Test Report_DSS-2

FCC ID: TFB-1004

Test Report

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FCCID_3410456

Plots – EDR2 Time of Occupancy Single Hop Dwell Time Occurrences in 5 sec Window Low Channel Low Channel Mid Channel Mid Channel High Channel High Channel Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 36 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

Plots – EDR3 Time of Occupancy Single Hop Dwell Time Occurrences in 5 sec Window Low Channel Low Channel Mid Channel Mid Channel High Channel High Channel Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 37 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

5.2 Radiated Emissions The frequency spectrum is investigated for intentional and / or unintentional signals emanating from the EUT by use of a standardized test site and measurement antenna. The antenna, cable, pre‐amp, and other necessary measurement system correction factors are loaded onto the EMI receiver / spectrum analyzer when the Description of measurements are performed allowing the data to be gathered and reported as Measurement corrected values. The maximum emissions from the EUT are determined by turn‐table azimuth rotation (360°) and scanning of the measurement antenna. Maximized levels are noted at degree values of azimuth, measurement antenna height, and measurement antenna polarity. Measurement (dBµV) + Cable factor (dB) + Other (dB) + Antenna Factor (dB/m) = Corrected Reading (dBµV/m) Example Margin (dB) = Limit (dBµV/m) ‐ Corrected Reading (dBµV/m) Calculations Example at 4000 MHz: Reading = 40 dBµV + 3.4 dB + 0.9 dB + 6.5 dB/m = 50.8 dBµV/m Average Limit = 20 log (500) = 54 dBµV/m Margin = 54 dBµV/m ‐ 50.8 dBµV/m = 3.2 dB Block Diagram EMI Receiver / Antenna EUT Spectrum Analyzer Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 38 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

5.2.1 Radiated – Restricted Band Edges Operator Kimberly Bay QA Shane Dock Test Date March 22, 2017 / May 7, 2017 Location 3‐meter Semi‐Anechoic Chamber Temp. / R.H. 20°C/31%RH Requirement FCC 15.247 (d) / RSS‐247 Section 5.5 Method ANSI C63.10 2013 Section 6.10.5 FCC 15.209 Limits: Frequency Average Limit Peak Limit Above 960 MHz 54 dBµV/m 74 dBµV/m Test Parameters 2310‐2390 MHz Frequency 2483.5‐2500 MHz Distance 3 meters Test Chamber Absorbers on floor, tilt‐gear used with antenna to maintain cone of radiation Maximum power setting, GFSK, single channel mode & hopping mode, random data EUT pattern FlexPIFA ‐ Highest Gain Antenna Notes Tested in three orientations with maximum results reported. Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 39 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

Instrumentation Table – Band Edges – Single Channel Mode Peak Peak Peak Average Avg. Average Average Band Data Peak Limit Frequency Reading Margin Frequency Reading Limit Margin Edge Rate (dBµV/m) (MHz) (dBµV/m) (dB) (MHz) (dBµV/m) (dBµV/m) (dB) Lower GFSK 2387 57.1 74 16.9 2385 43.6 54 10.4 Upper GFSK 2497 58.3 74 15.7 2484 44.6 54 9.4 Table – Band Edges – Hopping Mode Peak Peak Peak Average Avg. Average Average Band Data Peak Limit Frequency Reading Margin Frequency Reading Limit Margin Edge Rate (dBµV/m) (MHz) (dBµV/m) (dB) (MHz) (dBµV/m) (dBµV/m) (dB) Lower GFSK 2368 51.6 74 22.4 2390 39.6 54 14.4 Upper GFSK 2497 52.1 74 21.9 2497 39.7 54 14.3 Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 40 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

Plots – Radiated Band Edge – Single Channel Mode Low Channel ‐ Peak Low Channel ‐ Average High Channel ‐ Peak High Channel – Average Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 41 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

Plots – Radiated Band Edge – Hopping Mode LBE Hopping Mode ‐ Peak LBE Hopping Mode ‐ Average UBE Hopping Mode ‐ Peak UBE Hopping Mode – Average Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 42 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

5.2.2 Radiated – Spurious Emissions Operator Shane Dock / Kimberly Bay QA Kimberly Bay / Shane Dock Test Date March 2, 2017 / March 23, 2017 Location 3‐meter Semi‐Anechoic Chamber Temp. / R.H. 21°C / 30% R.H. / 21°C / 28%RH Requirement FCC 15.247 (d) / RSS‐247 Section 5.5 Method ANSI C63.10 2013 Sections 6.5 and 6.6 FCC 15.209 Limits: Quasi‐Peak Limit Average Limit Frequency (MHz) Peak Limit (dBµV/m) (dBµV/m) (dBµV/m) 30‐88 40 N/A N/A 88‐216 43.5 N/A N/A 216‐960 46 N/A N/A Above 960 N/A 54 74 Test Parameters Frequency 30 MHz – 25 GHz Distance 3 meters Measurements below 1 GHz EMI Receiver with QP detector, RBW = 120 kHz, VBW = 1.2 MHz Settings Measurements above 1 GHz Spectrum Analyzer with Average and Peak detectors, RBW = 1 MHz, VBW = 3 MHz (unless otherwise noted) Above 1 GHz: absorbers on floor and tilt‐gear used with antenna to maintain cone of Test Chamber radiation Maximum power setting, GFSK, single channel mode (H, M, L channels), random data EUT pattern FlexPIFA ‐ Highest Gain Antenna Notes Tested in three orientation with maximum results reported. Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 43 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

Instrumentation Table ‐ Bluetooth Spurious Emission Data 30‐1000 MHz Frequency Height Azimuth QP Reading QP Limit Margin Antenna EUT Channel Notes (MHz) (m) (degree) (dBµV/m) (dBµV/m) (dB) Polarity Orientation 949.18 1.00 0.0 28.5 43.5 15.0 Horizontal Vertical Low 1 947.08 1.00 0.0 28.4 43.5 15.1 Vertical Vertical Low 1 196.64 1.00 0.0 28.0 43.5 15.5 Vertical Vertical Low 1 198.74 1.00 0.0 28.0 43.5 15.5 Horizontal Vertical Low 1 1) Noise floor measurement Table ‐ Bluetooth Spurious Emission Data 1‐25 GHz Frequency Height Azimuth Peak Average Average Average Antenna EUT Channel (MHz) (m) (degree) Reading Reading Limit Margin Polarity Orientation (dBµV/m) (dBµV/m) (dBµV/m) (dB) 4804 1.67 235 44.5 37.8 54 16.2 Horizontal Side Low 4880 1.00 45 45.3 39.8 54 14.2 Horizontal Side Mid 7320 1.85 50 51.8 46.4 54 7.6 Horizontal Side Mid 4960 1.00 48.5 45.3 39.3 54 14.7 Horizontal Side High 7440 1.76 62 51.9 46.4 54 7.6 Horizontal Side High Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 44 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

Plots – Radiated TX Spurious Emissions 30‐200 MHz – Horizontal Antenna 30‐200 MHz – Vertical Antenna 200‐1000 MHz – Horizontal Antenna 200‐1000 MHz – Vertical Antenna 1‐2.31 GHz – H+V Antenna 1‐2.31 GHz – H+V Antenna – Reduced VBW Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 45 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

Plots – Radiated TX Spurious Emissions, continued 2.5‐4 GHz – H+V Antenna 2.5‐4 GHz – H+V Antenna – Reduced VBW Low Channel – 4‐18 GHz – Reduced VBW Mid Channel – 4‐18 GHz – Reduced VBW High Channel – 4‐18 GHz – Reduced VBW 18‐25 GHz – Reduced VBW Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 46 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

5.3 AC Mains Conducted Emissions A line impedance stabilization network (LISN) or artificial mains network (AMN) allows the emissions of the power supply conductors to be measured while isolating the EUT from the supply mains. The AMN, cable, and other necessary measurement system correction factors are Description of loaded onto the EMI receiver when the measurements are performed. The data is Measurement gathered and reported as the corrected values. Maximum emissions are determined with a peak max hold trace then measurements at a selection of the highest points are made with quasi‐peak and average detectors. Results are recorded and compared to limit for each line. (e.g. line and neutral) Example Measurement (dBµV) + Cable factor (dB) + Other (dB) = Corrected Reading (dBµV) Calculations Margin (dB) = Limit (dBµV) ‐ Corrected Reading (dBµV) Block Diagram EMI EUT AMN Cable Receiver Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 47 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

5.3.1 AC Mains Conducted Emissions Operator Kimberly Bay QA Shane Dock Test Date April 4, 2017 Location H+V Ground Plane Temp. / R.H. 21°C / 43% R.H. Requirement FCC 15.207 / RSS‐Gen Section 8.8 Method ANSI C63.10 2013 Section 6.2 FCC 15.207 Limits: Frequency of Emission (MHz) Conducted Limit (dBµV) 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 Parameters Frequency 150 kHz to 30 MHz Settings RBW = 9 kHz, VBW = 90 kHz EUT Maximum power, GFSK, single channel mode, random data pattern Tested with an off‐the‐shelf AC‐DC adapter at 3.3VDC Notes No change in emissions between channels and modulation types. Instrumentation Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 48 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

Table – Bluetooth Conducted AC Emissions Data Quasi‐Peak Average Quasi‐ Q‐Peak Q‐Peak Average Average Average Frequency Peak Line Reading Limit Reading Limit Margin (MHz) Margin (dBµV) (dBµV) (dBµV) (dBµV) (dB) (dB) 0.159 1 42.5 65.5 23.0 32.6 55.5 23.0 0.186 1 40.8 64.2 23.4 31.2 54.2 23.1 0.222 1 39.6 62.7 23.1 29.9 52.7 22.8 0.348 2 30.0 59.0 29.0 21.9 49.0 27.1 0.276 2 30.1 60.9 30.9 22.9 50.9 28.1 0.483 2 26.5 56.3 29.8 18.6 46.3 27.6 Plots – Bluetooth Conducted AC Emissions Line 1 Line 2 Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 49 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032

6 REVISION HISTORY Version Date Notes Person V0 5/1/17 Initial Draft Release KB V1 5/9/17 Final KB END OF REPORT Company: Laird Technologies, Inc. Name: Sterling‐LWB5 Report: TR 315356 B (FHSS) Page 50 of 50 Model: Sterling‐LWB5 Job: C‐2602 Serial: 00009, 00015, 00019, 00032


Document Created: 2017-05-16 16:09:30
Document Modified: 2017-05-16 16:09:30
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