MPE Evaluation

FCC ID: MCQ-XB3M1

RF Exposure Info

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FCCID_3778667

FCC Part 15, Subpart C, Section 15.247 – DTS Page 61 of 65 XBee3 Cellular LTE-M, Model XB3M1 FCC ID: MCQ-XB3M1 5.7. RF EXPOSURE REQUIRMENTS [§§ 15.247(i), 1.1310 & 2.1091] 5.7.1. Limits § 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in 1.1307(b). Limits for Maximum Permissible Exposure (MPE) Frequency range Electric field strength Magnetic field strength Power density Averaging time (MHz) (V/m) (A/m) (mW/cm2) (minutes) (A) Limits for Occupational/Controlled Exposures 0.3-3.0 614 1.63 *(100) 6 2 3.0-30 1842/f 4.89/f *(900/f ) 6 30-300 61.4 0.163 1.0 6 300-1500 f/300 6 1500-100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *(100) 30 2 1.34-30 824/f 2.19/f *(180/f ) 30 30-300 27.5 0.073 0.2 30 300-1500 f/1500 30 1500-100,000 1.0 30 f = frequency in MHz * = Plane-wave equivalent power density Note 1: Occupational/controlled limits apply in situations in which persons are exposed as a consequence of their employment provided those persons are fully aware of the potential for exposure and can exercise control over their exposure. Limits for occupational/controlled exposure also apply in situations when an individual is transient through a location where occupational/controlled limits apply provided he or she is made aware of the potential for exposure. Note 2: General population/uncontrolled exposures apply in situations in which the general public may be exposed, or in which persons that are exposed as a consequence of their employment may not be fully aware of the potential for exposure or can not exercise control over their exposure. ULTRATECH GROUP OF LABS File #: 18DIGI141_FCC15C247 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 January 9, 2018 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST)

FCC Part 15, Subpart C, Section 15.247 – DTS Page 62 of 65 XBee3 Cellular LTE-M, Model XB3M1 FCC ID: MCQ-XB3M1 5.7.2. Method of Measurements Calculation Method of Power Density/RF Safety Distance: PG EIRP S  4  r 2 4  r 2 Where, P: power input to the antenna in mW EIRP: Equivalent (effective) isotropic radiated power. S: power density mW/cm2 G: numeric gain of antenna relative to isotropic radiator r: distance to centre of radiation in cm 5.7.3. RF Evaluation Pursuant to KDB 447498 D01 General RF Exposure Guidance v06, Section 7.2: Simultaneous transmission MPE test exclusion applies when the sum of the MPE ratios for all simultaneously transmitting antennas incorporated in a host device is ≤ 1.0, according to calculated/estimated, numerically modeled, or measured field strengths or power density. The maximum calculated MPE ratio of the EUT with 4.4 dBi antenna Power FCC MPE Frequency EUT EIRP EUT EIRP Evaluation Density Limit MPE Ratio (MHz) (dBm) (mW) Distance (cm) 2 (mW/cm ) (mW/cm2) 2402 16.16 41.305 20 0.008 1.0 0.008 The maximum calculated MPE ratio for the EUT with 4.4 dBi antenna is 0.008, this configuration can be co-located with other antennas provided the sum of the MPE ratios for all the other simultaneous transmitting antennas incorporated in a host device is < 1.0 - 0.008 < 0. 0.992. ULTRATECH GROUP OF LABS File #: 18DIGI141_FCC15C247 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 January 9, 2018 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST)

FCC Part 15, Subpart C, Section 15.247 – DTS Page 63 of 65 XBee3 Cellular LTE-M, Model XB3M1 FCC ID: MCQ-XB3M1 The following table addresses the co-location of the EUT with 4.4 dBi antenna and u-blox AG Cellular Module (FCC ID: XPY2AGQN4NNN, IC: 8595A-2AGQN4NNN) EUT Co-located with u-blox AG Cellular Module (FCC ID: XPY2AGQN4NNN, IC: 8595A-2AGQN4NNN) 1 2 Power FCC Frequency Conducted Conducted Antenna Max EUT Max EUT Evaluation Power Frequency Density Power Band Output Power Output Power Gain EIRP EIRP Distance Density (MHz) FCC Limit Density (MHz) (mW) (dBm) (dBi) (dBm) (mW) (cm) (mW/cm2) (mW/cm2) MPE Ratio 1850-1910 1850 316 25.00 7.12 32.12 1629.30 20 0.324 1.000 0.324 1710-1755 1710 316 25.00 6.74 31.74 1492.79 20 0.297 1.000 0.297 824-849 824 316 25.00 4.10 29.10 812.83 20 0.162 0.549 0.294 699-716 699 316 25.00 3.67 28.67 736.21 20 0.146 0.466 0.314 2402-2480 2402 15 11.76 4.4 16.16 41.30 20 0.008 1.000 0.008 (EUT) Worst case sum of the MPE ratios for all simultaneously transmitting antennas: 0.332 1 Conducted output power derived from u-blox AG Cellular Module (FCC ID: XPY2AGQN4NNN, IC: 8595A-2AGQN4NNN) filing. 2 Maximum antenna gain permitted to be used with u-blox AG Cellular Module (FCC ID: XPY2AGQN4NNN, IC: 8595A-2AGQN4NNN) and EUT in this co- location evaluation. The following table addresses the co-location of the EUT with 4.4 dBi antenna and General Cellular Module EUT Co-located with General Cellular Module Power FCC Frequency Conducted Conducted Antenna Max EUT Max EUT Evaluation Power Frequency Density Power Band Output Power Output Power Gain EIRP EIRP Distance Density (MHz) FCC Limit Density (MHz) (mW) (dBm) (dBi) (dBm) (mW) (cm) (mW/cm2) (mW/cm2) MPE Ratio 1850-1915 1850 316 25.00 8 33.00 1995.26 20 0.397 1.000 0.397 1710-1755 1710 316 25.00 7 32.00 1584.89 20 0.315 1.000 0.315 814-849 814 316 25.00 5 30.00 1000.00 20 0.199 0.543 0.367 699-716 699 316 25.00 5 30.00 1000.00 20 0.199 0.466 0.427 777-787 777 316 25.00 5.5 30.50 1122.02 20 0.223 0.518 0.431 2402-2480 2402 15 11.76 4.4 16.16 41.30 20 0.008 1.000 0.008 (EUT) Worst case sum of the MPE ratios for all simultaneously transmitting antennas: 0.439 ULTRATECH GROUP OF LABS File #: 18DIGI141_FCC15C247 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 January 9, 2018 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST)


Document Created: 2018-03-13 20:09:01
Document Modified: 2018-03-13 20:09:01
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