Test Report

FCC ID: PRDRX0H

Test Report

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FCCID_3236900

TEST REPORT Report No.: 16080907HKG-001 Acrox Technologies Co., Ltd. Application For Certification (Original Grant) (FCC ID: PRDRX0H) Transceiver Prepared and Checked by: Approved by: Digitally signed by Koo Wai Ip Location: Intertek Testing Services Signed On File Hong Kong Ltd. Lok Chi Hang, Wil Koo Wai Ip Assistant Engineer Assistant Supervisor Date: December 13, 2016 - Intertek's standard Terms and Conditions can be obtained at our website http://www.intertek.com/terms/. - The test report only allows to be revised within the retention period unless further standard or the requirement was noticed. - This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification program. - © 2016 Intertek Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2785 5487 Website: www.hk.intertek-etlsemko.com

INTERTEK TESTING SERVICES GENERAL INFORMATION Grantee: Acrox Technologies Co., Ltd. Grantee Address: 4F., No. 89, Minshan St., Neihu Dist., Taipei City, Taiwan 114. Contact Person: Gavin Hsieh Tel: +886 2 2796 5888 Fax: +886 2 2793 8999 e-mail: N/A Manufacturer: N/A Manufacturer Address: N/a Brand Name: radioshack / ACROX Model: 2604623 / MRS Description of EUT: Receiver Serial Number: N/A FCC ID: PRDRX0H Date of Sample Submitted: August 16, 2016 Date of Test: August 16, 2016 to December 12, 2016 Report No.: 16080907HKG-001 Report Date: December 13, 2016 Environmental Conditions: Temperature: +10 to 40°C Humidity: 10 to 90% Report No.: 16080907HKG-001 i FCC ID: PRDRX0H

INTERTEK TESTING SERVICES SUMMARY OF TEST RESULT TEST SPECIFICATION REFERENCE RESULTS Transmitter Power Line Conducted Emissions 15.207 Pass Radiated Emission 15.249, 15.209 Pass Radiated Emission on the Bandedge Radiated Emission in Restricted Bands 15.205 Pass The equipment under test is found to be complying with the following standards: FCC Part 15, October 1, 2015 Edition Note: 1. The EUT uses a permanently attached antenna which, in accordance to section 15.203, is considered sufficient to comply with the pervisions of this section. 2. Pursuant to FCC part 15 Section 15.215(c), the 20 dB bandwidth of the emission was contained within the frequency band designated (mentioned as above) which the EUT operated. The effects, if any, from frequency sweeping, frequency hopping, other modulation techniques and frequency stability over excepted variations in temperature and supply voltage were considered. Report No.: 16080907HKG-001 ii FCC ID: PRDRX0H

INTERTEK TESTING SERVICES Table of Contents 1.0 General Description ......................................................................................... 1 1.1 Product Description ........................................................................................ 1 1.2 Related Submittal(s) Grants............................................................................ 1 1.3 Test Methodology ........................................................................................... 1 1.4 Test Facility .................................................................................................... 1 2.0 System Test Configuration.............................................................................. 2 2.1 Justification ..................................................................................................... 2 2.2 EUT Exercising Software ................................................................................ 2 2.3 Special Accessories ....................................................................................... 2 2.4 Measurement Uncertainty............................................................................... 2 2.5 Support Equipment List and Description ......................................................... 2 3.0 Emission Results ............................................................................................. 3 3.1 Field Strength Calculation ............................................................................... 3 3.2 Radiated Emission Configuration Photograph ................................................ 4 3.3 Radiated Emission Data ................................................................................. 4 3.4 Conducted Emission Configuration Photograph ............................................. 4 3.5 Conducted Emission Data .............................................................................. 4 4.0 Equipment Photographs................................................................................ 11 5.0 Product Labelling ........................................................................................... 11 6.0 Technical Specifications ............................................................................... 11 7.0 Instruction Manual ......................................................................................... 11 8.0 Miscellaneous Information ............................................................................ 12 8.1 Radiated Emission on the Bandedge............................................................ 12 8.2 Discussion of Pulse Desensitization ............................................................. 13 8.3 Calculation of Average Factor....................................................................... 13 8.4 Emissions Test Procedures .......................................................................... 15 9.0 Equipment List ............................................................................................... 19 Report No.: 16080907HKG-001 iii FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 1.0 General Description 1.1 Product Description The Equipment Under Test (EUT) is a Transceiver (USB Dongle) for presenter operating from 2404-2478MHz with 1MHz channel spacing. The EUT is powered by 5VDC by USB port. After plugged the EUT to computer and paired with Presenter, the computer can be controlled for “Previous Page”, “Next Page”, “Scrolls Up/Down” by Presenter through EUT. The Model: MRS is the same as the Model: 2604623 in hardware aspect. The difference in model number and brand name serves as marketing strategy. Antenna Type: Internal, Integral For electronic filing, the brief circuit description is saved with filename: descri.pdf. 1.2 Related Submittal(s) Grants This is a single application for certification of a transceiver. The Certification procedure of transceiver for this transceiver (with FCC ID: PRDPR02) is being processed as the same time of this application. 1.3 Test Methodology Both AC mains line-conducted and radiated emission measurements were performed according to the procedures in ANSI C63.10 (2013). All radiated measurements were performed in an 3m Chamber. Preliminary scans were performed in the 3m Chamber only to determine worst case modes. All radiated tests were performed at an antenna to EUT distance of 3 meters, unless stated otherwise in the “Justification Section” of this Application. 1.4 Test Facility The 3m Chamber and conducted measurement facility used to collect the radiated data is located at Workshop No. 3, G/F., World-Wide Industrial Centre, 43-47 Shan Mei Street, Fo Tan, Sha Tin, N.T., Hong Kong. This test facility and site measurement data have been placed on file with the FCC. Report No.: 16080907HKG-001 1 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 2.0 System Test Configuration 2.1 Justification The system was configured for testing in a typical fashion (as a customer would normally use it), and in the confines as outlined in ANSI C63.10 (2013). The device was powered by 5VDC by USB port. For maximizing emissions, the EUT was rotated through 360°, the antenna height was varied from 1 meter to 4 meters above the ground plane, and the antenna polarization was changed. This step by step procedure for maximizing emissions led to the data reported in Exhibit 3.0. The rear of unit shall be flushed with the rear of the table. The equipment under test (EUT) was configured for testing in a typical fashion (as a customer would normally use it). The EUT was mounted to a plastic stand if necessary and placed on the wooden turntable, which enabled the engineer to maximize emissions through its placement in the three orthogonal axes. 2.2 EUT Exercising Software There was no special software to exercise the device. Once the unit is powered up, it transmits the RF signal continuously. 2.3 Special Accessories There are no special accessories necessary for compliance of this product. 2.4 Measurement Uncertainty When determining of the test conclusion, the Measurement Uncertainty of test has been considered. Uncertainty and Compliance - Unless the standard specifically states that measured values are to be extended by the measurement uncertainty in determining compliance, all compliance determinations are based on the actual measured value. 2.5 Support Equipment List and Description HP Notebook – ProBook 430 (Provided by Intertek) Report No.: 16080907HKG-001 2 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 3.0 Emission Results Data is included of the worst case configuration (the configuration which resulted in the highest emission levels). A sample calculation, configuration photographs and data tables of the emissions are included. 3.1 Field Strength Calculation The field strength is calculated by adding the Antenna Factor and Cable Factor, and subtracting the Amplifier Gain (if any), Average Factor (optional) from the measured reading. The basic equation with a sample calculation is as follows: FS = RA + AF + CF - AG - AV where FS = Field Strength in dBµV/m RA = Receiver Amplitude (including preamplifier) in dBµV CF = Cable Attenuation Factor in dB AF = Antenna Factor in dB AG = Amplifier Gain in dB AV = Average Factor in dB In the following table(s), the reading shown on the data table reflects the preamplifier gain. An example for the calculations in the following table is as follows: FS = RR + LF where FS = Field Strength in dBµV/m RR = RA - AG - AV in dBµV LF = CF + AF in dB Assume a receiver reading of 52.0 dBµV is obtained. The antenna factor of 7.4 dB and cable factor of 1.6 dB are added. The amplifier gain of 29 dB and average factor of 5 dB are subtracted, giving a field strength of 27 dBµV/m. This value in dBµV/m was converted to its corresponding level in µV/m. RA = 52.0 dBµV/m AF = 7.4 dB RR = 18.0 dBµV CF = 1.6 dB LF = 9.0 dB AG = 29.0 dB AV = 5.0 dB FS = RR + LF FS = 18 + 9 = 27 dBµV/m Level in µV/m = Common Antilogarithm [(27 dBµV/m)/20] = 22.4 µV/m Report No.: 16080907HKG-001 3 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 3.2 Radiated Emission Configuration Photograph The worst case in radiated emission was found at 167.678 MHz For electronic filing, the worst case radiated emission configuration photographs are saved with filename: radiated photos.pdf. 3.3 Radiated Emission Data The data on the following page lists the significant emission frequencies, the limit and the margin of compliance. Numbers with a minus sign are below the limit. Judgment: Passed by 2.0 dB 3.4 Conducted Emission Configuration Photograph The worst case in line-conducted emission was found at 0.150 MHz For electronic filing, the worst case line-conducted configuration photographs are saved with filename: conducted photo.pdf. 3.5 Conducted Emission Data For electronic filing, the graph and data table of conducted emission is saved with filename: conducted.pdf. Judgment: Pass by 14.20 dB Report No.: 16080907HKG-001 4 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES Applicant: Acrox Technologies Co., Ltd. Date of Test: December 12, 2016 Model: 2604623 Worst-Case Operating Mode: Data Transfer RBW 9 kHz MT 1 s Att 10 dB AUTO PREAMP OFF dBµV 100 1 MHz 10 MHz 90 SGL 1 PK CLRWR 80 2 AV CLRWR TDS 70 CF15MQP 60 CF15MAV 50 6DB 40 AC 30 20 10 EDIT PEAK LIST (Final Measurement Results) Trace1: CF15MQP Trace2: CF15MAV Trace3: --- TRACE FREQUENCY LEVEL dBµV DELTA LIMIT dB 1 Quasi Peak 150 kHz 51.79 L1 -14.20 2 CISPR Average150 kHz 35.83 N -20.16 1 Quasi Peak 226.5 kHz 41.93 L1 -20.64 2 CISPR Average226.5 kHz 28.78 L1 -23.79 1 Quasi Peak 357 kHz 36.01 N -22.78 2 CISPR Average379.5 kHz 26.78 L1 -21.50 1 Quasi Peak 514.5 kHz 40.41 L1 -15.59 2 CISPR Average541.5 kHz 28.97 N -17.02 1 Quasi Peak 568.5 kHz 32.50 N -23.49 2 CISPR Average573 kHz 20.28 N -25.71 1 Quasi Peak 1.0275 MHz 27.09 L1 -28.90 1 Quasi Peak 2.949 MHz 28.82 N -27.17 1 Quasi Peak 3.03 MHz 27.35 N -28.64 Note: Measurement Uncertainty is ±4.2dB at a level of confidence of 95%. Report No.: 16080907HKG-001 5 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES Applicant: Acrox Technologies Co., Ltd. Date of Test: December 12, 2016 Model: 2604623 Worst-Case Operating Mode: Transmitting Table 1 Radiated Emissions Pursuant to FCC Part 15 Section 15.249 Requirement Lowest Channel Pre-Amp Antenna Net at Average Calculated Average Limit Polari- Frequency Reading Gain Factor 3m - Peak Factor at 3m at 3m Margin zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dB) (dBμV/m) (dBμV/m) (dB) V 2404.000 101.0 33 29.4 97.4 44.4 53.0 94.0 -41.0 V 2400.000 52.9 33 29.4 49.3 44.4 4.9 54.0 -49.1 V 4808.000 68.6 33 34.9 70.5 44.4 26.1 54.0 -27.9 V 7212.000 54.7 33 37.9 59.6 44.4 15.2 54.0 -38.8 V 9616.000 50.3 33 40.4 57.7 44.4 13.3 54.0 -40.7 V 12020.000 51.3 33 40.5 58.8 44.4 14.4 54.0 -39.6 V 14424.000 49.6 33 40.0 56.6 44.4 12.2 54.0 -41.8 Pre-Amp Antenna Net at Peak Limit Polari- Frequency Reading Gain Factor 3m - Peak at 3m Margin zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB) V 2404.000 101.0 33 29.4 97.4 114.0 -16.6 V 2400.000 52.9 33 29.4 49.3 74.0 -24.7 V 4808.000 68.6 33 34.9 70.5 74.0 -3.5 V 7212.000 54.7 33 37.9 59.6 74.0 -14.4 V 9616.000 50.3 33 40.4 57.7 74.0 -16.3 V 12020.000 51.3 33 40.5 58.8 74.0 -15.2 V 14424.000 49.6 33 40.0 56.6 74.0 -17.4 NOTES: 1. Peak Detector Data unless otherwise stated. 2. All measurements were made at 3 meters. Harmonic emissions not detected at the 3-meter distances were measured at 0.3-meter and an inverse proportional extrapolation was performed to compare the signal level to the 3-meter limit. No other harmonic emissions than those reported were detected at a test distance of 0.3-meter. 3. Negative sign in the column shows value below limit. 4. Horn antenna is used for the emission over 1000MHz. 5. Emission (the row indicated by bold italic) within the restricted band meets the requirement of FCC Part 15 Section 15.205. 6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%. Report No.: 16080907HKG-001 6 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES Applicant: Acrox Technologies Co., Ltd. Date of Test: December 12, 2016 Model: 2604623 Worst-Case Operating Mode: Transmitting Table 2 Radiated Emissions Pursuant to FCC Part 15 Section 15.249 Requirement Middle Channel Pre-Amp Antenna Net at Average Calculated Average Limit Polari- Frequency Reading Gain Factor 3m - Peak Factor at 3m at 3m Margin zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dB) (dBμV/m) (dBμV/m) (dB) V 2441.000 101.4 33 29.4 97.8 44.4 53.4 94.0 -40.6 V 4882.000 68.6 33 34.9 70.5 44.4 26.1 54.0 -27.9 V 7323.000 54.7 33 37.9 59.6 44.4 15.2 54.0 -38.8 V 9764.000 50.3 33 40.4 57.7 44.4 13.3 54.0 -40.7 V 12205.000 51.3 33 40.5 58.8 44.4 14.4 54.0 -39.6 V 14646.000 51.5 33 38.4 56.9 44.4 12.5 54.0 -41.5 Pre-Amp Antenna Net at Peak Limit Polari- Frequency Reading Gain Factor 3m - Peak at 3m Margin zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB) V 2441.000 101.4 33 29.4 97.8 114.0 -16.2 V 4882.000 68.6 33 34.9 70.5 74.0 -3.5 V 7323.000 54.7 33 37.9 59.6 74.0 -14.4 V 9764.000 50.3 33 40.4 57.7 74.0 -16.3 V 12205.000 51.3 33 40.5 58.8 74.0 -15.2 V 14646.000 51.5 33 38.4 56.9 74.0 -17.1 NOTES: 1. Peak Detector Data unless otherwise stated. 2. All measurements were made at 3 meters. Harmonic emissions not detected at the 3-meter distances were measured at 0.3-meter and an inverse proportional extrapolation was performed to compare the signal level to the 3-meter limit. No other harmonic emissions than those reported were detected at a test distance of 0.3-meter. 3. Negative sign in the column shows value below limit. 4. Horn antenna is used for the emission over 1000MHz. 5. Emission (the row indicated by bold italic) within the restricted band meets the requirement of FCC Part 15 Section 15.205. 6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%. Report No.: 16080907HKG-001 7 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES Applicant: Acrox Technologies Co., Ltd. Date of Test: December 12, 2016 Model: 2604623 Worst-Case Operating Mode: Transmitting Table 3 Radiated Emissions Pursuant to FCC Part 15 Section 15.249 Requirement Highest Channel Pre-Amp Antenna Net at Average Calculated Average Limit Polari- Frequency Reading Gain Factor 3m - Peak Factor at 3m at 3m Margin zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dB) (dBμV/m) (dBμV/m) (dB) V 2478.000 101.7 33 29.4 98.1 44.4 53.7 94.0 -40.3 V 2483.500 53.4 33 29.4 49.8 44.4 5.4 54.0 -48.6 V 4956.000 69.0 33 34.9 70.9 44.4 26.5 54.0 -27.5 V 7434.000 55.0 33 37.9 59.9 44.4 15.5 54.0 -38.5 V 9912.000 50.2 33 40.4 57.6 44.4 13.2 54.0 -40.8 V 12390.000 51.2 33 40.5 58.7 44.4 14.3 54.0 -39.7 V 14868.000 51.2 33 38.4 56.6 44.4 12.2 54.0 -41.8 Pre-Amp Antenna Net at Peak Limit Polari- Frequency Reading Gain Factor 3m - Peak at 3m Margin zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB) V 2478.000 101.7 33 29.4 98.1 114.0 -15.9 V 2483.500 53.4 33 29.4 49.8 74.0 -24.2 V 4956.000 69.0 33 34.9 70.9 74.0 -3.1 V 7434.000 55.0 33 37.9 59.9 74.0 -14.1 V 9912.000 50.2 33 40.4 57.6 74.0 -16.4 V 12390.000 51.2 33 40.5 58.7 74.0 -15.3 V 14868.000 51.2 33 38.4 56.6 74.0 -17.4 NOTES: 1. Peak Detector Data unless otherwise stated. 2. All measurements were made at 3 meters. Harmonic emissions not detected at the 3-meter distances were measured at 0.3-meter and an inverse proportional extrapolation was performed to compare the signal level to the 3-meter limit. No other harmonic emissions than those reported were detected at a test distance of 0.3-meter. 3. Negative sign in the column shows value below limit. 4. Horn antenna is used for the emission over 1000MHz. 5. Emission (the row indicated by bold italic) within the restricted band meets the requirement of FCC Part 15 Section 15.205. 6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%. Report No.: 16080907HKG-001 8 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES Applicant: Acrox Technologies Co., Ltd. Date of Test: December 12, 2016 Model: 2604623 Worst-Case Operating Mode: Transmitting (USB) Table 4 Radiated Emissions Pursuant to FCC Part 15 Section 15.209 Requirement Pre- Antenna Net Limit Frequency Reading amp Factor at 3m at 3m Margin Polarization (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB) V 143.346 40.4 16 14.0 38.4 43.5 -5.1 V 167.678 39.5 16 18.0 41.5 43.5 -2.0 H 228.785 38.6 16 18.0 40.6 46.0 -5.4 H 240.348 39.7 16 19.0 42.7 46.0 -3.3 H 251.565 39.8 16 20.0 43.8 46.0 -2.2 H 264.456 36.9 16 21.0 41.9 46.0 -4.1 H 276.345 34.5 16 22.0 40.5 46.0 -5.5 H 300.345 36.1 16 22.0 42.1 46.0 -3.9 H 604.233 26.9 16 29.0 39.9 46.0 -6.1 NOTES: 1. Peak Detector Data unless otherwise stated. 2. All measurements were made at 3 meters. Harmonic emissions not detected at the 3-meter distances were measured at 0.3-meter and an inverse proportional extrapolation was performed to compare the signal level to the 3-meter limit. No other harmonic emissions than those reported were detected at a test distance of 0.3-meter. 3. Negative sign in the column shows value below limit. 4. Horn antenna is used for the emission over 1000MHz. 5. Emission (the row indicated by bold italic) within the restricted band meets the requirement of FCC Part 15 Section 15.205. 6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%. Report No.: 16080907HKG-001 9 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES Applicant: Acrox Technologies Co., Ltd. Date of Test: December 12, 2016 Model: 2604623 Worst-Case Operating Mode: Normal Operation Table 5 Radiated Emissions Pursuant to FCC Part 15 Section 15.209 Requirement Pre- Antenna Net Limit Frequency Reading amp Factor at 3m at 3m Margin Polarization (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB) V 43.565 30.4 16 10.0 24.4 40.0 -15.6 V 123.675 27.5 16 14.0 25.5 43.5 -18.0 V 243.776 23.6 16 20.0 27.6 46.0 -18.4 V 334.354 20.7 16 24.0 28.7 46.0 -17.3 H 645.345 16.8 16 29.0 29.8 46.0 -16.2 H 756.565 13.7 16 30.0 27.7 46.0 -18.3 NOTES: 1. Peak Detector Data unless otherwise stated. 2. All measurements were made at 3 meters. Harmonic emissions not detected at the 3-meter distances were measured at 0.3-meter and an inverse proportional extrapolation was performed to compare the signal level to the 3-meter limit. No other harmonic emissions than those reported were detected at a test distance of 0.3-meter. 3. Negative sign in the column shows value below limit. 4. Horn antenna is used for the emission over 1000MHz. 5. Emission (the row indicated by bold italic) within the restricted band meets the requirement of FCC Part 15 Section 15.205. 6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%. Report No.: 16080907HKG-001 10 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 4.0 Equipment Photographs For electronic filing, the photographs are saved with filename: external photos.pdf and internal photos.pdf. 5.0 Product Labelling For electronics filing, the FCC ID label artwork and the label location are saved with filename: label.pdf. 6.0 Technical Specifications For electronic filing, the block diagram and schematic of the tested EUT are saved with filename: block.pdf and circuit.pdf respectively. 7.0 Instruction Manual For electronic filing, a preliminary copy of the Instruction Manual is saved with filename: manual.pdf. This manual will be provided to the end-user with each unit sold/leased in the United States. Report No.: 16080907HKG-001 11 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 8.0 Miscellaneous Information The miscellaneous information includes details of the test procedure and measured bandwidth / calculation of factor such as pulse desensitization and averaging factor (calculation and timing diagram). 8.1 Radiated Emission on the Bandedge The test data of bandedge emissions were shown on the above radiated emissions table 1 and table 3 respectively. The resultant field strength meets the general radiated emission limit in Section 15.209, which does not exceed 74 dBµV/m (Peak Limit) and 54 dBµV/m (Average Limit). Emissions radiated outside of the specified frequency bands, except harmonics, are attenuated by 50dB below the level of the fundamental or to the general radiated emissions limits in Section 15.209, whichever is the lesser attenuation, which meet the requirement of part 15.249(d). Report No.: 16080907HKG-001 12 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 8.2 Discussion of Pulse Desensitization Pulse desensitivity is not applicable for this device. The effective period (Teff) is approximately 0.2 ms for a digital “1” bit which illustrated on technical specification, with a resolution bandwidth (3dB) of 1MHz, so the pulse desensitivity factor is 0dB. 8.3 Calculation of Average Factor The duty cycle is simply the on-time divided by the period: The duration of one cycle = 100ms Effective period of the cycle = 0.2*3 = 0.6ms DC = 0.6 / 100 = 0.006 Therefore, the averaging factor is found by 20log 0.006 = -44.4dB. Report No.: 16080907HKG-001 13 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES Average Factor RBW 1 MHz Delta 1 [T1 ] VBW 3 MHz 0.08 dB Ref -5 dBm * Att 10 dB SWT 10 ms 200.000000 µs Marker 1 [T1 ] -10 -18.83 dBm 0.000000 s B 11 SGL 1 PK -20 MAXH TRG -30 TDS -40 TRG -41.6 dBm PS -50 -60 3DB AC -70 -80 -90 -100 Center 2.406768 GHz 1 ms/ RBW 1 MHz VBW 3 MHz Ref -5 dBm * Att 10 dB SWT 100 ms -10 B SGL 1 PK -20 MAXH TRG -30 TDS -40 TRG -41.6 dBm PS -50 -60 3DB AC -70 -80 -90 -100 Center 2.406768 GHz 10 ms/ Report No.: 16080907HKG-001 14 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 8.4 Emissions Test Procedures The following is a description of the test procedure used by Intertek Testing Services Hong Kong Ltd. in the measurements of transmitter operating under the Part 15, Subpart C rules. The transmitting equipment under test (EUT) is placed on a wooden turntable which is four feet in diameter and approximately 0.8m in height above the ground plane for emission measurement at or below 1GHz and 1.5m in height above the ground plane for emission measurement above 1GHz. During the radiated emissions test, the turntable is rotated and any cables leaving the EUT are manipulated to find the configuration resulting in maximum emissions. The EUT is adjusted through all three orthogonal axis to obtain maximum emission levels. The antenna height and polarization are also varied during the testing to search for maximum signal levels. The height of the antenna is varied from one to four meters. Detector function for radiated emissions is in peak mode. Average readings, when required, are taken by measuring the duty cycle of the equipment under test and subtracting the corresponding amount in dB from the measured peak readings. A detailed description for the calculation of the average factor can be found in Exhibit 8.3. The frequency range scanned is from the lowest radio frequency signal generated in the device which is greater than 9 kHz to the tenth harmonic of the highest fundamental frequency or 40 GHz, whichever is lower. For line conducted emissions, the range scanned is 150 kHz to 30 MHz. Report No.: 16080907HKG-001 15 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 8.4 Emissions Test Procedures (cont’d) The EUT is warmed up for 15 minutes prior to the test. AC power to the unit is varied from 85% to 115% nominal and variation in the fundamental emission field strength is recorded. If battery powered, a new, fully charged battery is used. Conducted measurements were made as described in ANSI C63.10 (2013). The IF bandwidth used for measurement of radiated signal strength was 100 kHz or greater when frequency is below 1000 MHz. Where pulsed transmissions of short enough pulse duration warrant, a greater bandwidth is selected according to the recommendations of Hewlett Packard Application Note 150-2. A discussion of whether pulse desensitivity is applicable to this unit is included in this report (See Exhibit 8.1). Above 1000 MHz, a resolution bandwidth of 1 MHz is used. Transmitter measurements are normally conducted at a measurement distance of three meters. However, to assure low enough noise floor in the forbidden bands and above 1 GHz, signals are acquired at a distance of one meter or less. All measurements are extrapolated to three meters using inverse scaling, unless otherwise reported. Measurements taken at a closer distance are so marked. Report No.: 16080907HKG-001 16 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 8.4.1 Radiated Emission Test Setup The figure below shows the test setup, which is utilized to make these measurements. Antenna 1.0~4.0m Tower 3m Receiver Antenna E U T 0.8m Ground Plane 3m Chamber □ RF Test Receiver Test setup of radiated emissions up to 1GHz Antenna 1.0~4.0m Tower 3m Receiver E Antenna U T 1.5m Ground Plane □ RF Test Spectrum Analyzer Test setup of radiated emissions above 1GHz Report No.: 16080907HKG-001 17 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 8.4.2 Conducted Emission Test Procedures For tabletop equipment, the EUT along with its peripherals were placed on a 1.0m(W)1.5m(L) and 0.8m in height wooden table. For floor-standing equipment, the EUT and all cables were insulated, if required, from the ground plane by up to 12 mm of insulating material. The EUT was adjusted to maintain a 0.4 meter space from a vertical reference plane. The EUT was connected to power mains through a line impedance stabilization network (LISN), which provided 50 ohm coupling impedance for measuring instrument and the chassis ground was bounded to the horizontal ground plane of shielded room. The excess power cable between the EUT and the LISN was bundled. All connecting cables of EUT and peripherals were moved to find the maximum emission. 8.4.3 Conducted Emission Test Setup AC Power LISN 1 EUT Peripherals LISN 2 EMI Receiver AC Power Report No.: 16080907HKG-001 18 of 19 FCC ID: PRDRX0H

INTERTEK TESTING SERVICES 9.0 Equipment List 1) Radiated Emissions Test Equipment EMI Test Receiver Spectrum Analyzer Double Ridged Guide Antenna Registration No. EW-3095 EW-2188 EW-1133 Manufacturer R&S AGILENTTECH EMCO Model No. ESCI E4407B 3115 Calibration Date Oct. 25, 2016 Apr. 25, 2016 Nov. 05, 2015 Calibration Due Date Oct. 25, 2017 Apr. 25, 2017 May 05, 2017 Equipment Biconical Log Periodic Pyramidal Horn Antenna Antenna Antenna Registration No. EW-0571 EW-0446 EW-0905 Manufacturer EMCO EMCO EMCO Model No. 3104C 3146 3160-09 Calibration Date May 18, 2016 Jul. 15, 2016 Feb. 12, 2016 Calibration Due Date Nov. 18, 2017 Jan. 15, 2018 Aug. 12, 2017 2) Conducted Emissions Test Equipment EMI Test Receiver LISN Registration No. EW-2500 EW-2501 Manufacturer R&S R&S Model No. ESCI ENV-216 Calibration Date Jan. 28, 2016 Jan. 28, 2016 Calibration Due Date Jan. 28, 2017 Jan. 28, 2017 3) Average Factor Measurement Equipment Spectrum Analyzer Registration No. EW-2329 Manufacturer R&S Model No. FSP3 Calibration Date Aug. 26, 2016 Calibration Due Date Aug. 26, 2017 END OF TEST REPORT Report No.: 16080907HKG-001 19 of 19 FCC ID: PRDRX0H


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Document Modified: 2017-12-19 23:53:38
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