Test Report

FCC ID: INGRU-850LTH

Test Report

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FCCID_4043903

FCC Part 74 Subpart H EMI TEST REPORT of E.U.T. : UHF PLL Handheld Transmitter FCC ID. : ING RU-850LTH Model No. : RU-850TH, RU-850LTH Working Frequency : 470~608 MHz for APPLICANT : JTS Professional Co., Ltd. ADDRESS : NO. 148, 9TH INDUSTRY RD., TA-LI INDUSTRIAL PARK,TAI-LI CITY, TAIWAN, R.O.C. Test Performed by ELECTRONICS TESTING CENTER (ETC) , TAIWAN NO. 34. LIN 5, DINGFU VIL., LINKOU DIST., NEW TAIPEI CITY, TAIWAN, 24442, R.O.C. TEL : (02)26023052 FAX : (02)26010910 http:// www.etc.org.tw ; e-mail:emc@etc.org.tw Report Number : 16-04-RBF-003-01 Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 FCC ID: INGRU-850LTH TEST REPORT CERTIFICATION Applicant : JTS Professional Co., Ltd. NO. 148, 9TH INDUSTRY RD., TA-LI INDUSTRIAL PARK, TAI-LI CITY, TAIWAN, R.O.C. Manufacturer : JTS Professional Co., Ltd. NO. 148, 9TH INDUSTRY RD., TA-LI INDUSTRIAL PARK, TAI-LI CITY, TAIWAN, R.O.C. Description of EUT : a) Type of EUT : UHF PLL Handheld Transmitter b) Trade Name : JTS c) Model No. : RU-850TH, RU-850LTH d) FCC ID : INGRU-850LTH e) Working Frequency : 470~608 MHz f) Power Supply : DC 1.5V Battery*2 Regulation Applied : FCC Rules and Regulations Part 74 Subpart H I HEREBY CERTIFY THAT; The data shown in this report were made in accordance with the procedures given in ANSI C63.10-2013 and the energy emitted by the device was founded to be within the limits applicable. I assume full responsibility for accuracy and completeness of these data. Issued Date : Feb. 26, 2018 Test Engineer : (Brian Huang, Engineer ) Approve & Authorized Signer : S. S. Liou, Section Manager EMC Dept. II of ELECTRONICS TESTING CENTER, TAIWAN Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 FCC ID: INGRU-850LTH Table of Contents Page 1. GENERAL INFORMATION ............................................................................................................................... 1 1.1 PRODUCT DESCRIPTION........................................................................................................................................... 1 1.2 TEST METHODOLOGY .............................................................................................................................................. 1 1.3 TEST FACILITY ........................................................................................................................................................ 1 2. REQUIREMENTS OF PROVISIONS ................................................................................................................ 2 2.1 DEFINITION ............................................................................................................................................................. 2 2.2 FREQUENCIES AVAILABLE ...................................................................................................................................... 2 2.3 REQUIREMENTS FOR RADIO EQUIPMENT ON CERTIFICATION .................................................................................. 2 2.4 LABELING REQUIREMENT........................................................................................................................................ 3 3. OUTPUT POWER MEASUREMENT ................................................................................................................ 4 3.1 PROVISION APPLICABLE .......................................................................................................................................... 4 3.2 MEASUREMENT PROCEDURE ................................................................................................................................... 4 3.3 TEST DATA.............................................................................................................................................................. 4 3.4 TEST EQUIPMENT .................................................................................................................................................... 4 4. MODULATION CHARACTERISTICS ............................................................................................................. 5 4.1 PROVISIONS APPLICABLE ........................................................................................................................................ 5 4.2 MEASUREMENT METHOD ........................................................................................................................................ 5 4.3 MEASUREMENT INSTRUMENT.................................................................................................................................. 6 4.4 MEASUREMENT RESULT .......................................................................................................................................... 6 5. OCCUPIED BANDWIDTH OF EMISSION ...................................................................................................... 8 5.1 PROVISIONS APPLICABLE ........................................................................................................................................ 8 5.2 MEASUREMENT METHOD ........................................................................................................................................ 8 5.3 OCCUPIED BANDWIDTH TEST EQUIPMENT .............................................................................................................. 8 5.4 BANDWIDTH MEASURED ......................................................................................................................................... 9 6. FIELD STRENGTH OF EMISSION ................................................................................................................. 13 6.1 PROVISIONS APPLICABLE ...................................................................................................................................... 13 6.2 MEASUREMENT PROCEDURE ................................................................................................................................. 13 6.3 MEASURING INSTRUMENT ..................................................................................................................................... 15 6.4 MEASURING DATA ................................................................................................................................................ 16 6.5 RADIATED MEASUREMENT PHOTOS ...................................................................................................................... 24 7. FREQUENCY STABILITY MEASUREMENT ............................................................................................... 25 7.1 PROVISIONS APPLICABLE ...................................................................................................................................... 25 7.2 MEASUREMENT PROCEDURE ................................................................................................................................. 25 7.3 MEASUREMENT INSTRUMENT................................................................................................................................ 26 7.4 MEASUREMENT DATA ........................................................................................................................................... 27 8 CONDUCTED EMISSION MEASUREMENT ................................................................................................. 29 8.1 STANDARD APPLICABLE........................................................................................................................................ 29 Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 1 of 29 Sheets FCC ID: INGRU-850LTH 1. GENERAL INFORMATION 1.1 Product Description a) Type of EUT : UHF PLL Handheld Transmitter b) Trade Name : JTS c) Model No. : RU-850TH, RU-850LTH d) FCC ID : INGRU-850LTH e) Working Frequency : 470~608 MHz f) Power Supply : DC 1.5V Battery*2 g) Emission Designator : 96K0F3E 2M+2DK=2x(3kHz)+2x(45kHz)x1=96kHz h) Model Difference : RU-850LTH: with LCD display RU-850TH: no LCD display 1.2 Test Methodology Both conducted and radiated testing were performed according to the procedures in ANSI C63.10-2013. Test also follow “TIA-603-D(2010)-Land Mobile FM or PM Communications Equipment Measurement and Performance Standsrds” and section 2.1046, 2.1047, 2.1049, 2.1051, 2.1053, and 2.1055 of Part 2 of CFR 47. Measueement Software Software Version Note e3 Version 6.100618b Radiated Emission Test e3 Version 6.100421 Conducted Emission Test 1.3 Test Facility Location of the Test site: No.34, Lin 5, Dingfu Vil., Linkou Dist., New Taipei City, Taiwan 24442, R.O.C. Designation Number: TW2628. Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 2 of 29 Sheets FCC ID: INGRU-850LTH 2. REQUIREMENTS OF PROVISIONS 2.1 Definition Intentional radiator: A device that intentionally generates and emits radio frequency energy by radiation or induction. 2.2 Frequencies Available According to sec. 74.802 of Part 74, the following frequencies are available for low power auxiliary station : Frequencies (MHz) 26.100-26.480 455.000-456.000 54.000-72.000 470.000-488.000 76.000-88.000 488.000-494.000 161.625-161.775 494.000-608.000 174.000-216.000 614.000-806.000 450.000-451.000 944.000-952.000 2.3 Requirements for Radio Equipment on Certification (1) RF Output Power For transmitters, the power output shall be measured at the RF output terminals. (2) Modulation Characteristics For Voice Modulated Communication Equipment, a curve or equivalent data showing the frequency response of the audio modulating circuit over a range of 100 to 5000 Hz shall be submitted. (3) Occupied Bandwidth For radiotelephone transmitter, other than single sideband or indenpent sideband transmitter, when modulateed by a 2.5kHz tone at an input level 16 dB greater than that necessary to produce 50 percent modulation. (4) Spurious Emissions at Antenna Terminals The radio frequency voltage or power generated within the equipment and appearing on a spurious frequency shall be checked at the equipment output terminal when properly loaded with a suitable artificial antenna. Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 3 of 29 Sheets FCC ID: INGRU-850LTH (5) Field Strength of Spurious Emissions Measurements shall be made to detect spurious emission that may be radiated directly from the cabinet, control circuits, power leads, or intermediate circuit elements under normal condition of installation and operation. (6) Frequencies Tolerance a) The frequency stability shall be measured with variation of ambient temperature. b) The frequency stability shall be measured with variation of primary supply voltage. 2.4 Labeling Requirement Each equipment for which a type acceptance application is filed on or after May 1,1981, shall bear an identification plate or label pursuant to § 2.925 （ Identification of equipment） and §2.926（FCC identifier）. Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 4 of 29 Sheets FCC ID: INGRU-850LTH 3. OUTPUT POWER MEASUREMENT 3.1 Provision Applicable According to §74.861(e)(1)(ii), the output power shall not exceed 250 milliwatts. 3.2 Measurement Procedure 1. Check the calibration of the measuring instrument using either an internal calibrator or a known signal from an external generator. 2. Position the EUT as shown in figure 1, and Install new batteries in the EUT. Turn on the EUT ant set it to any one convenient frequency within its operating range. 3. Apply a 2.5 kHz modulation signal to EUT. Record the readings on the instrument. 4. Repeat above procedures until all frequencies measured were complete. Figure 1: Transmit power measurement configuration. Radio EUT Communication Test Set Power Meter 3.3 Test Data Operated mode : TX Test Date : Nov. 16, 2017 Temperature : 23°C Humidity : 55 % Frequency Transmit Power Limit (MHz) (dBm) (mW) (mW) 470.000 8.70 7.413 250.0 608.000 9.00 7.943 250.0 3.4 Test Equipment Equipment Manufacturer Model No. Calibration Date Next Cal. Date POWER METER ML2487A ANRITSU 2017/05/18 2018/05/17 +SENSOR +MA2491A Communications AEROFLEX 2945B 2017/01/09 2018/01/08 Service Monitor Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 5 of 29 Sheets FCC ID: INGRU-850LTH 4. MODULATION CHARACTERISTICS 4.1 Provisions Applicable According to § 2.1047 (a), for Voice Modulated Communication Equipment, the frequency response of the audio modulating circuit over a range of 100 to 5000 Hz shall be measured. 4.2 Measurement Method A) Modulation Limit 1. Position the EUT as shown in figure 2, adjust the audio input frequency to 100 Hz and the input level from 0V to maximum permitted input voltage with recording each carrier frequency deviation responding to respective input level. 2. Repeat step 1 with changing the input frequency for 200, 500, 1000, 3000, and 5000 Hz in sequence. B) Frequency response of all circuits 1. Position the EUT as shown in figure 2. 2. Vary the modulating frequency from 100 Hz to 15000 Hz with constant input voltage (derived from 5.4(a) of this test report), and observe the change in output. Figure 2 : Modulation characteristic measurement configuration Radio EUT Communication Test Set Spectrum Analyzer Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 6 of 29 Sheets FCC ID: INGRU-850LTH 4.3 Measurement Instrument Equipment Manufacturer Model No. Calibration Date Next Cal. Date Communications AEROFLEX 2945B 2017/01/09 2018/01/08 Service Monitor Spectrum Analyzer Rohde & Schwarz FSP40 2017/11/02 2018/11/01 4.4 Measurement Result RF Frequency : 470MHz Test Date : Nov. 16, 2017 Temperature : 23 °C Humidity : 55 % A). Frequency response 100 Hz 200 Hz 500 Hz 1kHz 3 kHz 5 kHz 6 5 4 Output Level (V) 3 2 1 0 1 5 10 20 30 40 50 60 70 80 90 100 150 200 250 300 350 400 450 500 800 1000 Input Level (mV) Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 7 of 29 Sheets FCC ID: INGRU-850LTH B). Modulation Limit 100 Hz 200 Hz 500 Hz 1kHz 3 kHz 5 kHz kHz 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 1 5 10 20 30 40 50 60 70 80 90 100 150 200 250 300 350 400 450 500 800 1000 Input Level (mV) C). Frequency response of all circuits 20 10 Frequency Response (dB) 0 -10 -20 -30 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Input Frequency (kHz) Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 8 of 29 Sheets FCC ID: INGRU-850LTH 5. OCCUPIED BANDWIDTH OF EMISSION 5.1 Provisions Applicable According to §2.1049 (c)(1), For radiotelephone transmitter, other than single sideband or indenpent sideband transmitter, when modulateed by a 2.5kHz tone at an input level 16 dB greater than that necessary to produce 50 percent modulation. According to §74.861( e)(5), the frequency emission bandwidth shall not exceed 200 kHz. 5.2 Measurement Method 1. Check the calibration of the measuring instrument using either an internal calibrator or a known signal from an external generator. 2. Position the EUT as shown in figure 3, and Install new batteries in the EUT. Turn on the EUT ant set it to any one convenient frequency within its operating range. Set a reference level on the measuring instrument equal to the highest peak value. 3. Apply a 2.5 kHz modulation signal to EUT and measure the frequencies of the modulated signal from the EUT where it is the specified number of dB below the reference level set in step 2. This is the occupied bandwidth specified. Figure 3 : Occupied bandwidth measurement configuration Radio EUT Communication Test Set Spectrum Analyzer 5.3 Occupied Bandwidth Test Equipment Equipment Manufacturer Model No. Calibration Date Next Cal. Date Communications AEROFLEX 2945B 2017/01/09 2018/01/08 Service Monitor Spectrum Analyzer Rohde & Schwarz FSP40 2017/11/02 2018/11/01 Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 9 of 29 Sheets FCC ID: INGRU-850LTH 5.4 Bandwidth Measured 5.4.1 Input Level Derived RF Frequency : 470MHz Test Date : Nov. 16, 2017 Temperature : 23 °C Humidity : 55 % Input Audio Frequency : 2.5 kHz, Sine Wave Frequency Devition kHz 50 45 40 35 30 25 20 15 10 5 0 1 5 10 20 30 40 50 60 70 80 90 100 150 200 250 300 350 400 450 500 800 1000 Input Level (mV) The Level input to produce 50﹪modulation is 40 mV, therefore the magnitude 16 dB greater than it is 252 mV. Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 10 of 29 Sheets FCC ID: INGRU-850LTH 5.4.2 Occupied Bandwidth Plotted Test Date : Nov. 16, 2017 Temperature : 23 °C Humidity : 55 % RF Frequency (MHz) 26 dB Bandwidth (kHz) 470.000 94.5 608.000 94.5 Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 11 of 29 Sheets FCC ID: INGRU-850LTH * RBW 3 kHz Delta 1 [T1 ] * VBW 10 kHz -0.18 dB Ref 0 dBm * Att 20 dB SWT 30 ms 94.500000000 kHz 0 Marker 1 [T1 ] -38.62 dBm * 469.953000000 MHz A -10 1 PK VIEW -20 -30 1 1 D1 -37.76 dBm -40 -50 -60 -70 -80 -90 -100 Center 470 MHz 25 kHz/ Span 250 kHz 470-腰掛 Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 12 of 29 Sheets FCC ID: INGRU-850LTH * RBW 3 kHz Delta 1 [T1 ] * VBW 10 kHz -0.18 dB Ref 0 dBm * Att 20 dB SWT 30 ms 94.500000000 kHz 0 Marker 1 [T1 ] -38.62 dBm * 607.953000000 MHz A -10 1 PK VIEW -20 -30 1 1 D1 -37.76 dBm -40 -50 -60 -70 -80 -90 -100 Center 608 MHz 25 kHz/ Span 250 kHz Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 13 of 29 Sheets FCC ID: INGRU-850LTH 6. FIELD STRENGTH OF EMISSION 6.1 Provisions Applicable According to §2.1053, measurements shall be made to detect spurious emission that may be radiated directly from the cabinet, control circuits, power leads, or intermediate circuit elements under normal condition of installation and operation. Information submitted shall include the relative radiated power of spurious emission with reference to the rated power output of the transmitter, assuming all emissions are radiated from a halfwave dipole antenna. According to §74.861(e)(6), the mean power of emissions shall be attenuated below the mean output power of the transmitter in accordance with the follwing sceedule: (i) on any frequency removed from the operating frequency by more than 50 percent up to and including 100 percent of the authorized bandwidth: at least 25 dB. (ii) on any frequency removed from the operating frequency by more than 100 percent up to and including 250 percent of the authorized bandwidth: at least 35 dB. (iii) on any frequency removed from the operating frequency by more than 250 percent of the authorized bandwidth shall be attenuated below the unmodulated carrier by at least 43 plus 10 Log(output power in watts) dB. 6.2 Measurement Procedure 1. Setup the configuration per figure 4 and 5 for frequencies measured below and above 1 GHz respectively. 2. For emission frequencies measured below and above 1 GHz, set the spectrum analyzer on a 100 kHz and 1 MHz resolution bandwidth respectively. 3. The search antenna is to be raised and lowered over a range from 1 to 4 meters in horizontally polarized orientation. Position the highness when the highest value is indicated on spectrum analyzer, then change the orientation of EUT on test table over a range from 0。 to 360。with a speed as slow as possible, and keep the azimuth that highest emission is indicated on the spectrum analyzer. Vary the antenna position again and record the highest value as a final reading. A RF test receiver is also used to confirm emissions measured. 4. Repeat step 3 until all frequencies need to be measured were complete. 5. Repeat step 5 with search antenna in vertical polarized orientations. 6. Check the three frequencies of highest emission with varying the placement of cables associated with EUT (if any) to obtain the worse case and record the result. Note: According to 12.7.2(d)(2) of ANSI C63.10-2013: E[dBμV/m] = EIRP[dBm] + 95.2, for d = 3 m. 12.7.2(e) of ANSI C63.10-2013: For conducted measurements below 1000 MHz, the field strength shall be computed as specified in item d), and then an additional 4.7 dB shall be added as an upper bound on the field strength that would be observed on a test range with a ground plane for frequencies between 30 MHz and 1000 MHz, or an additional 6 dB shall be added for frequencies below 30 MHz. Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 14 of 29 Sheets FCC ID: INGRU-850LTH Figure 4 : Frequencies measured below 1 GHz configuration Antenna Tower 3m Search Antenna EUT 4m RF Test Receiver Turn 1m 0.8m Table Ground Plane Figure 5 : Frequencies measured above 1 GHz configuration Antenna Tower EUT Horn Antenna 3m 4m Spectrum Analyzer 1.5m Turn 1m Table Amplifier Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 15 of 29 Sheets FCC ID: INGRU-850LTH 6.3 Measuring Instrument Equipment Manufacturer Model No. Calibration Date Next Cal. Date EMI Test Receiver Rohde & Schwarz ESU 40 2017/11/15 2018/11/14 Bi-Log Antenna ETC MCTD 2786 2017/08/10 2018/08/09 Horn Antenna EMCO 3115 2017/10/11 2018/10/10 Horn Antenna EMCO 3116 2017/11/15 2018/11/14 Amplifier HP 8447D 2016/12/28 2017/12/27 Amplifier HP 83051A 2017/08/25 2018/08/24 Measuring instrument setup in frequency band measured is as following : Frequency Band Resolution Video Instrument Function (MHz) bandwidth Bandwidth 30 to 1000 Spectrum Analyzer Peak 100 kHz 100 kHz Above 1000 Spectrum Analyzer Peak 1 MHz 1 MHz Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 16 of 29 Sheets FCC ID: INGRU-850LTH 6.4 Measuring Data 6.4.1. Harmonic Frequencies Site :CHAMBER#2 Date :2017-11-20 Limit :-13 DBM Ant. Pol. :HORIZONTAL EUT :Wireless Handheld Microphone Model :RU-850LTH Power Rating :BATTERY 3V Temp. :21˚C Engineer : Brian Huang Humi. :56 % Test Mode :TX Test Mode :470MHz Freq Reading Correction Result Limits Over limit Detector Factor MHz dBuV dB dBm dBm dB 940.0020 43.21 -93.11 -49.90 -13.00 -36.90 Peak Note : 1. Result = Reading + Corrected Factor 2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)} {ERP = EIRP – 2.15dB} 3. The margin value=Limit - Result Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 17 of 29 Sheets FCC ID: INGRU-850LTH Site :CHAMBER#2 Date :2017-11-20 Limit :-13 DBM Ant. Pol. :VERTICAL EUT :Wireless Handheld Microphone Model :RU-850LTH Power Rating :BATTERY 3V Temp. :21˚C Engineer : Brian Huang Humi. :56 % Test Mode :TX Test Mode :470MHz Freq Reading Correction Result Limits Over limit Detector Factor MHz dBuV dB dBm dBm dB 940.0020 44.61 -93.11 -48.50 -13.00 -35.50 Peak Note : 1. Result = Reading + Corrected Factor 2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)} {ERP = EIRP – 2.15dB} 3. The margin value=Limit – Result Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 18 of 29 Sheets FCC ID: INGRU-850LTH Site :CHAMBER#2 Date :2017-11-20 Limit :-13 DBM Ant. Pol. :HORIZONTAL EUT :Wireless Handheld Microphone Model :RU-850LTH Power Rating :BATTERY 3V Temp. :21˚C Engineer : Brian Huang Humi. :56 % Test Mode :TX Test Mode :470MHz, 608MHz Freq Reading Correction Result Limits Over limit Detector Factor MHz dBuV dB dBm dBm dB 1216.0060 55.80 -108.00 -52.20 -13.00 -39.20 Peak 1410.0040 59.78 -107.38 -47.60 -13.00 -34.60 Peak 1824.0080 58.06 -104.96 -46.90 -13.00 -33.90 Peak Note : 1. Result = Reading + Corrected Factor 2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)} {ERP = EIRP – 2.15dB} 3. The margin value=Limit - Result Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 19 of 29 Sheets FCC ID: INGRU-850LTH Site :CHAMBER#2 Date :2017-11-20 Limit :-13 DBM Ant. Pol. :VERTICAL EUT :Wireless Handheld Microphone Model :RU-850LTH Power Rating :BATTERY 3V Temp. :21˚C Engineer : Brian Huang Humi. :56 % Test Mode :TX Test Mode :470MHz, 608MHz Freq Reading Correction Result Limits Over limit Detector Factor MHz dBuV dB dBm dBm dB 1216.0060 53.80 -108.00 -54.20 -13.00 -41.20 Peak 1410.0040 55.28 -107.38 -52.10 -13.00 -39.10 Peak 1824.0080 53.46 -104.96 -51.50 -13.00 -38.50 Peak Note : 1. Result = Reading + Corrected Factor 2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)} {ERP = EIRP – 2.15dB} 3. The margin value=Limit – Result Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 20 of 29 Sheets FCC ID: INGRU-850LTH 6.4.2 Spurious Emissions Site :CHAMBER#2 Date :2017-11-20 Limit :-13 DBM Ant. Pol. :HORIZONTAL EUT :Wireless Handheld Microphone Model :RU-850LTH Power Rating :BATTERY 3V Temp. :21˚C Engineer : Brian Huang Humi. :56 % Test Mode :TX Freq Reading Correction Result Limits Over limit Detector Factor MHz dBuV dB dBm dBm dB 212.3600 39.30 -108.81 -69.51 -13.00 -56.51 Peak 266.6800 40.26 -106.83 -66.57 -13.00 -53.57 Peak 317.1200 39.74 -104.82 -65.08 -13.00 -52.08 Peak 400.5400 39.24 -102.80 -63.56 -13.00 -50.56 Peak 468.4400 40.17 -102.03 -61.86 -13.00 -48.86 Peak 516.9400 40.21 -101.48 -61.27 -13.00 -48.27 Peak Note : 1. Result = Reading + Corrected Factor 2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)} {ERP = EIRP – 2.15dB} 3. The margin value=Limit - Result Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 21 of 29 Sheets FCC ID: INGRU-850LTH Site :CHAMBER#2 Date :2017-11-20 Limit :-13 DBM Ant. Pol. :VERTICAL EUT :Wireless Handheld Microphone Model :RU-850LTH Power Rating :BATTERY 3V Temp. :21˚C Engineer : Brian Huang Humi. :56 % Test Mode :TX Freq Reading Correction Result Limits Over limit Detector Factor MHz dBuV dB dBm dBm dB 293.8400 40.06 -105.41 -65.35 -13.00 -52.35 Peak 390.8400 41.00 -103.08 -62.08 -13.00 -49.08 Peak 435.4600 40.98 -102.38 -61.40 -13.00 -48.40 Peak 480.0800 40.90 -101.91 -61.01 -13.00 -48.01 Peak 557.6800 40.85 -100.89 -60.04 -13.00 -47.04 Peak 571.2600 40.76 -100.65 -59.89 -13.00 -46.89 Peak Note : 1. Result = Reading + Corrected Factor 2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)} {ERP = EIRP – 2.15dB} 3. The margin value=Limit - Result Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 22 of 29 Sheets FCC ID: INGRU-850LTH 6.4.3 Emission mask plots * RBW 3 kHz Marker 1 [T1 ] * VBW 10 kHz -4.26 dBm Ref 0 dBm * Att 20 dB SWT 225 ms 470.000000000 MHz 1 0 * A -10 1-FCC-BW 1 PK VIEW -20 2 PK VIEW -30 -40 -50 -60 -70 -80 -90 -100 Center 470 MHz 200 kHz/ Span 2 MHz Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 23 of 29 Sheets FCC ID: INGRU-850LTH * RBW 3 kHz * VBW 10 kHz Ref 0 dBm * Att 20 dB SWT 225 ms 0 * A -10 2-FCC-BW 1 PK VIEW -20 2 PK VIEW -30 -40 -50 -60 -70 -80 -90 -100 Center 608 MHz 200 kHz/ Span 2 MHz Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 24 of 29 Sheets FCC ID: INGRU-850LTH 6.5 Radiated Measurement Photos Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 25 of 29 Sheets FCC ID: INGRU-850LTH 7. FREQUENCY STABILITY MEASUREMENT 7.1 Provisions Applicable According to §2.1055 (a)(1), the frequency stability shall be measured with variation of ambient temperature from -30 to +50 centigrade. According to §2.1055 (d)(1), the frequency stability shall be measured with variation of primary supply voltage from 85 to 115 percent of the nominal value for other than hand carried battery equipment. According to § 2.1055 (d)(2), for hand carried, battery powered equipment, reduce primary supply voltage to the battery operating end point which shall be specified by the manufacturer. According to §74.861(e)(4), the frequency tolerance of the transmitter shall be 0.005 percent. 7.2 Measurement Procedure A) Frequency stability versus environmental temperature 1. Setup the configuration per figure 6 for frequencies measured at an environmental chamber. 2. Turn on EUT and set SA center frequency to the right frequency needs to be measured. Set SA RBW to 30 kHz, VBW to 100kHz and frequency span to 500 kHz. Then turn off the EUT. 3. Set the temperature of chamber to 50℃. Allow sufficient time for the temperature of the chamber to stabilize. While maintaining a constant temperature inside the chamber, turn the EUT on and measure the EUT operating frequency when the frequency has stablized. 4. Repeat step 3 with a 10℃ decreased per stage until the lowest temperature -30℃ is measured, record all measurement frequencies. B) Frequency stability versus input voltage 1. Setup the configuration per figure 6 for frequencies measured at an environmental chamber set for a temperature of 25℃. Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 26 of 29 Sheets FCC ID: INGRU-850LTH 2. Set SA center frequency to the right frequency needs to be measured. Then set SA RBW to 30 kHz, VBW to 100kHz and frequency span to 500 kHz. 3. Supply the EUT primary voltage with 85 and 115 percent of the nominal value and record the frequency. Figure 6 : Frequency stability measurement configuration Temperature Chamber Spectrum Analyzer DC Power Supply 7.3 Measurement Instrument Equipment Manufacturer Model No. Calibration Date Next Cal. Date Spectrum Analyzer Rohde & Schwarz FSP40 2017/11/02 2018/11/01 Temperature Chamber ESPEC EFL-3 2017/07/26 2018/07/25 Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 27 of 29 Sheets FCC ID: INGRU-850LTH 7.4 Measurement Data Test Date : Nov. 16, 2017 Temperature : 23 °C Humidity : 55 % A. Tx Frequency 470 MHz A1. Frequency stability versus enviroment tempture Reference Frequency :470 MHz Limit：0.005% Enviroment Power (MHz) (%) Tempture Supplied (℃) (Vdc) 50 469.9995 -0.00011 40 470.0011 0.00023 30 470.0026 0.00055 20 3.0 470.0043 0.00091 10 470.0062 0.00132 0 470.0088 0.00187 -10 470.0105 0.00223 -20 470.0119 0.00253 -30 470.0136 0.00289 A2. Frequency stability versus supplied voltage Reference Frequency : 470 MHz Limit：0.005% Enviroment Power (MHz) (%) Tempture Supplied (℃) (Vdc) 25 2.5 470.0037 0.00079 25 3.5 470.0037 0.00079 Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 28 of 29 Sheets FCC ID: INGRU-850LTH Test Date : Nov. 16, 2017 Temperature : 23 °C Humidity : 55 % B. Tx Frequency 608 MHz B1. Frequency stability versus enviroment tempture Reference Frequency :608 MHz Limit：0.005% Enviroment Power (MHz) (%) Tempture Supplied (℃) (Vdc) 50 607.9874 -0.00207 40 607.9892 -0.00178 30 607.9915 -0.00140 20 3.0 607.9938 -0.00102 10 607.9962 -0.00062 0 607.9989 -0.00018 -10 608.0015 0.00025 -20 608.0040 0.00066 -30 608.0066 0.00109 B2. Frequency stability versus supplied voltage Reference Frequency : 608 MHz Limit：0.005% Enviroment Power (MHz) (%) Tempture Supplied (℃) (Vdc) 25 2.5 607.9926 -0.00122 25 3.5 607.9926 -0.00122 Rev. 2.0

ETC Report No.: 16-04-RBF-003-01 Sheet 29 of 29 Sheets FCC ID: INGRU-850LTH 8 CONDUCTED EMISSION MEASUREMENT 8.1 Standard Applicable This EUT is excused from investigation of conducted emission, for it is powered by DC battery only. According to §15.207 (d), measurements to demonstrate compliance with the conducted limits are not required for devices which only employ battery power for operation and which do not operate from the AC power lines or contain provisions for operation while connected to the AC power lines. Rev. 2.0


Document Created: 2018-10-11 13:11:11
Document Modified: 2018-10-11 13:11:11
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