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FCC ID: MXF-WMDS183

Test Report

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FCCID_4074827

FCC C2PC Test Report FCC ID : MXF-WMDS183 Equipment : LoRa RF Board Model No. : WMDS-183 Brand Name : Gemtek Applicant : Gemtek Technology Co., Ltd. Address : No.15-1 Zhoughua Rd, Hsinchu Industrial Park, Hukou, Hsinchu, Taiwan, R.O.C Standard : 47 CFR FCC Part 15.247 Received Date : Oct. 24, 2018 Tested Date : Oct. 26 ~ Oct. 30, 2018 We, International Certification Corp., would like to declare that the tested sample has been evaluated and in compliance with the requirement of the above standards. The test results contained in this report refer exclusively to the product. It may be duplicated completely for legal use with the approval of the applicant. It shall not be reproduced except in full without the written approval of our laboratory. Reviewed by: Approved by: Along Chen / Assistant Manager Gary Chang / Manager Report No.: FR782401-06 Page : 1 of 26 Report Version: Rev. 01

Table of Contents 1 GENERAL DESCRIPTION .................................................................................................................... 5 1.1 Information.............................................................................................................................................. 5 1.2 Local Support Equipment List ................................................................................................................ 7 1.3 Test Setup Chart .................................................................................................................................... 7 1.4 The Equipment List ................................................................................................................................ 8 1.5 Test Standards ....................................................................................................................................... 9 1.6 Measurement Uncertainty ...................................................................................................................... 9 2 TEST CONFIGURATION .....................................................................................................................10 2.1 Testing Condition .................................................................................................................................10 2.2 The Worst Test Modes and Channel Details .......................................................................................10 3 TRANSMITTER TEST RESULTS........................................................................................................11 3.1 Conducted Emissions ...........................................................................................................................11 3.2 Unwanted Emissions into Restricted Frequency Bands ......................................................................16 4 TEST LABORATORY INFORMATION ...............................................................................................26 Report No.: FR782401-06 Page : 2 of 26 Report Version: Rev. 01

Release Record Report No. Version Description Issued Date FR782401-06 Rev. 01 Initial issue Nov. 14, 2018 Report No.: FR782401-06 Page : 3 of 26 Report Version: Rev. 01

Summary of Test Results FCC Rules Test Items Measured Result [dBuV]: 0.300MHz 15.207 Conducted Emissions Pass 41.67 (Margin -8.57dB) - AV 15.247(d) [dBuV/m at 3m]: 110.14MHz Radiated Emissions Pass 15.209 38.65 (Margin -4.85dB) - PK Report No.: FR782401-06 Page : 4 of 26 Report Version: Rev. 01

1 General Description 1.1 Information This report is prepared for FCC class II change. This report is issued as a supplementary report to original ICC report no. FR782401. The difference is concerned with following items:  Adding 2nd baseband IC, Model name: SX1308 (pin for pin compatible)  Adding components on exist path to switch transmission path In this report, conducted emission and radiated emission tests had been re-tested and only its data was presented in the following sections. 1.1.1 Specification of the Equipment under Test (EUT) RF General Information Channel Frequency Channel Data Rate Ch. Freq. (MHz) Spread Factor Bandwidth Range (MHz) Number (bit/sec) (kHz) 902 ~ 928 923.3 ~ 927.5 1 ~ 8 [8] 980 ~ 21900 12 ~ 7 500 Note 1: RF output power specifies that Maximum Conducted (Average) Output Power. Note 2: The device uses CSS modulation. 1.1.2.1 Antenna of Host Ant. Brand Part Number Type Connector Gain (dBi) No. 1 GSC-TECH OMA-G04A Dipole N-Type 3 2 GSC-TECH OMA-G03A Dipole N-Type 5 3 GSC-TECH OMA-G01 Dipole N-Type 8 4 Auden A40816-90 Dipole N-Type 3 5 Lynwave OOX17X-021030-00 Dipole N-Type 3 6 Lynwave OOX17X-021050-00 Dipole N-Type 5 7 Lynwave OOX17X-021080-00 Dipole N-Type 8 Note: The Ant. 3 with highest gain was selected for final testing 1.1.2.2 Power Supply Type of Host Power Supply Type 5Vdc from host Report No.: FR782401-06 Page : 5 of 26 Report Version: Rev. 01

1.1.2.3 Accessories of Host N/A 1.1.2 Channel List Channel Frequency(MHz) 1 923.3 2 923.9 3 924.5 4 925.1 5 925.7 6 926.3 7 926.9 8 927.5 Report No.: FR782401-06 Page : 6 of 26 Report Version: Rev. 01

C Infernational Certification Corp. 1.2 Local Support Equipment List Support Equipment List No. Equipment Brand Model FCC ID Remarks 1 Test box machineQ HXQX1AMOS Provided by applicant. p Testbox Power source puipjopyg PSAC24A—120L 6 Provided by applicant. 3 Fixture 1.3 Test Setup Chart Test Setup Diagram Ant. \—I Test box EUT ‘F Test box Power source Fixture Report No.: FR782401—06 Page : 7 of 26 Report Version: Rev. 01

1.4 The Equipment List Test Item Conducted Emission Test Site Conduction room 1 / (CO01-WS) Tested Date Oct. 30, 2018 Instrument Manufacturer Model No. Serial No. Calibration Date Calibration Until Receiver R&S ESR3 101657 Jan. 05, 2018 Jan. 04, 2019 LISN SCHWARZBECK Schwarzbeck 8127 8127-667 Nov. 13, 2017 Nov. 12, 2018 EMCCFD300-BM-B RF Cable-CON EMC 50821 Dec. 18, 2017 Dec. 17, 2018 M-6000 Measurement AUDIX e3 6.120210k NA NA Software Note: Calibration Interval of instruments listed above is one year. Test Item Radiated Emission Test Site 966 chamber1 / (03CH01-WS) Tested Date Oct. 26, 2018 Instrument Manufacturer Model No. Serial No. Calibration Date Calibration Until Spectrum Analyzer R&S FSV40 101498 Dec. 04, 2017 Dec. 03, 2018 Receiver R&S ESR3 101658 Nov. 20, 2017 Nov. 19, 2018 Bilog Antenna SCHWARZBECK VULB9168 VULB9168-522 Jul. 18, 2018 Jul. 17, 2019 Horn Antenna SCHWARZBECK BBHA 9120 D BBHA 9120 D 1096 Dec. 20, 2017 Dec. 19, 2018 1G-18G Preamplifier EMC EMC02325 980225 Jul. 20, 2018 Jul. 19, 2019 Preamplifier Agilent 83017A MY39501308 Oct. 04, 2018 Oct. 03, 2019 Preamplifier EMC EMC184045B 980192 Aug. 09, 2018 Aug. 08, 2019 RF Cable HUBER+SUHNER SUCOFLEX104 MY16140/4 May 09, 2018 May 08, 2019 RF Cable HUBER+SUHNER SUCOFLEX104 MY16019/4 Dec. 07, 2017 Dec. 06, 2018 RF Cable HUBER+SUHNER SUCOFLEX104 MY16139/4 Dec. 07, 2017 Dec. 06, 2018 EMCCFD400-NM-N LF cable 1M EMC 16052 Dec. 07, 2017 Dec. 06, 2018 M-1000 LF cable 3M Woken CFD400NL-LW CFD400NL-001 Dec. 07, 2017 Dec. 06, 2018 LF cable 10M Woken CFD400NL-LW CFD400NL-002 Dec. 07, 2017 Dec. 06, 2018 Measurement AUDIX e3 6.120210g NA NA Software Note: Calibration Interval of instruments listed above is one year. Report No.: FR782401-06 Page : 8 of 26 Report Version: Rev. 01

C Infernational Certification Corp. 1.5 Test Standards According to the specification of EUT, the EUT must comply with following standards and KDB documents. 47 CFR FCC Part 15.247 ANSI C63.10—2013 FCC KDB 558074 DO1 15.247 Meas Guidance v05 1.6 Measurement Uncertainty I1SO/IEC 17025 requires that an estimate of the measurement uncertainties associated with the emissions test results be included in the report. The measurement uncertainties given below are based on a 95% confidence level (based on a coverage factor (k=2) Measurement Uncertainty Parameters Uncertainty Bandwidth +34.134 Hz Conducted power +0.808 dB Power density +0.463 dB Conducted emission +2.670 dB AC conducted emission £+2.90 dB Radiated emission < 1GHz +3.66 dB Radiated emission > 1GHz £+5.63 dB Report No.: FR782401—06 Page : 9 of 26 Report Version: Rev. 01

2 Test Configuration 2.1 Testing Condition Test Item Test Site Ambient Condition Tested By AC Conduction CO01-WS 24°C / 57% Alex Tsai Radiated Emissions 03CH01-WS 26°C / 60% Akun Chung  FCC Designation No.: TW2732  FCC site registration No.: 181692  IC site registration No.: 10807A-1 2.2 The Worst Test Modes and Channel Details Test Frequency Channel Test Test item Modulation / SF (MHz) Bandwidth (kHz) Configuration Conducted Emissions 923.3 / 927.5 500 CSS / 12 --- Radiated Emissions 923.3 / 927.5 500 CSS / 12 --- NOTE: 1. The EUT was pretested with 3 orientations placed on the table for the radiated emission measurement – X, Y, and Z-plane. The Y-plane results were found as the worst case and were shown in this report. . Report No.: FR782401-06 Page : 10 of 26 Report Version: Rev. 01

3 Transmitter Test Results 3.1 Conducted Emissions 3.1.1 Limit of Conducted Emissions Conducted Emissions Limit Frequency Emission (MHz) Quasi-Peak Average 0.15-0.5 66 - 56 * 56 - 46 * 0.5-5 56 46 5-30 60 50 Note 1: * Decreases with the logarithm of the frequency. 3.1.2 Test Procedures 1. The device is placed on a test table, raised 80 cm above the reference ground plane. The vertical conducting plane is located 40 cm to the rear of the device. 2. The device is connected to line impedance stabilization network (LISN) and other accessories are connected to other LISN. Measured levels of AC power line conducted emission are across the 50 Ω LISN port. 3. AC conducted emission measurements is made over frequency range from 150 kHz to 30 MHz. 4. This measurement was performed with AC 120V / 60Hz. 3.1.3 Test Setup Report No.: FR782401-06 Page : 11 of 26 Report Version: Rev. 01

3.1.4 Test Result of Conducted Emissions Modulation / SF CSS / 12 Test Freq. (MHz) 923.3 Power Phase Line Note 1: Level (dBuV) = Read Level (dBuV) + LISN Factor (dB) + Cable Loss (dB). 2: Over Limit (dB) = Level (dBuV) – Limit Line (dBuV). Report No.: FR782401-06 Page : 12 of 26 Report Version: Rev. 01

Modulation / SF CSS / 12 Test Freq. (MHz) 923.3 Power Phase Neutral Note 1: Level (dBuV) = Read Level (dBuV) + LISN Factor (dB) + Cable Loss (dB). 2: Over Limit (dB) = Level (dBuV) – Limit Line (dBuV). Report No.: FR782401-06 Page : 13 of 26 Report Version: Rev. 01

Modulation / SF CSS / 12 Test Freq. (MHz) 927.5 Power Phase Line Note 1: Level (dBuV) = Read Level (dBuV) + LISN Factor (dB) + Cable Loss (dB). 2: Over Limit (dB) = Level (dBuV) – Limit Line (dBuV). Report No.: FR782401-06 Page : 14 of 26 Report Version: Rev. 01

Modulation / SF CSS / 12 Test Freq. (MHz) 927.5 Power Phase Neutral Note 1: Level (dBuV) = Read Level (dBuV) + LISN Factor (dB) + Cable Loss (dB). 2: Over Limit (dB) = Level (dBuV) – Limit Line (dBuV). Report No.: FR782401-06 Page : 15 of 26 Report Version: Rev. 01

C Infernational Certification Corp. 3.2 Unwanted Emissions into Restricted Frequency Bands 3.2.1 Limit of Unwanted Emissions into Restricted Frequency Bands Restricted Band Emissions Limit Frequency Range (MHz)| Field Strength (uV/m) |Field Strength (dBuV/m)| Measure Distance (m) 0.009~0.490 2400/F(kHz) 48.5 — 13.8 300 0.490~1.705 24000/F(kHz) 33.8 — 23 30 1.705~30.0 30 29 30 30~88 100 40 3 88~216 150 43.5 3 216~960 200 46 3 Above 960 500 54 3 Note 1: Qusai—Peak value is measured for frequency below 1GHz except for 9—90 kHz, 110—490 kHz frequency band. Peak and average value are measured for frequency above 1GHz. The limit on average radio frequency emission is as above table. The limit on peak radio frequency emissions is 20 dB above the maximum permitted average emission limit Note 2: Measurements may be performed at a distance other than what is specified provided. When performing measurements at a distance other than that specified, the results shall be extrapolated to the specified distance using an extrapolation factor as below, Frequency at or above 30 MHz: 20 dB/decade Frequency below 30 MHz: 40 dB/decade. 3.2.2 Test Procedures 1. Measurement is made at a semi—anechoic chamber that incorporates a turntable allowing a EUT rotation of 360°. A continuously—rotating, remotely—controlled turntable is installed at the test site to support the EUT and facilitate determination of the direction of maximum radiation for each EUT emission frequency. The EUT is placed at test table. For emissions testing at or below 1 GHz, the table height is 80 cm above the reference ground plane. For emission measurements above 1 GHz, the table height is 1.5 m 2. Measurement is made with the antenna positioned in both the horizontal and vertical planes of polarization. The measurement antenna is varied in height (1m ~4m) above the reference ground plane to obtain the maximum signal strength. Distance between EUT and antenna is 3 m. 3. This investigation is performed with the EUT rotated 360°, the antenna height scanned between 1 m and 4 m, and the antenna rotated to repeat the measurements for both the horizontal and vertical antenna polarizations. Note: 1. 120kHz measurement bandwidth of test receiver and Quasi—peak detector is for radiated emission below 1GHz. 2. RBW=1MHz, VBW=3MHz and Peak detector is for peak measured value of radiated emission above 1GHz. 3. RBW=1MHz, VBW=1/T and Peak detector is for average measured value of radiated emission above 1GHz. Report No.: FR782401—06 Page : 16 of 26 Report Version: Rev. 01

3.2.3 Test Setup Radiated Emissions below 1 GHz Radiated Emissions above 1 GHz Report No.: FR782401-06 Page : 17 of 26 Report Version: Rev. 01

3.2.4 Transmitter Radiated Unwanted Emissions (Below 1GHz) Modulation / SF CSS / 12 Test Freq. (MHz) 923.3 Polarization Horizontal Note 1: Emission Level (dBuV/m) = SA Reading (dBuV/m) + Factor* (dB) *Factor includes antenna factor , cable loss and amplifier gain Note 2: Margin (dB) = Emission level (dBuV/m) – Limit (dBuV/m). Note 3: All spurious emissions below 30MHz are more than 20 dB below the limit. Report No.: FR782401-06 Page : 18 of 26 Report Version: Rev. 01

Modulation / SF CSS / 12 Test Freq. (MHz) 923.3 Polarization Vertical Note 1: Emission Level (dBuV/m) = SA Reading (dBuV/m) + Factor* (dB) *Factor includes antenna factor , cable loss and amplifier gain Note 2: Margin (dB) = Emission level (dBuV/m) – Limit (dBuV/m). Note 3: All spurious emissions below 30MHz are more than 20 dB below the limit. Report No.: FR782401-06 Page : 19 of 26 Report Version: Rev. 01

Modulation / SF CSS / 12 Test Freq. (MHz) 927.5 Polarization Horizontal Note 1: Emission Level (dBuV/m) = SA Reading (dBuV/m) + Factor* (dB) *Factor includes antenna factor , cable loss and amplifier gain Note 2: Margin (dB) = Emission level (dBuV/m) – Limit (dBuV/m). Note 3: All spurious emissions below 30MHz are more than 20 dB below the limit. Report No.: FR782401-06 Page : 20 of 26 Report Version: Rev. 01

Modulation / SF CSS / 12 Test Freq. (MHz) 927.5 Polarization Vertical Note 1: Emission Level (dBuV/m) = SA Reading (dBuV/m) + Factor* (dB) *Factor includes antenna factor , cable loss and amplifier gain Note 2: Margin (dB) = Emission level (dBuV/m) – Limit (dBuV/m). Note 3: All spurious emissions below 30MHz are more than 20 dB below the limit. Report No.: FR782401-06 Page : 21 of 26 Report Version: Rev. 01

3.2.5 Transmitter Radiated Unwanted Emissions (Above 1GHz) Modulation / SF CSS / 12 Test Freq. (MHz) 923.3 Polarization Horizontal Note 1: Emission Level (dBuV/m) = SA Reading (dBuV/m) + Factor* (dB) *Factor includes antenna factor , cable loss and amplifier gain Note 2: Margin (dB) = Emission level (dBuV/m) – Limit (dBuV/m). Report No.: FR782401-06 Page : 22 of 26 Report Version: Rev. 01

Modulation / SF CSS / 12 Test Freq. (MHz) 923.3 Polarization Vertical Note 1: Emission Level (dBuV/m) = SA Reading (dBuV/m) + Factor* (dB) *Factor includes antenna factor , cable loss and amplifier gain Note 2: Margin (dB) = Emission level (dBuV/m) – Limit (dBuV/m). Report No.: FR782401-06 Page : 23 of 26 Report Version: Rev. 01

Modulation / SF CSS / 12 Test Freq. (MHz) 927.5 Polarization Horizontal Note 1: Emission Level (dBuV/m) = SA Reading (dBuV/m) + Factor* (dB) *Factor includes antenna factor , cable loss and amplifier gain Note 2: Margin (dB) = Emission level (dBuV/m) – Limit (dBuV/m). Report No.: FR782401-06 Page : 24 of 26 Report Version: Rev. 01

Modulation / SF CSS / 12 Test Freq. (MHz) 927.5 Polarization Vertical Note 1: Emission Level (dBuV/m) = SA Reading (dBuV/m) + Factor* (dB) *Factor includes antenna factor , cable loss and amplifier gain Note 2: Margin (dB) = Emission level (dBuV/m) – Limit (dBuV/m). Report No.: FR782401-06 Page : 25 of 26 Report Version: Rev. 01

C Infernational Certification Corp. 4 Test laboratory information Established in 2012, ICC provides foremost EMC & RF Testing and advisory consultation services by our skilled engineers and technicians. Our services employ a wide variety of advanced edge test equipment and one of the widest certification extents in the business. International Certification Corp (EMC and Wireless Communication Laboratory), it is our definitive objective is to institute long term, trust—based associations with our clients. The expectation we set up with our clients is based on outstanding service, practical expertise and devotion to a certified value structure. Our passion is to grant our clients with best EMC / RF services by oriented knowledgeable and accommodating staff. Our Test sites are located at Linkou District and Kwei Shan District. Location map can be found on our website http://www.icertifi.com.tw. Linkou Kwei Shan Kwei Shan Site II Tel: 886—2—2601—1640 Tel: 886—3—271—8666 Tel: 886—3—271—8640 No. 30—2, Ding Fwu Tsuen, Lin No. 3—1, Lane 6, Wen San 3rd St., No. 14—1, Lane 19, Wen San 3rd Kou District, New Taipei City, Kwei Shan District, Tao Yuan City St., Kwei Shan District, Tao Yuan Taiwan, R.0.C. 333, Taiwan, R.O.C. City 333, Taiwan, R.O.C. If you have any suggestion, please feel free to contact us as below information. Tel: 886—3—271—8666 Fax: 886—3—318—0155 Email: ICC_Service@icertifi.com.tw ==END= Report No.: FR782401—06 Page : 26 of 26 Report Version: Rev. 01


Document Created: 2019-05-14 03:36:58
Document Modified: 2019-05-14 03:36:58
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