RF exposure Info

FCC ID: 2AN44-AHR-M8T

RF Exposure Info

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FCCID_3909536

Report Number. : 11988903-E6V1
       Applicant :      Mayfield Robotics
                        400 Convention Way
                        Redwood City, CA 94063

          Model :       AHR-M8T

          FCC ID :      2AN44-AHR-M8T



 EUT Description :      General Consumer Home Robot

 Test Standard(s) :     FCC Part 1 Subpart I
                        FCC Part 2 Subpart J



                      Date Of Issue:
                      June 27, 2018


                    Prepared by:
              UL Verification Services Inc.
                 47173 Benicia Street
              Fremont, CA 94538, U.S.A.
                 TEL: (510) 771-1000
                 FAX: (510) 661-0888




       NVLAP Lab Code 200065-0 (Fremont)


REPORT NO: 11988903-E6V1                                                                        DATE: June 27, 2018
FCC ID: 2AN44-AHR-M8T                                                                             MODEL: AHR-M8T

                                                  Revision History


            Issue
 Rev.       Date               Revisions                                                                Revised By
  V1        6/11/2018          Initial Issue                                                            ---
  V2        6/27/2018          Updated antenna gains, Tolerances                                        F. de Anda




                                     Page 2 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 11988903-E6V1                                                                                      DATE: June 27, 2018
FCC ID: 2AN44-AHR-M8T                                                                                           MODEL: AHR-M8T

                                               TABLE OF CONTENTS
1.     ATTESTATION OF TEST RESULTS ................................................................................. 4

2.     TEST METHODOLOGY ..................................................................................................... 5

3.     REFERENCES ................................................................................................................... 5

4.     FACILITIES AND ACCREDITATION ................................................................................. 5

5.     DESCRIPTION OF EUT ..................................................................................................... 5

6.     MAXIMUM PERMISSIBLE RF EXPOSURE ....................................................................... 6
     6.1.    FCC RULES ................................................................................................................ 6
     6.2.    IC RULES .................................................................................................................... 7
     6.3.    EQUATIONS................................................................................................................ 8
     6.4.    LIMITS AND IC EXEMPTION .....................................................................................10

7.     RF EXPOSURE RESULTS ................................................................................................11




                                     Page 3 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
     This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 11988903-E6V1                                                                        DATE: June 27, 2018
FCC ID: 2AN44-AHR-M8T                                                                             MODEL: AHR-M8T



1. ATTESTATION OF TEST RESULTS
COMPANY NAME:                       Mayfield Robotics
                                    400 Convention Way
                                    Redwood City, CA 94063

EUT DESCRIPTION:                    General Consumer Home Robot

MODEL:                              AHR-M8T

SERIAL NUMBER:                      NA

DATE TESTED:                        NA

                                          APPLICABLE STANDARDS
                               STANDARD                                                 TEST RESULTS
          FCC PART 1 SUBPART I & PART 2 SUBPART J                                   Exempt from SAR testing


 UL Verification Services Inc. calculated the RF Exposure of the above equipment in
accordance with the requirements set forth in the above standards, using test results reported in
the test report documents referenced below and/or documentation furnished by the applicant.
All indications of Pass/Fail in this report are opinions expressed by UL Verification Services Inc.
based on interpretations of these calculations. The results show that the equipment is capable
of demonstrating compliance with the requirements as documented in this report.

Note: The results documented in this report apply only to the tested sample, under the
conditions and modes of operation as described herein. This document may not be altered or
revised in any way unless done so by UL Verification Services Inc. and all revisions are duly
noted in the revisions section. Any alteration of this document not carried out by UL Verification
Services Inc. will constitute fraud and shall nullify the document. This report must not be used
by the client to claim product certification, approval, or endorsement by NVLAP, NIST, any
agency of the Federal Government, or any agency of the U.S. government.

Approved & Released For
UL Verification Services Inc. By:




Francisco de Anda
CONSUMER TECHNOLOGY DIVISION
Operations Leader
UL Verification Services Inc.




                                     Page 4 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 11988903-E6V1                                                                        DATE: June 27, 2018
FCC ID: 2AN44-AHR-M8T                                                                             MODEL: AHR-M8T



2. TEST METHODOLOGY
All calculations were made in accordance with FCC OET Bulletin 65 Edition 97-01 and IC Safety
Code 6.


3. REFERENCES
All measurements were made as documented in test report UL Verification Services Inc.
Document 11988903-E1V2 FCC DTS Report, 11988903-E2V2 FCC BLE Report and 11988903-
E3V2 FCC BT Report for operation in the 2.4 GHz band and UL Verification Services Inc.
Document 11988903-E5V2 FCC UNII Report for operation in the 5 GHz bands.

Duty cycle data is excerpted from the applicable test reports.

Output power is excerpted from the applicable test reports.

Antenna gain data is excerpted from product documentation provided by the applicant.


4. FACILITIES AND ACCREDITATION
The test sites and measurement facilities used to collect data are located at 47173 Benicia
Street, Fremont, California, USA.

UL Verification Services Inc. is accredited by NVLAP, Laboratory Code 200065-0.


5. DESCRIPTION OF EUT
The EUT is a general consumer home robot




                                     Page 5 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 11988903-E6V1                                                                        DATE: June 27, 2018
FCC ID: 2AN44-AHR-M8T                                                                             MODEL: AHR-M8T

6. MAXIMUM PERMISSIBLE RF EXPOSURE
    6.1.         FCC RULES
§1.1310 The criteria listed in Table 1 shall be used to evaluate the environmental impact of
human exposure to radio-frequency (RF) radiation as specified in §1.1307(b), except in the case
of portable devices which shall be evaluated according to the provisions of §2.1093 of this
chapter.

                           TABLE 1—LIMITS FOR M AXIMUM PERMISSIBLE EXPOSURE (MPE)


Frequency range Electric field strength Magnetic field strength Power density Averaging time
                                                                         2
     (MHz)               (V/m)                  (A/m)             (mW/cm )      (minutes)
                              (A) Limits for Occupational/Controlled Exposure
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
300-1,500                                                                                      f/300                      6
1,500-100,000                                                                                      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
300-1,500                                                                                     f/1500                     30
1,500-100,000                                                                                    1.0                     30

f = frequency in MHz

* = Plane-wave equivalent power density

Notes:

    (1) Occupational/controlled exposure 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 a person is transient
        through a location where occupational/controlled limits apply provided he or she is made
        aware of the potential for exposure.

    (2) General population/uncontrolled exposure limits apply in situations in which the general
        public may be exposed, or in which persons who are exposed as a consequence of their
        employment may not be fully aware of the potential for exposure or cannot exercise
        control over their exposure


                                     Page 6 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 11988903-E6V1                                                                        DATE: June 27, 2018
FCC ID: 2AN44-AHR-M8T                                                                             MODEL: AHR-M8T

    6.2.         IC RULES
IC Safety Code 6 (2015), Section 2.2.2: To ensure compliance with the basic restrictions outlined
in Section 2.1, at frequencies between 10 MHz and 300 GHz, the reference levels for electric- and
magnetic-field strength and power density must be complied with.

TABLE 5: Reference Levels for Electric Field Strength, Magnetic Field Strength and Power
Density in Uncontrolled Environments




TABLE 6: Reference Levels for Electric Field Strength, Magnetic Field Strength and Power
Density in Controlled Environments




                                     Page 7 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 11988903-E6V1                                                                        DATE: June 27, 2018
FCC ID: 2AN44-AHR-M8T                                                                             MODEL: AHR-M8T

   6.3.          EQUATIONS
POWER DENSITY

Power density is given by:

S = EIRP / (4 * Pi * D^2)

Where

S = Power density in mW/cm^2
EIRP = Equivalent Isotropic Radiated Power in mW
D = Separation distance in cm

Power density in units of mW/cm^2 is converted to units of W/m^2 by multiplying by 10.


DISTANCE

Distance is given by:

D = SQRT (EIRP / (4 * Pi * S))

Where

D = Separation distance in cm
EIRP = Equivalent Isotropic Radiated Power in mW
S = Power density in mW/cm^2


SOURCE-BASED DUTY CYCLE

Where applicable (for example, multi-slot cell phone applications) a duty cycle factor may be
applied.

Source-based time-averaged EIRP = (DC / 100) * EIRP

Where

DC = Duty Cycle in %, as applicable
EIRP = Equivalent Isotropic Radiated Power in W




                                     Page 8 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 11988903-E6V1                                                                        DATE: June 27, 2018
FCC ID: 2AN44-AHR-M8T                                                                             MODEL: AHR-M8T

MIMO AND COLOCATED TRANSMITTERS (IDENTICAL LIMIT FOR ALL TRANSMITTERS)

For multiple chain devices, and colocated transmitters operating simultaneously in frequency
bands where the limit is identical, the total power density is calculated using the total EIRP
obtained by summing the EIRP (in linear units) of each transmitter.

Total EIRP = (EIRP1) + (EIRP2) + ... + (EIRPn)

where

EIRPx = Source-based time-averaged EIRP of chain x or transmitter x

The total EIRP is then used to calculate the Power Density or the Distance as applicable.


MIMO AND COLOCATED TRANSMITTERS

For multiple colocated transmitters operating simultaneously in frequency bands where different
limits apply:

The Power Density at the specified separation distance is calculated for each transmitter chain
or transmitter.

The fraction of the exposure limit is calculated for each chain or transmitter as
(Power Density of chain or transmitter) / (Limit applicable to that chain or transmitter).

The fractions are summed.

Compliance is established if the sum of the fractions is less than or equal to one.




                                     Page 9 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 11988903-E6V1                                                                        DATE: June 27, 2018
FCC ID: 2AN44-AHR-M8T                                                                             MODEL: AHR-M8T

   6.4.          LIMITS AND IC EXEMPTION

INDUSTRY CANADA EXEMPTION

RSS-102 Clause 2.5.2 RF exposure evaluation is required if the separation distance between
the user and the device’s radiating element is greater than 20 cm, except when the device
operates as follows:


• at or above 300 MHz and below 6 GHz and the source-based, time-averaged maximum e.i.r.p.
of the device is equal to or less than 1.31 x 10^-2 ƒ^0.6834 W (adjusted for tune-up tolerance),
where ƒ is in MHz;




                                     Page 10 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 11988903-E6V1                                                                        DATE: June 27, 2018
FCC ID: 2AN44-AHR-M8T                                                                             MODEL: AHR-M8T

7. RF EXPOSURE RESULTS
In the table(s) below, Power and Gain are entered in units of dBm and dBi respectively and
conversions to linear forms are used for the calculations.

(Single chain transmitters, no colocation, MPE distance > 20 cm)

Single Chain and non-colocated transmitters
     Band          Mode        FCC          IC                 Output Antenna          EIRP      Duty      EIRP    Separation
                                      Limit          Limit
                                                    AVG                     Gain                 Cycle               Distance
                                                   Power
                                 (mW/cm^2) (W/m^2) (dBm)                    (dBi)     (dBm)       (%)     (mW)           (cm)
    2.4 GHz             BLE           1.00           10.0       -16.99       3.10      -13.89     59.5     0.02          0.04
    2.4 GHz              BT           1.00           10.0       -0.90        3.10       2.20      76.9     1.28          0.32
    2.4 GHz           WLAN            1.00           10.0       16.94        3.10      20.04     100.0    100.9          2.83
     5 GHz            WLAN            1.00           10.0       18.55        3.60      22.15     100.0    164.1          3.61

      Band               @              FCC Power                  IC Power
                     Distance             Density                   Density
                                        (mW/cm^2)                  (W/cm^2)
  2.4 GHz BLE                            0.000005                   0.00005
  2.4 GHz BT                               0.0003                     0.003
                       20.00
2.4 GHz WLAN                                 0.020                    0.201
 5 GHz WLAN                                  0.033                    0.327

  BLE/2.4GHz
     WLAN
  Combined                                   0.020                    0.201
  BT/2.4GHz
    WLAN
  Combined                                   0.020                    0.203
                       20.00
   BLE/5GHz
    WLAN
  Combined                                   0.033                    0.327
   BT/5GHz
    WLAN
  Combined                                   0.033                    0.329

The device operates above 300 MHz and below 6 GHz with a maximum EIRP less than or
equal to 2.7 Watts in 2.4GHz band and 4.9 Watts in the 5GHz bands as a mobile device with a
minimum separation distance of 20 cm, therefore it is exempt from routine RF Exposure
Evaluation under RSS-102.




                                     Page 11 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 11988903-E6V1                                                                        DATE: June 27, 2018
FCC ID: 2AN44-AHR-M8T                                                                             MODEL: AHR-M8T




Notes:

   1) A tolerance value was included in the output power values above to cover the output
      power tolerance under extreme conditions as declared by the client as below;
               BLE                 +1.00 dB
               BT                 +1. 25 dB
         2.4 GHz WLan              +1.00 dB
           5 GHz Wlan              +3.00 dB

         Standard Bluetooth RF Characteristics:
         The manufacturer power variation over temperature is up to +/- 1.25dB

         BLE RF Characteristics:
         The manufacturer power variation over temperature is up to +1dB / -4dB

         WiFi RF Characteristics:
         The manufacturer power variation over temperature is up to +/- 1.0dB for 2.4GHz band.
         The manufacturer power variation over temperature is up to +/- 3.0dB for bands greater
         than 5.0GHz.


   2) The output power in the tables above is the maximum power per chain among various
      channels and various modes within the specific band.

   3) The antenna gain in the tables above is the maximum antenna gain among various
      channels within the specified band.



                                             END OF REPORT




                                     Page 12 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.



Document Created: 2018-06-28 10:48:40
Document Modified: 2018-06-28 10:48:40

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