FCC ID: 2ATCH-AK210520 Robotic Vacuum Cleaner

Differences

Declaration

To whom concern,

We company Shenzhen

Ankobot

Robot Co.,Ltd

Here by declares:

model(s)

A9R is the same PCB layout,

Antenna with A90+、A92, w

The product

schematic and

Shenzhen Huatongwei International

changes to the model name and the Key, from oval to round and

from Black to gold, did not affect the test.

Inspection Co., Ltd.,only

hich tested in

electronic

Sincerely

yours,

Name (in print):

Huangling

Company name: Shenzhen

Company address:

Robot Co.,Ltd

Room 2208, Office Building

aoyuan

Community,T

4, Chongwen

Street,

Road, Fuguang

Ankobot

Garden,

No.1 Tangling

Shenzhen

District,

NanShan

E-Mail:

anna.hu

Shenzhen Ankobot Robot Co.,Ltd

Office of Engineering Technology

Federal Communications Commission

7435 Oakland Mills Road

Columbia, MD 21046

Date: 2021-07-15

Subject; Request for Long Term Confidentiality

FCC ID: 2ATCH-AK210520

To Whom It May Concern,

Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are

requesting the Commission to withhold the following attachment(s) as confidential documents from

public disclosure indefinitely.

These documents contain detailed system and equipment descriptions and are considered as proprietary

information in operation of the equipment. The public disclosure of these documents might be harmful to

our company and would give competitors an unfair advantage in the market.

Schematic Diagram

Block Diagram

Operational Description

It is our understanding that all measurement test reports, FCC ID label format and correspondence during

the certification review process cannot be granted as confidential documents and this information will be

available for public review once the grant of equipment authorization is issued.

Sincerely,

Signature:

Name: Huang ling

Title: Quality Manager

Shenzhen Ankobot Robot Co.,Ltd Letter of Authorization Company: Shenzhen Ankobot Robot Co.,Ltd Address: Room 2208, Office Building 4, Chongwen Garden, No.1 Tangling Road, Fuguang Community,Taoyuan Street, NanShan District, ShenZhen Product Name: Robotic Vacuum Cleaner Model Number: A9R, A90+, A92 FCC Identifier: 2ATCH-AK210520 We authorize MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the above named equipment. Any individual within MiCOM Labs is authorized to act on our behalf and take action on the application. We declare that MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Name: Huang ling Title: Quality Manager Date: 2021-07-15

The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio

RF Exposure Evaluation

FCC ID: 2ATCH-AK210520

LIMIT

frequency (RF) radiation as specified in 1.1307(b)

Limits for Maximum Permissible Exposure (MPE)

Frequency range

(MHz)

Electric field

strength

(V/m)

Magnetic field strength

(A/m)

Power density

(mW/cm2)

Averaging time

(minutes)

0.3–3.0

3.0–30

30–300

300–1500

1500–100,000

0.3–1.34

1.34–30

30–300

300–1500

1500–100,000

(A) Limits for Occupational/Controlled Exposures

*(100)

1.63

614

*(900/f2)

4.89/f

1842/f

1.0

0.163

61.4

f/300

-

-

5

-

-

(B) Limits for General Population/Uncontrolled Exposure

1.63

614

2.19/f

824/f

0.073

27.5

-

-

-

-

*(100)

*(180/f2)

0.2

f/1500

1.0

6

6

6

6

6

30

30

30

30

30

Note: f = frequency in MHz

EVALUATION METHOD

Transmission formula: Pd = (Pout*G)/(4*pi*r2)

Where

Pd = power density in mW/cm2, Pout = output power to antenna in mW, G = gain of antenna in linear scale;

Pi = 3.1416, R = distance between observation point and center of the radiator in cm

TEST RESULT

Passed

Not Applicable

FCC ID: 2ATCH-AK210520

Frequency

range

(MHz)

2412-2462

2412-2462

2412-2462

2422-2452

Type

802.11b

802.11b

802.11n

(HT20)

802.11n

(HT40)

Note:

1) The maximum antenna gain is 2.0dBi

2) The exposure evaluation safety distance is 20cm.

Conducted

Average Power

(dBm)

Maximum

Power Density

(mW/cm2)

Limit

(mW/cm2)

Result

Tune-up

(dBm)

15.00

14.00

15.00

14.00

14.42

13.92

14.05

13.31

0.0100

0.0079

0.0100

1.0000

1.0000

1.0000

0.0079

1.0000

Pass

Pass

Pass

Pass