou Devecent Information Technology Co., Ltd. Rm 402, Building A, No.11, CaiPin Road, Science City, HuangPu District, GuangZhou, GuangDong, China Product Name: High Precision GNSS Receiver Brand Name: ZX Model Name: M68G Series Model(s): N/A FCC ID: 2BB82-M68G Test Standards: FCC 47CFR §2.1091 Page 2 of 11 Report No.: STS2307028H01 TEST REPORT Applicant’s Name ................. : Guangzhou Devecent Information Technology Co., Ltd. Address ................................. : Rm 402, Building A, No.11, CaiPin Road, Science City, HuangPu District, GuangZhou, GuangDong, China Manufacturer's Name .......... : Guangzhou Devecent Information Technology Co., Ltd. Address ................................. : Rm 402, Building A, No.11, CaiPin Road, Science City, HuangPu District, GuangZhou, GuangDong, China Product Description Product Name ........................ : High Precision GNSS Receiver Brand Name .......................... : ZX Model Name .......................... : M68G Series Model(s) ..................... : N/A Test Standards ..................... : FCC 47CFR §2.1091 447498 D04 Interim General RF Exposure Guidance v01 This report shall not be reproduced except in full, without the written approval of STS, this document only be altered or revised by STS, personal only, and shall be noted in the revision of the document. Date of Test ........................................... : Date of receipt of test item ..................... : 06 July 2023 Date (s) of performance of tests ............. : 06 July 2023 ~ 30 Aug. 2023 Date of Issue .......................................... : 30 Aug. 2023 Test Result.............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Sean she) Authorized Signatory : (Chris Chen) Page 3 of 11 Report No.: STS2307028H01 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 7 2. FCC 47CFR §2.1091 REQUIREMENT 8 2.1 TEST STANDARDS 8 2.2 LIMIT 8 2.3 TEST RESULT 9 Page 4 of 11 Report No.: STS2307028H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 30 Aug. 2023 STS2307028H01 ALL Initial Issue Page 5 of 11 Report No.: STS2307028H01 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name High Precision GNSS Receiver Brand ZX Model Number M68G Series Model(s) N/A Model Difference N/A Product Description The EUT is High Geodetic GNSS receiver Operation Frequency: GSM 850: 824 MHz ~ 849MHz GSM 1900: 1850 MHz ~ 1910MHz WCDMA 1900: 1850 MHz ~1910MHz WCDMA 1700: 1710 MHz ~ 1755 MHz WCDMA 850: 824 MHz ~ 849 MHz LTE Band 2:1850~1910MHz LTE Band 4:1710~1755MHz LTE Band 5:824~849MHz LTE Band 7:2500~2570MHz LTE Band 12:699~716MHz LTE Band 13:777~787MHz LTE Band 25:1850~1915 MHz LTE Band 26: 814~849 MHz LTE Band 38: 2570~2620 MHz LTE Band 41: 2496~2690 MHz UHF: 421-470MHz Bluetooth: 2402 MHz to 2480 MHz 2.4G WLAN: 802.11b/g/n(20MHz): 2412MHz to 2462 MHz 802.11n(40MHz): 2422MHz to 2452 MHz 5G WIFI: 802.11a/ n(HT20)/ac(VHT20): 5.180GHz-5.825GHz 802.11n(HT40)/ac(VHT40): 5.190GHz-5.795GHz 802.11ac(VHT80): 5.210GHz-5.775GHz Modulation Type: GMSK and 8PSK for EDGE WCDMA: QPSK LTE: QPSK /16QAM UHF: 4FSK BLE: GFSK 2.4G WLAN: 802.11b(DSSS):CCK,DQPSK,DBPSK 802.11g/n(OFDM):BPSK,QPSK,16-QAM,64- QAM 5G WIFI: 802.11a(OFDM): BPSK,QPSK,16-QAM,64-QAM 802.11n(OFDM): BPSK,QPSK,16-QAM,64-QAM 802.11ac(OFDM): BPSK,QPSK,16-QAM,64-QAM,256-QAM Page 6 of 11 Report No.: STS2307028H01 Antenna gain: GSM / WCDMA / LTE :0.5dBi UHF:4dBi Bluetooth/2.4G WLAN/5G WLAN: 3dBi Antenna Designation: GSM / WCDMA / LTE :Internal Antenna UHF: Rod Antenna Bluetooth/2.4G WLAN/5G WLAN: Fixed Extemal antenna Rating Output: support MTK PE+ 1.1/2.0 9V/2A support USB PD 12V/1.25A support 5V/3A Battery Rated Voltage:7.4V Capacity: 6500 Adapter: Input: 100-240V AC, 50/60Hz, 0.5A Output: DC 5V, 3.0A 15.0W DC 9V, 1.0A 18.0W DC 12V, 1.5A 18.0W Hardware Version N/A Software Version N/A Page 7 of 11 Report No.: STS2307028H01 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 8 of 11 Report No.: STS2307028H01 2. FCC 47CFR §2.1091 REQUIREMENT 2.1 TEST STANDARDS The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 is followed. The gain of the antennas used in the product is extracted from the Antenna data sheets provided and also the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. Although the Friis Transmission formula is far field assumption, the calculated result of that is an over-prediction for near field power density. It is taken as worst case to specify the safety range. 2.2 LIMIT According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of the human exposure to radio-frequency (RF) radiation as specified in 1.1307 (b) Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm²) Limits for Occupational / controlled Exposures 300 - 1500 -- -- F/300 1500 – 100000 -- -- 5.0 Limits for General population / Uncontrolled Exposure 300 - 1500 -- -- F/1500 1500 – 100000 -- -- 1.0 F= Frequency in MHz Friss Formula Friss Transmission Formula: Pd = (Pout * G) / (4*pi*r²) Where Pd = power density in mW/cm² Pout = output power to antenna in mW G = gain o…

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Harxon Corporation Address: 9F, Block B, D3 Building, TCL International E City,No.1001 Zhongshanyuan Road, Nanshan District, ShenZhen,CHINA Fax: +86-755-26989994 HX-CSX161A Built-in measurement antenna Key Features ●Support GNSS four system full band signal ● Support 4G, BT ● Strong anti-interference ability, can withstand harsh working environment ● Good electromagnetic compatibility, small antenna size, easy product integration HX-CSX161A is a four-system full-frequency built-in measurement antenna covering GPS, GLONASS, BDS and GALILEO, and it is compatible with 4G and BT working bands to meet the current demand for multi-system compatibility of measurement equipment. It can be widely used in geodetic surveying and mapping, marine surveying, channel surveying, dredging surveying, earthquake monitoring, bridge deformation monitoring, landslide monitoring, container operation at the dock, etc. Perfect compatibility between systems The GNSS antenna and 4G, BT antenna do compatible integration, easy to RTK machine manufacturers to integrate the design. And for each system antenna isolation between the depth of optimization, systematic solution has been plagued by RTK receiver electromagnetic compatibility problems, so that the RTK machine design work is simplified, the product is stable and reliable. High structural reliability The communication antenna and GNSS positioning antenna substrate are molded in one piece by using self-researched microwave material, with lower loss, lighter weight, smaller antenna size, high precision, good consistency, and more stable and reliable electrical performance. Strong anti-interference performance Antenna LNA has excellent out-of-band rejection performance, which can suppress useless electromagnetic wave signals and avoid receiver interference by other wireless communication systems, effectively reducing the risk of system loss of lock, such as electromagnetic wave interference from power grids, communication base stations, radio stations, etc. Highly stable phase center The antenna part adopts multi-feed point design scheme to realize the coincidence of phase center and geometric center, which reduces the influence of antenna on measurement error to the minimum. 4G antenna group array design, and 4G antennas are distributed around GNSS antennas, with good symmetry structure, which well solves the influence of communication antennas on positioning antennas and ensures the consistency of phase center of positioning antennas. Tracking in complex environments The antenna unit has the characteristics of high gain and wide directional map beam to ensure that the antenna still has a strong signal reception effect at low elevation angles, ensuring that it can quickly lock on to the satellite and output GNSS navigation signal stably even in complex environments such as obscured trees and buildings. Harxon Corporation Address: 9F, Block B, D3 Building, TCL International E City,No.1001 Zhongshanyuan Road, Nanshan District, ShenZhen,CHINA Fax: +86-755-26989994 HX-CSX161A Built-in measurement antenna Antenna Characteristics Frequency range GPS L1/L2/L5/L-Band BDS B1/B2/B3 GLONASS L1/L2/L3 GALILEO E1/E6/E5a/E5b 4G、BT\WIFI Impedance 50 Ohm Polarization method Right rotation Circular polarization Antenna axis ratio ≤3dB Horizontal plane coverage angle 360° Output standing wave ≤2.0 Maximum gain GNSS : 1164-1230&1525-1615MHz: 5.9dBi BT/WIFI : 2400-2480MHz：1.2dBi 2G/3G/4G : 820-960MHz：-4.35dBi 1710-2690MHz：2.67dBi Phase center height (using the lower surface of the PCB as a reference plane) L2：13.1mm L1：12.7mm Phase center error ±2mm Low noise amplifier index Gain 40±2dB Noise factor ≤2dB Output standing wave ≤2.0 In-band flatness ±2dB Operating Voltage +3.3～+12VDC Operating current ≤45mA Differential transmission delay ≤5ns Structural characteristics Antenna Size Φ134.5*24.4mm Joint form GNSS：MCX-C-JW1.5 4G MAIN and DIV/BT/WIFI：IPEX with locking buckle Working Environment Operating temperature -40°C～+85°C Storage temperature -55°C～+85°C Humidity 95% Non-condensing Performance Parameters Harxon Corporation Address: 9F, Block B, D3 Building, TCL International E City,No.1001 Zhongshanyuan Road, Nanshan District, ShenZhen,CHINA Fax: +86-755-26989994 HX-CSX161A Built-in measurement antenna Frequency Points （MHz） 1176 1206 1227 1268 1542 1561 1575 1591 Maximum Gain （dBi） 3.31 5.23 5.91 5.14 4.55 5.61 5.79 5.92 1176MHz Direction schematic 1206MHz Direction schematic 1227MHz Direction schematic 1268MHzDirection schematic GNSS Antenna Performance Harxon Corporation Address: 9F, Block B, D3 Building, TCL International E City,No.1001 Zhongshanyuan Road, Nanshan District, ShenZhen,CHINA Fax: +86-755-26989994 HX-CSX161A Built-in measurement antenna 1542MHz Direction schematic 1565MHz Direction schematic 1575MHz Direction schematic 1591MHz Direction schematic Harxon Corporation Address: 9F, Block B, D3 Building, TCL International E City,No.1001 Zhongshanyuan Road, Nanshan District, ShenZhen,CHINA Fax: +86-755-26989994 HX-CSX161A Built-in measurement antenna Network Antenna Performance Frequency （MHz） 820 840 860 880 900 920 940 960 Maximum Gain （dBi） -6.23 -5.01 -4.56 -4.35 -4.95 -5.23 -6.25 -7.24 Frequency （MHz） 1710 1790 1870 1950 2030 2110 2190 2270 2350 2430 Maximum Gain （dBi） -4.38 -4.02 -4.35 -4.65 -3.77 -2.87 -1.80 -0.32 0.76 2.89 Frequency （MHz） 2510 2590 2670 Maximum Gain （dBi） 0.88 1.42 0.33 4G-MAIN Gain Table 4G-MAIN Antenna VSWR Harxon Corporation Address: 9F, Block B, D3 Building, TCL International E City,No.1001 Zhongshanyuan Road, Nanshan District, ShenZhen,CHINA Fax: +86-755-26989994 HX-CSX161A Built-in measurement antenna 4G-MAIN Antenna Gain Curves Harxon Corporation Address: 9F, Block B, D3 Building, TCL International E City,No.1001 Zhongshanyuan Road, Nanshan District, ShenZhen,CHINA Fax: +86-755-26989994 HX-CSX161A Built-in measurement antenna 4G-MAIN Antenna efficiency graph Frequency （MHz） 820 840 860 880 900 920 940 960 Maximum Gain （dBi） -6.56 -5.35 -4.87 …

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Appendix A: Conducted emission AC power port Final Data List NO. Freq. [MHz] Factor [dB] QP Value [dBμV] QP Limit [dBμV] QP Margin [dB] AV Value [dBμV] AV Limit [dBμV] AV Margin [dB] Polarity Verdict 1 0.9927 10.28 40.47 56.00 15.53 30.74 46.00 15.26 L1 PASS 2 1.1791 10.28 41.51 56.00 14.49 31.35 46.00 14.65 L1 PASS 3 1.4302 10.28 42.99 56.00 13.01 32.01 46.00 13.99 L1 PASS 4 2.1834 10.29 42.55 56.00 13.45 29.55 46.00 16.45 L1 PASS 5 7.2316 10.43 33.86 60.00 26.14 24.95 50.00 25.05 L1 PASS 6 28.8542 10.69 33.26 60.00 26.74 22.67 50.00 27.33 L1 PASS Final Data List NO. Freq. [MHz] Factor [dB] QP Value [dBμV] QP Limit [dBμV] QP Margin [dB] AV Value [dBμV] AV Limit [dBμV] AV Margin [dB] Polarity Verdict 1 0.9886 10.28 40.42 56.00 15.58 27.00 46.00 19.00 N PASS 2 1.3047 10.28 43.37 56.00 12.63 31.22 46.00 14.78 N PASS 3 1.4351 10.28 44.34 56.00 11.66 30.98 46.00 15.02 N PASS 4 1.5582 10.29 44.06 56.00 11.94 31.25 46.00 14.75 N PASS 5 3.9377 10.41 33.65 56.00 22.35 22.56 46.00 23.44 N PASS 6 7.1135 10.43 34.57 60.00 25.43 26.09 50.00 23.91 N PASS Appendix B: Restricted Band Mode: 11B-2412 Final Data List NO. Freq. [MHz] Factor [dB/m] PK Value [dBμV/m] PK Limit [dBμV/m] PK Margin [dB] AV Value [dBμV/m] AV Limit [dBμV/m] AV Margin [dB] Height [cm] Angle [°] Polarity Verdict 1 2310 7.07 44.90 74.00 29.10 42.15 54.00 11.85 150 226 Horizontal PASS 2 2333.68 7.21 47.04 74.00 26.96 43.19 54.00 10.81 150 90 Horizontal PASS 3 2342.08 7.29 46.59 74.00 27.41 44.29 54.00 9.71 150 260 Horizontal PASS 4 2382.64 8.01 47.23 74.00 26.77 42.88 54.00 11.12 150 130 Horizontal PASS 5 2387.36 8.24 47.68 74.00 26.32 43.73 54.00 10.27 150 130 Horizontal PASS 6 2390 8.38 47.37 74.00 26.63 43.65 54.00 10.35 150 333 Horizontal PASS Final Data List NO. Freq. [MHz] Factor [dB/m] PK Value [dBμV/m] PK Limit [dBμV/m] PK Margin [dB] AV Value [dBμV/m] AV Limit [dBμV/m] AV Margin [dB] Height [cm] Angle [°] Polarity Verdict 1 2310 7.07 44.33 74.00 29.67 41.56 54.00 12.44 150 338 Vertical PASS 2 2332.56 7.28 46.61 74.00 27.39 43.97 54.00 10.03 150 310 Vertical PASS 3 2351.76 7.23 46.85 74.00 27.15 43.06 54.00 10.94 150 51 Vertical PASS 4 2369.12 7.46 46.52 74.00 27.48 44.87 54.00 9.13 150 196 Vertical PASS 5 2386.48 8.24 47.73 74.00 26.27 45.28 54.00 8.72 150 57 Vertical PASS 6 2390 8.38 47.79 74.00 26.21 45.39 54.00 8.61 150 196 Vertical PASS Mode: 11B-2462 Final Data List NO. Freq. [MHz] Factor [dB/m] PK Value [dBμV/m] PK Limit [dBμV/m] PK Margin [dB] AV Value [dBμV/m] AV Limit [dBμV/m] AV Margin [dB] Height [cm] Angle [°] Polarity Verdict 1 2483.5 8.62 49.19 74.00 24.81 46.62 54.00 7.38 150 154 Horizontal PASS 2 2483.995 8.55 49.97 74.00 24.03 47.33 54.00 6.67 150 150 Horizontal PASS 3 2486.371 8.37 48.26 74.00 25.74 45.61 54.00 8.39 150 294 Horizontal PASS 4 2488.2025 8.22 48.96 74.00 25.04 44.65 54.00 9.35 150 338 Horizontal PASS 5 2494.654 8.46 48.41 74.00 25.59 45.26 54.00 8.74 150 349 Horizontal PASS 6 2500 8.10 45.92 74.00 28.08 43.30 54.00 10.70 150 101 Horizontal PASS Final Data List NO. Freq. [MHz] Factor [dB/m] PK Value [dBμV/m] PK Limit [dBμV/m] PK Margin [dB] AV Value [dBμV/m] AV Limit [dBμV/m] AV Margin [dB] Height [cm] Angle [°] Polarity Verdict 1 2483.5 8.62 50.71 74.00 23.29 48.05 54.00 5.95 150 206 Vertical PASS 2 2483.83 8.58 52.10 74.00 21.90 47.15 54.00 6.85 150 212 Vertical PASS 3 2484.1105 8.54 51.91 74.00 22.09 48.13 54.00 5.87 150 215 Vertical PASS 4 2484.5065 8.52 51.66 74.00 22.34 47.73 54.00 6.27 150 196 Vertical PASS 5 2485.612 8.43 49.93 74.00 24.07 46.36 54.00 7.64 150 215 Vertical PASS 6 2500 8.10 45.42 74.00 28.58 42.99 54.00 11.01 150 104 Vertical PASS Mode: 11G-2412 Final Data List NO. Freq. [MHz] Factor [dB/m] PK Value [dBμV/m] PK Limit [dBμV/m] PK Margin [dB] AV Value [dBμV/m] AV Limit [dBμV/m] AV Margin [dB] Height [cm] Angle [°] Polarity Verdict 1 2310 7.07 44.01 74.00 29.99 41.44 54.00 12.56 150 176 Horizontal PASS 2 2362.72 7.41 46.86 74.00 27.14 41.13 54.00 12.87 150 92 Horizontal PASS 3 2373.44 7.70 46.47 74.00 27.53 42.45 54.00 11.55 150 83 Horizontal PASS 4 2388.64 8.30 51.83 74.00 22.17 47.56 54.00 6.44 150 332 Horizontal PASS 5 2389.4401 8.36 45.51 74.00 28.49 44.62 54.00 9.38 146.9 330.8 Horizontal PASS 6 2390.0000 8.38 57.59 74.00 16.41 43.54 54.00 10.46 150 332 Horizontal PASS Final Data List NO. Freq. [MHz] Factor [dB/m] PK Value [dBμV/m] PK Limit [dBμV/m] PK Margin [dB] AV Value [dBμV/m] AV Limit [dBμV/m] AV Margin [dB] Height [cm] Angle [°] Polarity Verdict 1 2310 7.07 43.78 74.00 30.22 41.38 54.00 12.62 150 113 Vertical PASS 2 2327.28 7.14 45.88 74.00 28.12 41.04 54.00 12.96 150 232 Vertical PASS 3 2370.88 7.52 46.23 74.00 27.77 43.85 54.00 10.15 150 9 Vertical PASS 4 2384.72 8.13 47.38 74.00 26.62 42.06 54.00 11.94 150 131 Vertical PASS 5 2388.56 8.29 51.41 74.00 22.59 49.29 54.00 4.71 150 214 Vertical PASS 6 2390 8.38 59.45 74.00 14.55 49.13 54.00 4.87 150 198 Vertical PASS Mode: 11G-2462 Final Data List NO. Freq. [MHz] Factor [dB/m] PK Value [dBμV/m] PK Limit [dBμV/m] PK Margin [dB] AV Value [dBμV/m] AV Limit [dBμV/m] AV Margin [dB] Height [cm] Angle [°] Polarity Verdict 1 2483.5 8.62 55.22 74.00 18.78 50.58 54.00 3.42 150 175 Horizontal PASS 2 2483.5495 8.62 55.93 74.00 18.07 47.46 54.00 6.54 150 175 Horizontal PASS 3 2483.863 8.57 54.65 74.00 19.35 50.62 54.00 3.38 150 175 Horizontal PASS 4 2484.1765 8.54 54.37 74.00 19.63 49.88 54.00 4.12 150 175 Horizontal PASS 5 2485.8265 8.40 54.38 74.00 19.62 47.10 54.00 6.90 150 175 Horizontal PASS 6 2500 8.10 44.49 74.00 29.51 42.58 54.00 11.42 150 175 Horizontal PASS Final Data List NO. Freq. [MHz] Factor [dB/m] PK Value [dBμV/m] PK Limit [dBμV/m] PK Margin [dB] AV Value [dBμV/m] AV Limit [dBμV/m] AV Margin [dB] Height [cm] Angle [°] Polarity Verdict 1 2483.5 8.62 56.95 74.00 17.05 50.14 54.00 3.86 150 216 Vertical PASS 2 2483.698 8.60 58.70 74.00 15.30 49.77 54.00 4.23 150 210 Vertical PASS 3 2483.962 8.56 58.36 74.00 15.64 50.66 54.00 3.34 150 213 Vertical PASS 4 2485.4305 8.45 55.21 74.00 18.79 50.17 54.00 3.83 150 207 Verti…

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Page 1 of 16 EUROFINS ELECTRICAL TESTING SERVICE (SHENZHEN) CO., LTD. RADIO TEST - REPORT FCC Compliance Test Report for Product name: High Precision GNSS Receiver Model name: M68G FCC ID: 2BB82-M68G Test Report Number: EFGX23070007-IE-03-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. Phone: +86-0755-829118671 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, Fax: +86-0755-82910749 No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China Page 2 of 16 Content 1 General Information 3 1.1 Notes 3 1.2 Testing laboratory 4 1.3 Details of applicant 4 1.4 Details of manufacturer 4 1.5 Application details 5 1.6 Test item 5 1.7 Test standards 5 2 Technical test 6 2.1 Summary of test results 6 2.2 Test environment 6 2.3 Measurement uncertainty 6 2.4 Test mode 7 2.5 Test equipment utilized 8 2.6 Auxiliary equipment used during test 9 2.7 Test software information 9 2.8 Test setup 10 2.9 Test results 12 3 Technical Requirement 13 3.1 Conducted emission AC power port 13 3.2 Spurious emissions & Restricted Band 14 4 Test Setup Photos 16 5 External Photos 16 6 Internal Photos 16 7 Appendix 16 Test Report No.: EFGX23070007-IE-03-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 3 of 16 1 General Information 1.1 Notes The results of this test report relate exclusively to the item tested as specified in chapter “Description of test item” and are not transferable to any other test items. Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. is not responsible for any generalisations and conclusions drawn from this report. Any modification of the test item can lead to invalidity of test results and this test report may therefore be not applicable to the modified test item. The test report may only be reproduced or published in full. Reproducing or publishing extracts of the report requires the prior written approval of the Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. This document is subject to the General Terms and Conditions and the Testing and Certification System of Eurofins Electrical Testing Service (Shenzhen) Co., Ltd., available on request or accessible at www.eurofins.com. Operator 2023-09-14 Bruce Zheng / Project Engineer Date Eurofins-Lab. Name / Title Signature Technical responsibility for area of testing: 2023-09-14 Albert Xu / Lab Manager Date Eurofins-Lab. Name / Title Signature Test Report No.: EFGX23070007-IE-03-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 4 of 16 1.2 Testing laboratory Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone : +86-755-82911867 Fax : +86-755-82910749 The Laboratory has passed the Accreditation by the American Association for Laboratory Accrediation (A2LA). The Accreditation number is 5376.01 The Laboratory has been listed by industry Canada to perform electromagnetic emission measurements, The CAB identifier is CN0088 1.3 Details of applicant Name : Guangzhou Devecent Information Technology Co.,Ltd. Address : Rm 402,Building A,No.11,CaiPin Road,Science City,HuangPu District,GuangZhou,GuangDong,China Telephone : ./. Fax : ./. 1.4 Details of manufacturer Name : Guangzhou Devecent Information Technology Co.,Ltd. Address : Rm 402,Building A,No.11,CaiPin Road,Science City,HuangPu District,GuangZhou,GuangDong,China Telephone : ./. Fax : ./. Test Report No.: EFGX23070007-IE-03-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 5 of 16 1…

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