Test Report

FCC ID: ST2-BLEM

Test Report

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FCCID_3394510

210 Cougar Court Advanced Hillsborough, NJ 08844 Compliance Laboratory Tel: (908) 927 9288 Fax: (908) 927 0728 ELECTROMAGNETIC EMISSION COMPLIANCE REPORT of PRODUCT NAME: BLE Module MODEL: BLE-M FCC ID: ST2-BLEM IC: 6012A-BLEM March 31, 2017 This report concerns (check one): Original grant x Class II change Equipment type: Low Power Intentional Radiator Deferred grant requested per 47 CF 0.457(d)(1)(ii)? yes no x If yes, defer until: (date) Company agrees to notify the Commission by (date) of the intended date of announcement of the product so that the grant can be issued on that date. Transition Rules Request per 15.37? yes no x If no, assumed Part 15, Subpart B for unintentional radiators - the new 47 CFR [10-1-90 Edition] provision. Report prepared for: Centrak, Inc. Report prepared by: Advanced Compliance Lab Report number: 0048-170221-02 The test result in this report IS supported and covered by the NVLAP accreditation

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ Table of Contents Report Cover Page .........................................................................................................1 Table of Contents ...........................................................................................................2 Figures.............................................................................................................................3 1. GENERAL INFORMATION ...................................................................................4 1.1 Verification of Compliance .........................................................................4 1.2 Equipment Modifications ............................................................................5 1.3 Product Information ....................................................................................6 1.4 Test Methodology .........................................................................................6 1.5 Test Facility ..................................................................................................6 1.6 Test Equipment ............................................................................................6 1.7 Statement for the Document Use ................................................................7 2. PRODUCT LABELING ............................................................................................8 3. SYSTEM TEST CONFIGURATION ......................................................................9 3.1 Justification ..................................................................................................9 3.2 Special Accessories .......................................................................................9 3.3 Configuration of Tested System .................................................................9 4. SYSTEM SCHEMATICS .........................................................................................15 5. CONDUCTED EMISSION DATA ..........................................................................16 5.1 Test Methods and Conditions .....................................................................16 5.2 Measurement Instrument Configuration for Conducted Emission ........16 5.3 Testing Data..................................................................................................16 6. RADIATED EMISSION DATA ...............................................................................19 6.1 Field Strength Calculation ..........................................................................19 6.2 Test Methods and Conditions .....................................................................19 6.3 Test Data .......................................................................................................19 6.4 Occupied Bandwidth ...................................................................................24 7. PHOTOS OF EUT .....................................................................................................27 2

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ Figures Figure 2.1 ID Label ........................................................................................................8 Figure 2.2 Location of ID Label ...................................................................................8 Figure 3.1 Radiated Test Setup ....................................................................................12 Figure 3.2 Conducted Test Setup .................................................................................13 Figure 4.1 EUT Schematics ...........................................................................................14 Figure 5.1 Line Conducted ............................................................................................18 Figure 5.2 Neutral Conducted .....................................................................................18 Figure 7.x EUT Photos ..................................................................................................28-30 3

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ 1. GENERAL INFORMATION 1.1 Verification of Compliance EUT: BLE MODULE Model: BLE-M Applicant: Centrak, Inc. Standards: FCC Part 15.249 IC RSS-210 Issue 9/RSS-Gen Issue 4 Result: PASS Tested by: ADVANCED COMPLIANCE LABORATORY Test Completion March 31, 2017 Date: Report Number: 0048-170221-02 The above equipment was tested by Compliance Laboratory, Advanced Technologies, Inc. for compliance with the requirement set forth in the FCC & IC rules and regulations. This said equipment in the configuration described in the report, shows the maximum emission levels emanating from equipment are within the compliance requirements. The estimated uncertainty of the test result is given as following. The method of uncertainty calculation is provided in Advanced Compliance Lab. Doc. No. 0048-01-01. Prob. Dist. Uncertainty(dB) Uncertainty(dB) Uncertainty(dB) 30-1000MHz 1-6.5GHz Conducted Combined Std. Uncertainty uc norm. ±2.36 ±2.99 ±1.83 ____________________ Wei Li Date: March 31, 2017 Lab Manager Advanced Compliance Lab 4

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ 1.2 Equipment Modifications N/A 5

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ 1.3 Product Information System Configuration ITEM DESCRIPTION ID CABLE Product BLE MODULE (1) FCC ID: ST2-BLEM IC: 6012A-BLEM Housing N/A Power Supply 1.8-3.6VDC (2) Operation Freq. 2402MHz to 2480MHz Max. Channel 40 Number Channel 2MHz Separation Modulation GFSK (BLE) (1) EUT submitted for grant. (2) provided by external DC source 1.4 Test Methodology Radiated tests were performed according to the procedures in ANSI C63.10-2013 at an antenna to EUT distance of 3 meters. 1.5 Test Facility The open area test site and conducted measurement facility used to collect the radiated and conducted data are located at Hillsborough, New Jersey, USA. This site is accepted by FCC to perform measurements under Part 15 or 18 (Registration # 90601) and also designated by IC as “ site IC 3130A”. The NVLAP Lab code for accreditation of FCC EMC Test Method is: 200101-0. 1.6 Test Equipment Manufacture Model Serial No. Description Cal Due dd/mm/yy Hewlett-Packard HP8546A 3448A00290 EMI Receiver 25/09/17 3Hz-26.5GHz Spectrum Agilent E4440A US40420700 17/06/17 Analyzer EMCO 3104C 9307-4396 20-300MHz Biconical Antenna 12/11/17 EMCO 3146 9008-2860 200-1000MHz Log-Periodic 13/11/17 Antenna ARA MWH- 1013 18-26GHZ Horn Antena 10/2/18 1826/B EMCO 3115 49225 Double Ridge Guide Horn 28/11/17 Antenna ALR- 10KHz-30MHz Active Loop Electro-Meterics 25M/30 289 28/05/17 Antenna 6

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ COM-POWER L1215A 191994 Line Impedance Stabilization 24/03/18 Networks Fischer Custom LISN-2 900-4-0009 Line Impedance Stabilization 18/03/18 Networks All Test Equipment Used are Calibrated Traceable to NIST Standards. Standard Calibration interval: 2 year. 1.7 Statement for the Document Use This report shall not be reproduced except in full, without the written approval of the laboratory. And this report must not be used by the client to claim product endorsement by NVLAP or any agency of the U.S. & Canada Governments. 7

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ 2. PRODUCT LABELING Centrak BLE Module Model No.: BLE-M FCC ID: ST2-BLEM IC: 6012A-BLEM This device complies with part 15 of the FCC & IC RSS-210 & RSS-Gen Rules. Operating is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Figure 2.1 ID Label (The statement may be shown in its user manual for small size devices ) ID Label Figure 2.2 Location of Label on EUT Proposed FCC/IC Label for Hosting Device with BLE-M Module: Brand Name Product Name & Product Model No. Contains FCC ID: ST2-BLEM IC: 6012A-BLEM This device complies with FCC Part 15C & IC RSS-210 Rules. Operating is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 8

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ 3. SYSTEM TEST CONFIGURATION 3.1 Justification The product was configured for testing in a typical fashion (as a customer would normally use it). EUT was properly orientated for being tested in the correct plane. Its antenna is permanently connected to PCB. Antenna Spec: Dipole SMT 0dBi Max Testing was performed as EUT was continuously operated with modulation at the following frequency channels: Low=2402MHz, Middle= 2440MHz, High=2480MHz. EUT was powered by external DC source for final data collection although this module will be only installed in battery powered hosting devices ( per applicant’s design spec.). 3.2 Special Accessories N/A 3.3 Configuration of Tested System Figure 3.x illustrate this system, which is tested standing along. 9

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ Orientation (X) Orientation (Y) 10

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ Orientation (Z) 11

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ 12

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ Figure 3.1 Radiated Test Setup 13

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ Figure 3.2 Conducted Test Setup 14

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ 4. SYSTEM SCHEMATICS See Attachment. Figure 4.1 System Schematics 15

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ 5. CONDUCTED EMISSION DATA 5.1 Test Methods and Conditions The EUT was under normal operational mode during the conducted emission test. EMI Receiver was scanned from 150KHz to 30MHz with maximum hold mode for maximum emission. Recorded data was sent to the plotter to generate output in linear format. At the input of the spectrum analyzer, a HP transient limiter is inserted for protective purpose. This limiter has a 10 dB attenuation in the range of 150KHZ to 30MHZ. That factor was automatically compensated by the receiver, so the readings are the corrected readings. The reference of the plot is the CISPR 22 Class B limit in Figure 5.1 through Figure 5.2. Conducted Emission Technical Requirements Class A Class B Frequency Range Quasi-Peak Average Quasi-Peak Average dBuV dBuV DBuV dBuV 150kHz –0.5MHz 79 (8912uV) 66 (1995uV) 66-56 56-46 0.5MHz-30MHz 73 (4467uV) 60 (1000uV) --- --- 0.5MHz- 5MHz --- --- 56 46 (250uV) 5MHz-30MHz --- --- 60 50 Emissions that have peak values close to the specification limit (if any) are also measured in the quasi-peak mode to determine compliance. 5.2 Measurement Instrument Configuration for Conducted Emission 5.3 Testing Data 16

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ The following plots show the neutral and line conducted emissions for the typical operation condition. The conducted test data shows the worst case emissions still below the FCC Part 15/CISPR22 Class B limits. Optional ac/dc adaptor ( providing 3V DC power) was used . Highest Data for AC Line Conducted Emissions AC Main Line Neutral Frequency (MHz) 0.520 0.680 3.960 23.810 0.170 0.540 0.610 23.480 Peak/QP Reading 13.58 13.72 13.31 13.99 13.84 12.89 13.84 13.32 (dBuV) Class B QP limit 56 56 56 60 65.42 56 56 60 Average Reading (dBuV)* Class B Average 46 46 46 50 55.42 46 46 50 Limit Complied Yes Yes Yes Yes Yes Yes Yes Yes * peak reading is well below the QP & AVG limit. Test Personnel: Tester Signature: David Tu Typed/Printed Name: David Tu 17

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ Figure 5.1 Line Conducted Emission Figure 5.2 Neutral Conducted Emission 18

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ 6. RADIATED EMISSION DATA 6.1 Field Strength Calculation The corrected field strength is automatically calculated by EMI Receiver using following: FS = RA +AF + CF + AG where FS: Corrected Field Strength in dBV/m RA: Amplitude of EMI Receiver before correction in dBV AF: Antenna Factor in dB/m CF: Cable Attenuation Factor in dB AG: Built-in Preamplifier Gain in dB (Stored in receiver as part of the calibration data) 6.2 Test Methods and Conditions The initial step in collecting radiated data is a EMI Receiver scan of the measurement range below 30MHz using peak detector and 9KHz IF bandwidth / 30KHz video bandwidth. For the range under 1GHz, 120KHz IF bandwidth / 120KHz video bandwidth are used. Both bandwidths are 1MHz for above 1GHz measurement. The frequency range from the lowest clock frequency in EUT circuitry to 10th harmonics were investigated. 6.3 Test Data The following data lists the significant emission frequencies, polarity and position, peak reading of the EMI Receiver, the FCC limit, and the difference between the peak reading and the limit. Explanation of the correction and calculation are given in section 6.1. Test Personnel: Typed/Printed Name: Edward Lee Date: March 31, 2017 19

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ Radiated Test Data for Fundamental and Harmonics per 15.249/RSS-210 (CH-2402MHz/2440MHz/2480MHz) Low Channel: 2402MHz Worst Peak@3m QP/Avg PK QP /Avg. PK Mar QP Freq.(4) H/V, Height. Azimuth (2) @3m Lim Lim (1) (dBuV/ /Avg.Mar. (MHz) Z(1) (m) (dBuV/m) (dBuV/m) (3)(dB (dBuV/m) m) (dBuV/m) uV/m) 2402 HX 1.1 000 93.8 91.1 114 94 -20.2 -2.9 4804 HX 1.1 090 48.6 42.5 74 54 -25.4 -11.5 7206 HX 1.0 330 50.6 40.4 74 54 -23.4 -13.6 2402 VX 1.1 270 89.3 86.5 114 94 -24.7 -7.5 4804 VX 1.1 330 51.9 47.8 74 54 -22.1 -6.2 7206 VX 1.0 000 50.6 40.4 74 54 -23.4 -13.6 2402 HY 1.1 000 94.5 91.7 114 94 -19.5 -2.3 4804 HY 1.1 090 48.7 41.7 74 54 -25.3 -12.3 7206 HY 1.0 090 49.6 40.2 74 54 -24.4 -13.8 2402 VY 1.1 090 90.1 87.5 114 94 -23.9 -6.5 4804 VY 1.1 180 53.8 49.2 74 54 -20.2 -4.8 7206 VY 1.0 180 51.3 42.3 74 54 -22.7 -11.7 2402 HZ 1.1 000 90.2 87.7 114 94 -23.8 -6.3 4804 HZ 1.1 180 53.7 49.0 74 54 -20.3 -5 7206 HZ 1.0 180 50.1 40.9 74 54 -23.9 -13.1 2402 VZ 1.1 090 93.7 91.0 114 94 -20.3 -3 4804 VZ 1.1 270 51.7 45.9 74 54 -22.3 -8.1 7206 VZ 1.0 160 50.7 40.8 74 54 -23.3 -13.2 Middle Channel: 2440MHz Worst Peak@3m QP/Avg PK QP /Avg. PK Mar QP Freq.(4) H/V, Height. Azimuth (2) @3m Lim Lim (1) (dBuV/ /Avg.Mar. (MHz) Z(1) (m) (dBuV/m) (dBuV/m) (3)(dB (dBuV/m) m) (dBuV/m) uV/m) 2440 HX 1.1 000 93.0 90.2 114 94 -21 -3.8 4880 HX 1.1 000 50.7 45.3 74 54 -23.3 -8.7 7320 HX 1.0 270 50.1 40.7 74 54 -23.9 -13.3 2440 VX 1.1 270 88.4 85.7 114 94 -25.6 -8.3 4880 VX 1.1 000 48.4 43.8 74 54 -25.6 -10.2 7320 VX 1.0 160 51.5 41.0 74 54 -22.5 -13 2440 HY 1.1 000 93.2 90.8 114 94 -20.8 -3.2 4880 HY 1.1 180 46.0 41.1 74 54 -28 -12.9 7320 HY 1.0 090 49.8 40.1 74 54 -24.2 -13.9 2440 VY 1.1 090 87.8 85.0 114 94 -26.2 -9 4880 VY 1.1 180 50.1 45.4 74 54 -23.9 -8.6 7320 VY 1.0 180 51.9 41.8 74 54 -22.1 -12.2 2440 HZ 1.1 000 89.8 87.4 114 94 -24.2 -6.6 4880 HZ 1.1 000 52.9 48.2 74 54 -21.1 -5.8 7320 HZ 1.0 000 51.0 41.3 74 54 -23 -12.7 2440 VZ 1.1 090 92.8 89.9 114 94 -21.2 -4.1 4880 VZ 1.1 090 49.2 44.3 74 54 -24.8 -9.7 7320 VZ 1.0 180 50.5 40.9 74 54 -23.5 -13.1 20

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ High Channel: 2480MHz Worst Peak@3m QP/Avg PK QP /Avg. PK Mar QP Freq.(4) H/V, Height. Azimuth (2) @3m Lim Lim (1) (dBuV/ /Avg.Mar. (MHz) Z(1) (m) (dBuV/m) (dBuV/m) (3)(dB (dBuV/m) m) (dBuV/m) uV/m) 2480 HX 1.1 180 92.6 89.9 114 94 -21.4 -4.1 4960 HX 1.1 330 52.3 47.6 74 54 -21.7 -6.4 7440 HX 1.0 160 50.2 40.3 74 54 -23.8 -13.7 2480 VX 1.1 090 87.6 84.8 114 94 -26.4 -9.2 4960 VX 1.1 330 51.4 45.7 74 54 -22.6 -8.3 7440 VX 1.0 180 51.5 42.4 74 54 -22.5 -11.6 2480 HY 1.1 180 93.0 90.4 114 94 -21 -3.6 4960 HY 1.1 180 51.4 43.5 74 54 -22.6 -10.5 7440 HY 1.0 180 50.6 40.4 74 54 -23.4 -13.6 2480 VY 1.1 180 89.4 86.7 114 94 -24.6 -7.3 4960 VY 1.1 000 51.9 43.8 74 54 -22.1 -10.2 7440 VY 1.0 180 50.3 44.3 74 54 -23.7 -9.7 2480 HZ 1.1 180 88.6 86.0 114 94 -25.4 -8 4960 HZ 1.1 000 52.0 48.3 74 54 -22 -5.7 7440 HZ 1.0 135 50.5 41.8 74 54 -23.5 -12.2 2480 VZ 1.1 090 91.4 88.9 114 94 -22.6 -5.1 4960 VZ 1.1 045 51.5 47.1 74 54 -22.5 -6.9 7440 VZ 1.0 045 50.0 41.3 74 54 -24 -12.7 (1) The limit for emissions within the 2400-2483.5MHz band is 50mV(94dB) per FCC Sec. 15.249 & IC RSS-210 Issue 9, Annex B.10. The limit for its harmonics is 500uV (54dB). Other spurious emissions shall be lower than either its fundamental by 50dB or the limit defined in Sec. 15.209, whichever is higher. (2) If the peak reading is less than the FCC/IC quasi-peak or average limit, it’ll be not necessary to show the measured/ calculated quasi-peak or average reading. (3) For above 1GHz range, peak reading shall meet the limit: average Limit+20dB. (4)Comparing to the limit defined in FCC Sec. 15.249, emissions average reading below the limit by 20dB were not recorded. 21

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ Other Spurious (non-harmonics) outside of 2400-2483.5MHz band per 15.209 & RSS-Gen (Transmitting & Receiving Modes)*** Antenn Peak Frequency Polarity Azimuth QP/Averag FCC 3m Difference a Reading e Reading (V,H) Height at 3m Limit Position * ** (MHz) (Z) (m) (Degree) (dBuV/m) (dBuV/m) (dBuV/m) (dBuV/m) 54.1 H 1.8 045 34.5 40.0 -5.5 58.5 H 1.8 090 34.7 40.0 -5.3 112.0 H 1.8 090 35.3 43.5 -8.2 384 H 1.1 180 35.3 46.5 -11.2 700 H 1.0 135 39.1 46.5 -7.4 914 H 1.0 120 43.5 46.5 -3.0 954 H 1.0 180 42.6 46.5 -3.9 1130 H 1.1 180 43.5 54.0 -10.5 1606 H 1.1 160 49.2 54.0 -4.8 1920 H 1.1 235 50.7 54.0 -3.3 1956 H 1.1 235 50.9 54.0 -3.1 40.2 V 1.2 000 32.7 40.0 -7.3 48.3 V 1.2 000 36.0 40.0 -4.0 115.0 V 1.1 235 35.2 43.5 -8.3 120.0 V 1.1 235 36.1 43.5 -7.4 150.0 V 1.1 135 40.4 43.5 -3.1 680 V 1.1 180 39.3 46.5 -7.2 700 V 1.1 160 39.1 46.5 -7.4 880 V 1.1 235 41.5 46.5 -5.0 920 V 1.1 160 41.8 46.5 -4.7 1256 V 1.1 090 47.9 54/0 -6.1 1640 V 1.1 045 48.1 54.0 -5.9 1893 V 1.1 180 50.3 54.0 -3.7 2204 V 1.1 180 51.6 54.0 -2.4 * If the peak reading is less than the FCC/IC quasi-peak or average limit, it’ll be not necessary to show the measured/ calculated quasi-peak or average reading. **Comparing to the limit defined in FCC Sec. 15.209& RSS-Gen, emissions below the limit by 20dB were not recorded. *** Per prescan results, non-harmonics spurious with Transmitting mode are higher than those with receiving mode and they are chosen for final data record. 22

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ 2400 Band Band-edge Spurious ( 20dB attenuation setting) * Max. Peak Reading is 62.97dBuV/m, Average Reading 49.20dBuV/m with correction factors. Both are under FCC /IC limit. * Max. Peak Reading is 63.63dBuV/m, Average Reading 50.74dBuV/m with correction factors. Both are under FCC /IC limit. 23

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ 6.4 Occupied Bandwidth Low Channel (Max. -20dB BW: 1.223MHz) Low Channel (99% BW: 1.050MHz) 24

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ Middle Channel (Max. -20dB BW: 1.208MHz) Middle Channel (99% BW: 1.043MHz) 25

BLE Module Model No: BLE-M FCC ID: ST2-BLEM IC:6012A-BLEM ________________________________________________________________________________ High Channel (Max. -20dB BW: 1.200MHz) High Channel (99% BW: 1.073MHz) 26


Document Created: 2019-08-31 15:00:29
Document Modified: 2019-08-31 15:00:29
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