Test report

FCC ID: 2AOW4KTX-USB

Test Report

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FCCID_3933594

Shenzhen CTL Testing Technology Co., Ltd. Tel: +86-755-89486194 E-mail: ctl@ctl-lab.com TEST REPORT 47 CFR FCC Part 15 Subpart C 15.231 Report Reference No. ................. : CTL1803122091-WF Compiled by: Allen Wang ( position+printed name+signature) (File administrators) Tested by: Nice Nong ( position+printed name+signature) (Test Engineer) Approved by: Ivan Xie ( position+printed name+signature) (Manager) Product Name.............................. : 433 MHz Transceiver Model/Type reference ................. : KTX433 List Model(s) ................................ : KTX433-USB/UART Trade Mark ................................... : KINGLORD FCC ID .......................................... : 2AOW4KTX-USB Applicant’s name ........................ : CM GLOBAL Address of applicant .................. : 1201 N. 4TH STREET, WATERTOWN, WI 53098, USA Test Firm ...................................... : Shenzhen CTL Testing Technology Co., Ltd. Floor 1-A, Baisha Technology Park, No.3011, Shahexi Road, Address of Test Firm .................. : Nanshan District, Shenzhen, China 518055 Test specification ........................ : Standard ........................................ : 47 CFR FCC Part 15 Subpart C 15.231 TRF Originator .............................. : Shenzhen CTL Testing Technology Co., Ltd. Master TRF ................................... : Dated 2011-01 Date of Receipt ............................ : Jun. 13, 2018 Date of Test Date ......................... : Jun. 13, 2018 –Jul. 10, 2018 Data of Issue ................................ : Jul. 10, 2018 Result ........................................... : Pass Shenzhen CTL Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTL Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTL Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context.

V1.0 Page 2 of 24 Report No.: CTL1803122091-WF TEST REPORT Jul. 10, 2018 Test Report No. : CTL1803122091-WF Date of issue Equipment under Test : 433 MHz Transceiver Model /Type : KTX433 Listed Models : KTX433-USB/UART Applicant : CM GLOBAL Address : 1201 N. 4TH STREET, WATERTOWN, WI 53098, USA Manufacturer : KINGLORD ELECTRONICS (HK) LTD. : FLAT 8, 14/F., WAH YIU INDUSTRIAL CENTRE, 30-32 AU Address PUI WAN STREET, FO TAN, NT., HONG KONG Test result Pass * * In the configuration tested, the EUT complied with the standards specified page 5. The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory.

V1.0 Page 3 of 24 Report No.: CTL1803122091-WF ** Modified History ** Version Description Issued Data Report No. Remark Version 1.0 Initial Test Report Release 2018-07-10 CTL1803122091-WF Tracy Qi

V1.0 Page 4 of 24 Report No.: CTL1803122091-WF Table of Contents Page 1. SUMMARY............................................................................................................................................................ 5 1.1. TEST STANDARDS.......................................................................................................................................................... 5 1.2. TEST DESCRIPTION ........................................................................................................................................................ 5 1.3. TEST FACILITY .............................................................................................................................................................. 6 1.4. STATEMENT OF THE MEASUREMENT UNCERTAINTY ............................................................................................................... 6 2. GENERAL INFORMATION....................................................................................................................................... 7 2.1. ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 7 2.2. GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 7 2.3. DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 7 2.4. EQUIPMENTS USED DURING THE TEST .............................................................................................................................. 7 2.5. RELATED SUBMITTAL(S) / GRANT (S) ................................................................................................................................ 8 2.6. MODIFICATIONS ........................................................................................................................................................... 8 3. TEST CONDITIONS AND RESULTS ........................................................................................................................... 9 3.1. CONDUCTED EMISSION (AC MAIN) ................................................................................................................................. 9 3.2. RADIATED EMISSION ................................................................................................................................................... 12 3.3. 20DB BANDWIDTH ..................................................................................................................................................... 17 3.4. DEACTIVATION TIME ................................................................................................................................................... 18 3.5. ANTENNA REQUIREMENT ............................................................................................................................................. 19 4. TEST SETUP PHOTOS OF THE EUT ........................................................................................................................ 20 5. EXTERNAL AND INTERNAL PHOTOS OF THE EUT .................................................................................................. 21

V1.0 Page 5 of 24 Report No.: CTL1803122091-WF 1. SUMMARY 1.1. Test Standards The tests were performed according to following standards: FCC Rules Part 15.231: Periodic operation in the band 40.66-40.70 MHz and above 70 MHz. ANSI C63.10:2013 : American National Standard for Testing Unlicensed Wireless Devices ANSI C63.4: 2014: –American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40GHz Range of 9 kHz to 40GHz 1.2. Test Description FCC and IC Requirements FCC Part 15.207 Conducted Emission PASS FCC Part 15.231(a)(2) Automatically Deactivate PASS FCC Part 15.231(b) Electric Field Strength of Fundamental Emission PASS FCC Part 15.205 &15.209& 15.231(b) Electric Field Strength of Spurious Emission PASS FCC Part 15.231(c) -20dB bandwidth PASS Remark: The measurement uncertainty is not included in the test result.

V1.0 Page 6 of 24 Report No.: CTL1803122091-WF 1.3. Test Facility 1.3.1 Address of the test laboratory Shenzhen CTL Testing Technology Co., Ltd. Floor 1-A, Baisha Technology Park, No. 3011, Shahexi Road, Nanshan, Shenzhen 518055 China There is one 3m semi-anechoic chamber and two line conducted labs for final test. The Test Sites meet the requirements in documents ANSI C63.4 and CISPR 32/EN 55032 requirements. 1.3.2 Laboratory accreditation The test facility is recognized, certified, or accredited by the following organizations: IC Registration No.: 9618B The 3m alternate test site of Shenzhen CTL Testing Technology Co., Ltd. EMC Laboratory has been registered by Certification and Engineer Bureau of Industry Canada for the performance of with Registration No.: 9618B on November 13, 2013. FCC-Registration No.: 399832 Shenzhen CTL Testing Technology Co., Ltd. EMC Laboratory has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. Registration 399832, December 08, 2017. 1.4. Statement of the measurement uncertainty The data and results referenced in this document are true and accurate. The reader is cautioned that there may be errors within the calibration limits of the equipment and facilities. The measurement uncertainty was calculated for all measurements listed in this test report acc. to CISPR 16 - 4 “Specification for radio disturbance and immunity measuring apparatus and methods – Part 4: Uncertainty in EMC Measurements“ and is documented in the Shenzhen CTL Testing Technology Co., Ltd. quality system acc. to DIN EN ISO/IEC 17025. Furthermore, component and process variability of devices similar to that tested may result in additional deviation. The manufacturer has the sole responsibility of continued compliance of the device. Hereafter the best measurement capability for CTL laboratory is reported: Measurement Test Notes Uncertainty Transmitter power conducted ±0.57 dB (1) Transmitter power Radiated ±2.20 dB (1) Conducted spurious emission 9KHz-40 GHz ±2.20 dB (1) Occupied Bandwidth ±0.01ppm (1) Radiated Emission 30~1000MHz ±4.10dB (1) Radiated Emission Above 1GHz ±4.32dB (1) Conducted Disturbance0.15~30MHz ±3.20dB (1) (1) This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of k=2.

V1.0 Page 7 of 24 Report No.: CTL1803122091-WF 2. GENERAL INFORMATION 2.1. Environmental conditions During the measurement the environmental conditions were within the listed ranges: Normal Temperature: 25°C Relative Humidity: 55 % Air Pressure: 101 kPa 2.2. General Description of EUT Product Name: 433 MHz Transceiver Model/Type reference: KTX433 Power supply: USB DC 5V Modulation: GFSK Operation frequency: 432.700MHz~434.900 MHz Channel number: 8 Antenna type: External antenna Antenna gain: 2dBi Note: For more details, please refer to the user’s manual of the EUT. 2.3. Description of Test Modes and Test Frequency The Applicant provides communication tools software to control the EUT for staying in continuous transmitting and receiving mode for testing. Operation Frequency： Channel Frequency(MHz) Channel Frequency(MHz) 1 432.700 5 434.000 2 433.100 6 434.300 3 433.500 7 434.600 4 433.600 8 434.900 Note1: In section 15.31(m), regards to the operating frequency range less than 10MHz, one near top and one near bottom point in the frequency range of operation should selected to measure. Note2: The line display in grey was the channel selected for test. 2.4. Equipments Used during the Test Calibration Calibration Test Equipment Manufacturer Model No. Serial No. Date Due Date LISN R&S ENV216 3560.6550.12 2018/06/02 2019/06/01 LISN R&S ESH2-Z5 860014/010 2018/06/02 2019/06/01 Sunol Sciences Bilog Antenna JB1 A061713 2018/06/02 2019/06/01 Corp. EMI Test Receiver R&S ESCI 103710 2018/06/02 2019/06/01 Spectrum Analyzer Agilent N9020 US46220290 2018/01/17 2019/01/16 Controller EM Controller EM Electronics N/A 2018/05/21 2019/05/20 1000

V1.0 Page 8 of 24 Report No.: CTL1803122091-WF Sunol Sciences Horn Antenna DRH-118 A062013 2018/05/19 2019/05/18 Corp. Active Loop SCHWARZBE FMZB1519 1519-037 2018/05/19 2019/05/18 Antenna CK Amplifier Agilent 8449B 3008A02306 2018/05/19 2019/05/18 Amplifier Agilent 8447D 2944A10176 2018/05/19 2019/05/18 Temperature/Humi Gangxing CTH-608 02 2018/05/20 2019/05/19 dity Meter 9SH10-2700/X High-Pass Filter K&L N/A 2018/05/20 2019/05/19 12750-O/O 41H10-1375/U High-Pass Filter K&L N/A 2018/05/20 2019/05/19 12750-O/O HUBER+SUHN SUCOFLEX Coaxial Cables 10m 2018/06/02 2019/06/01 ER 104PEA-10M HUBER+SUHN SUCOFLEX Coaxial Cables 3m 2018/06/02 2019/06/01 ER 104PEA-3M HUBER+SUHN SUCOFLEX Coaxial Cables 3m 2018/06/02 2019/06/01 ER 104PEA-3M RF Cable Megalon RF-A303 N/A 2018/06/02 2019/06/01 The calibration interval was one year 2.5. Related Submittal(s) / Grant (s) This submittal(s) (test report) is intended to comply with Section 15.231 of the FCC Part 15, Subpart C Rules. 2.6. Modifications No modifications were implemented to meet testing criteria.

V1.0 Page 9 of 24 Report No.: CTL1803122091-WF 3. TEST CONDITIONS AND RESULTS 3.1. Conducted Emission (AC Main) LIMIT FCC CFR Title 47 Part 15 Subpart C Section 15.207 Limit (dBuV) Frequency range (MHz) Quasi-peak Average 0.15-0.5 66 to 56* 56 to 46* 0.5-5 56 46 5-30 60 50 * Decreases with the logarithm of the frequency. TEST CONFIGURATION TEST PROCEDURE 1. The equipment was set up as per the test configuration to simulate typical actual usage per the user’s manual. The EUT is a flood stand system; a wooden table with a height of 0.1 meters is used and is placed on the ground plane as per ANSI C63.10-2013. 2. Support equipment, if needed, was placed as per ANSI C63.10-2013 3. All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10-2013 4. If a EUT received DC power from the USB Port of Notebook PC, the PC’s adapter received AC120V/60Hz power through a Line Impedance Stabilization Network (LISN) which supplied power source and was grounded to the ground plane. 5. All support equipments received AC power from a second LISN, if any. 6. The EUT test program was started. Emissions were measured on each current carrying line of the EUT using a spectrum Analyzer / Receiver connected to the LISN powering the EUT. The LISN has two monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side). Two scans were taken: one with Line 1 connected to Analyzer / Receiver and Line 2 connected to a 50 ohm load; the second scan had Line 1 connected to a 50 ohm load and Line 2 connected to the Analyzer / Receiver. 7. Analyzer / Receiver scanned from 150 KHz to 30MHz for emissions in each of the test modes. 8. During the above scans, the emissions were maximized by cable manipulation.

V1.0 Page 10 of 24 Report No.: CTL1803122091-WF TEST RESULTS Remark: Both the top and bottom frequency was tested, and recorded the worst at bottom frequency as below:

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V1.0 Page 12 of 24 Report No.: CTL1803122091-WF 3.2. Radiated Emission Limit For intentional device, according to 15.209(a) the general requirement of field strength of radiated emission from intentional radiators at a distance of 3 meters shall not exceed the following table. Frequency (MHz) Distance (Meters) Radiated (dBμV/m) Radiated (μV/m) 0.009-0.49 3 20log(2400/F(KHz))+40log(300/3) 2400/F(KHz) 0.49-1.705 3 20log(24000/F(KHz))+ 40log(30/3) 24000/F(KHz) 1.705-30 3 20log(30)+ 40log(30/3) 30 30-88 3 40.0 100 88-216 3 43.5 150 216-960 3 46.0 200 Above 960 3 54.0 500 In addition to the provisions of 15.231(b) and RSS 210-A1.1.2, the field strength of emissions from intentional radiators operated under this section shall not exceed the following: [Where F is the frequency in MHz, the formulas for calculating the maximum permitted fundamental field strengths are as follows: for the band 260-470 MHz, μV/m at 3 meters =41.6667(F) - 7083.3333. The maximum permitted unwanted emission level is 20 dB below the maximum permitted fundamental level.] TEST CONFIGURATION (A) Radiated Emission Test Set-Up, Frequency Below 30MHz (B) Radiated Emission Test Set-Up, Frequency below 1000MHz

V1.0 Page 13 of 24 Report No.: CTL1803122091-WF (C) Radiated Emission Test Set-Up, Frequency above 1000MHz Test Procedure 1. Below 1GHz measurement the EUT is placed on a turntable which is 0.8m above ground plane, and above 1GHz measurement EUT was placed on a low permittivity and low loss tangent turn table which is 1.5m above ground plane. 2. Maximum procedure was performed by raising the receiving antenna from 1m to 4m and rotating the turn table from 0℃ to 360℃ to acquire the highest emissions from EUT 3. And also, each emission was to be maximized by changing the polarization of receiving antenna both horizontal and vertical. 4. Repeat above procedures until all frequency measurements have been completed.

V1.0 Page 14 of 24 Report No.: CTL1803122091-WF TEST RESULTS The emissions from 30MHz to 5GHz are measured peak and average level, below 1 GHz measured QP level, detailed test data please see below. Besides, we tested 3 directions and recorded the worst data. Test Frequency: 432.700MHz Emission Frequency Reading Limit Margin Direction Detector Styles (MHz) (dBuV/m) (dBuV/m) (dB) (H/V) Fundamental 432.70 83.60 100.78 17.18 PK H Spurious 239.52 32.24 80.78 48.54 PK H Harmonics 865.40 41.04 80.78 39.74 PK H Harmonics 1298.10 43.71 80.78 37.07 PK H -- -- -- -- -- -- -- Fundamental 432.70 81.19 100.78 19.59 PK V Spurious 530.52 28.85 80.78 51.93 PK V Harmonics 865.40 39.13 80.78 41.65 PK V Harmonics 1298.10 42.06 80.78 38.72 PK V -- -- -- -- -- -- -- PK AV Emission Frequency AV Factor Limit Margin Direction Level Level Styles (MHz) (dB/m) (dBuV/m) (dB) (H/V) (dBuV/m) (dBuV/m) Fundamental 432.70 83.60 -8.18 75.42 80.78 5.36 H Spurious 239.52 32.24 -8.18 24.06 60.78 36.72 H Harmonics 865.40 41.04 -8.18 32.86 60.78 27.92 H Harmonics 1298.10 43.71 -8.18 35.53 60.78 25.25 H -- -- -- -- -- -- -- -- Fundamental 432.70 81.19 -8.18 73.01 80.78 7.77 V Spurious 530.52 28.85 -8.18 20.67 60.78 40.11 V Harmonics 865.40 39.13 -8.18 30.95 60.78 29.83 V Harmonics 1298.10 42.06 -8.18 33.88 60.78 26.90 V -- -- -- -- -- -- -- -- Test Frequency: 434.90MHz Emission Frequency Reading Limit Margin Direction Detector Styles (MHz) (dBuV/m) (dBuV/m) (dB) (H/V) Fundamental 434.90 82.17 100.86 18.69 PK H Spurious 385.02 32.60 80.86 48.26 PK H Harmonics 869.80 47.21 80.86 33.65 PK H Harmonics 1304.70 44.05 80.86 36.81 PK H -- -- -- -- -- -- -- Fundamental 434.90 81.01 100.86 19.85 PK V Spurious 385.02 25.70 80.86 55.16 PK V Harmonics 869.80 44.82 80.86 36.04 PK V Harmonics 1304.70 43.55 80.86 37.31 PK V -- -- -- -- -- -- --

V1.0 Page 15 of 24 Report No.: CTL1803122091-WF PK AV Emission Frequency AV Factor Limit Margin Direction Level Level Styles (MHz) (dB/m) (dBuV/m) (dB) (H/V) (dBuV/m) (dBuV/m) Fundamental 434.90 82.17 -8.18 73.99 80.86 6.87 H Spurious 385.02 32.60 -8.18 24.42 60.86 36.44 H Harmonics 869.80 47.21 -8.18 39.03 60.86 21.83 H Harmonics 1304.70 44.05 -8.18 35.87 60.86 24.99 H -- -- -- -- -- -- -- -- Fundamental 434.90 81.01 -8.18 72.83 80.86 8.03 V Spurious 385.02 25.70 -8.18 17.52 60.86 43.34 V Harmonics 869.80 44.82 -8.18 36.64 60.86 24.22 V Harmonics 1304.70 43.55 -8.18 35.37 60.86 25.49 V -- -- -- -- -- -- -- -- Note: 1. AV Level (dBuV/m)= PK Level (dBuV/m)+ AV Factor(dB) 2. In a transmit cycle 203.0ms period found 13.0ms burst 6pcs, the Duty Cycle can calculate as below: Duty Cycle= (13.0 *3)/100.0=0.39 (Note: According to C63.10, if the transmit cycle period longer than 100ms, then 100ms is used calculation.) AV Factor=20*log(Duty Cycle)=20*log(0.39)=-8.18 Duty cycle plots (Transmit cycle 203.0ms) (Total Bursts in a transmit cycle 6pcs)

V1.0 Page 16 of 24 Report No.: CTL1803122091-WF (13.00ms per burst)

V1.0 Page 17 of 24 Report No.: CTL1803122091-WF 3.3. 20dB Bandwidth Limit According to 47 CFR 15.231(c) The bandwidth of the emission shall be no wider than 0.25% of the centre frequency for devices operating above 70MHz and below 900MHz. Bandwidth is determined at the points 20dB down from the modulated carrier. Test Configuration Spectrum EUT Analyzer Test Procedure The 20dB bandwidth and 99% bandwidth is measured with a spectrum analyzer connected via a receive antenna placed near the EUT while the EUT is operating in transmission mode. The 20dB bandwidth is defined as the total spectrum the power of which is higher than peak power minus 20dB. The occupied bandwidth (OBW), that is the frequency bandwidth such that, below its lower and above its upper frequency limits, the mean powers radiated are each equal to 0.5 percent of the total mean power radiated by a given emission. Test Results Channel 20dB 99% OBW Limit Modulation Frequency bandwidth Result (KHz) (KHz) (MHz) (KHz) 432.70 213.90 225.20 0.25%*432.70=1081.75 Pass GFSK 434.90 213.78 225.50 0.25%*434.90=1087.25 Pass Test plot as follows: GFSK Modulation

V1.0 Page 18 of 24 Report No.: CTL1803122091-WF 3.4. Deactivation Time Limit According to FCC §15.231(a)(2), A transmitter activated automatically shall cease transmission within 5 seconds after activation. Test Configuration Spectrum EUT Analyzer Test Procedure 1. The EUT was placed on a wooded table which is 0.8m height and close to receiver antenna of spectrum analyzer. 2. The spectrum analyzer resolution bandwidth was set to 3 MHz and video bandwidth was set to 3 MHz to encompass all significant spectral components during the test. The spectrum analyzer was operated in linear scale and zero span mode after tuning to the transmitter carrier frequency. TEST RESULTS Note: The transmitter was automatically activated, and the carrier frequency 432.70MHz: Frequency One transmission time Limit(S) Result (MHz) (S) 432.70 0.520 5 Pass

V1.0 Page 19 of 24 Report No.: CTL1803122091-WF 3.5. Antenna Requirement Standard Applicable According to FCC Part 15C 15.203 a) An intentional radiator shall be de-signed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. b) The manufacturer may design the unit so that a broken antenna can be replaced by the user, but the use of a standard antenna jack or electrical connector is prohibited. Refer to statement below for compliance. The manufacturer may design the unit so that the user can replace a broken antenna, but the use of a standard antenna jack or electrical connector is prohibited. Further, this requirement does not apply to intentional radiators that must be professionally installed. Antenna Connected Construction The antenna used in this product is an internal Antenna, The directional gains of antenna used for transmitting is 2dBi. Antenna

V1.0 Page 20 of 24 Report No.: CTL1803122091-WF 4. Test Setup Photos of the EUT

V1.0 Page 21 of 24 Report No.: CTL1803122091-WF 5. External and Internal Photos of the EUT External Photos of EUT Antenna

V1.0 Page 22 of 24 Report No.: CTL1803122091-WF

V1.0 Page 23 of 24 Report No.: CTL1803122091-WF Internal Photos of EUT

V1.0 Page 24 of 24 Report No.: CTL1803122091-WF ********************** End of Report **********************


Document Created: 2018-07-10 18:00:51
Document Modified: 2018-07-10 18:00:51
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