FCC ID: 2BB6MS5-A Cell Phone Signal Booster

Cell Phone Signal Booster IN D O O R O U T D O O R S5-A Quick Start Guide How Full Signal Booster Works 1. Outdoor antenna receives outside signal from the nearby cell tower and sends it to Full Signal Booster 2. The booster amplies the signal and sends to indoor an-

tenna 3. Indoor antenna receives amplied signal and sends it throughout your rooms. 1 3 2 INDOOR OUTDOOR Vice versa, indoor antenna receives cellphone signal and sends to the booster. The booster then amplies the signal and sends it to outdoor antenna. Outdoor antenna sends signal to the cell tower Then you can make phone calls and internet streaming. Important Knowledge before Installaon In order to make a successful installaon, there is a most crical informaon you need to know- You should Prevent Self-oscillaon during installaon. Self-oscillaon happens when outdoor antenna and indoor anten-

na are installed too close to each other. When self-oscillaon hap-

pens, instead of picking up signal from the Operator Cellular Tower, the outdoor antenna picks up the transmied signal from the indoor antenna, and repeatedly boosted, thus it will generate a signal loop with a lot of noise which is called Self-oscillaon. When self-Oscillaon happens, the booster will not boost useful signal from your cellular operator, so the system will not work. R O O D N I R O O D T U O To prevent self-oscillaon during the installaon of a cellular signal booster, it is crucial to follow the given guidelines:

1. Outdoor antenna and indoor antenna need to be separated with an object or a distance. It is essenal to have a physical barrier, such as a wall, between the outdoor and indoor antennas. This helps to prevent the transmied signal from the indoor antenna from being picked up and amplied by the outdoor antenna. 2. Outdoor antenna and indoor antenna should not point to each other: Ensure that the outdoor antenna and indoor antenna are not facing each other directly. This reduces the chances of the outdoor antenna picking up the signal transmied by the indoor antenna. 3. Maintain a minimum required separaon distance: The outdoor antenna should be placed as far away as possible from the indoor antenna to minimize the risk of self-oscillaon. The minimum recommended separaon distances are:

Horizontal Distance: 20 feet (6 meters) Vercal Distance: 13 feet (4 meters) Horizontal:>6 meters(20) Vercal:>4 meters(13) By adhering to these guidelines, you can prevent self-oscillaon and ensure that the cellular signal booster funcons eecvely by amplifying the signal from the cellular operator rather than creang a loop with noise. Perfect Wrong Acceptable Wrong 1 2 3 4 1. Point to the tower 2. Antennas back to back 3. Two wall barriers 1. Not poinng to the tower 1. Point to the tower 2. Antennas back to back 3. No barriers, make sure vercal distance enough 1. Two antennas facing the same direcon 2. Vercal distance might not be enough Package Contents INDOOR OUTDOOR Cellular Signal Booster Inside Antenna 75'& 60'

Cables Outside Antenna Power Supply Outside Antenna Mounng Bracket QUICK INSTALLATION GUIDE Select the Locaon for the Outside Antenna Note: This is the most crical step and will determine the perfor-

mance of your booster. Generally, the strongest signal will be locat-

ed on the side of your home facing to the nearest cell tower from your cellphone operator. 1) Walk around your house with your cell phone, search for the place where your phone gets the strongest signal recepon, at least 3-4 signal bars. 2) Make a few phone calls there to check the call quality, if it is clear and stable, that will be an ideal posion to place the outdoor anten-

na Install the Outdoor Antenna Install the outdoor antenna on the roof above the locaon you found in Step 1. Make sure the antenna points towards the direc-

on where your cellular operators tower is. Connect the Outdoor cable to the antenna, waterproof the connectors with tapes. Note:

1) The Outdoor Antenna should be as far away as possible from the Indoor antenna. Minimum required separaon distance between outdoor Antenna:

indoor and Straight line distanceOver 30 Feet (10 meters), or Horizontal distance: 20 Feet (6 meters ) Vercal distance: 13 Feet ( 4 meters) 2) To prevent lightening, the height of the outdoor antenna should be lower than the highest point of your house. Horizontal:>6 meters(20) Vercal:>4 meters(13) Install the Indoor Antenna INDOOR OUTDOOR Place the indoor antenna at where strong signal is needed most. The Indoor Antenna is a direconal antenna, it needs to be installed on the wall. Choosing a locaon facing all over your home will help to maximize your coverage area. Note:

1) Make sure the Outdoor Antenna and Indoor Antenna are not facing to each other. 2) Make sure there is sucient separaon between the Outdoor Antenna and Indoor Antenna. Antennas,Power on INDOOR OUTDOOR Connect the Outdoor Antenna cable with "OUTDOOR " port on the cellular booster, and connect the Indoor Antenna cable with

"INDOOR " port on the repeater. Then power on the booster and check the coverage. R O O D N I R O O D T U O Opmize Coverage RESET Work To opmize coverage for this repeater, follow these steps:

1.Band: It shows the performance status of the booster in each frequency band (700MHz, 700MHz,850MHz, 1900MHz, 2100MHz). Use the "+" or "-" buons to switch between bands. 2.Outdoor Signal Strength: Range from -50~-70. It represents the signal strength your outdoor antenna picked up from outside. Aim for a signal strength of around -60dB or higher. If the signal strength is lower than that, try reposioning or adjusng the outdoor anten-

na for beer signal recepon. 3.Indoor Signal Strength: Range from 0-20dBm. It indicates the output signal strength produced by the booster. Try to get 10dBm or higher. If it is lower than that, try adjusng the outdoor antenna to improve the signal recepon and increase the coverage area. 4.Uplink/Downlink Gain: The ideal uplink gain is 60dB, and the ideal downlink gain its 70dB. 5.Work Indicator: The normal status of the work indicator is green or orange. If it turns red, it indicates that the separaon between the antennas is not enough on that band, which may result in poor coverage. Increase the distance between the antennas and ensure they are not facing each other to improve coverage. 2. Adjust Gain: In manual mode, you can adjust the uplink and downlink gain by pressing the + or buons. Aer seng, press RESET to save the sengs and exit the eding mode. 3. Reset: Press and hold RESET to restore factory sengs. Working Normally Working Normally /ALC Acve Isolaon Alarm Sleep Mode: If there is no operaon for more than 5 minutes, the booster will enter sleep mode to conserve power. Simply touch the screen to resume its operaon. Addional Informaon for Professional Installers (More Sengs):

AUTO MODE NANUAL MODE 1.Auto Mode & Manual Mode: Press and hold the "SETTING"

buon to switch between auto and manual modes. In auto mode, the booster automacally adjusts the uplink and downlink gain based on the outdoor signal strength. In manual mode, you can adjust the gain sengs manually. 2.Switch Frequency: Use the "+" or "-" buons to switch between frequencies and observe the working informaon. 3.Adjust Gain: In manual mode, press the "SETTING" buon to enter the eding mode. Use the "+" or "-" buons to adjust the uplink and downlink gain sengs. Aer making the desired adjust-

ments, press "RESET" to save the sengs and exit the eding mode. 4.Reset: Press and hold the "RESET" buon to restore the booster to its factory sengs. By following these steps and opmizing the various sengs based on the provided informaon, you can improve the coverage and performance of the booster. SAFTY GUIDLINES Important guidelines and regulaons for the safe and proper use of the cellular repeater. 1.Power Supply: Only use the power supply provided with the repeater package. Using any other power supply may result in improper funconing or damage to the device. 2.Antenna Safety: Ensure that any antenna used with the repeater is located at least 8 inches (20 cenmeters) away from all persons. This is to minimize potenal exposure to radio frequency (RF) energy. 3.Compliance with FCC Rules: The repeater has been tested and found to comply with the limits set for a class B digital device under Part 15 of the FCC Rules. These limits are designed to protect against harmful interference in residenal installaons. 4.Harmful Interference: If the repeater causes interference to network operators or other communicaon systems, it is recom-

mended to take the following measures:

Relocate the Outdoor Antenna. Increase the separaon between the Outdoor Antenna and Indoor Antenna. Seek assistance from the supplier or local installers for further guidance. 5.Compliance with Regulatory Requests: If requested by the FCC (or ISED in Canada) or a licensed wireless service provider, it is manda-

tory to cease operang the device. It is crucial to adhere to these guidelines to ensure proper funcon-

ality, minimize interference, and comply with regulatory require-

ments. If you have any specic concerns or quesons, it is advisable to consult the supplier or seek assistance from local professionals experienced in installing and operang cellular repeaters. Trouble Shoong FAQ Soluon Aer installaon, the signal improvement is not signicant, and the indoor coverage area is limited 1. Adjust the posion or direcon of the outdoor antenna, try to get a beer signal recepon. 2.Check if the cables are properly connected. 3. Raise the outdoor antenna so that it can receive beer signal. 4. Replace a higher gain outdoor antenna The phone signal is full, but the call quality is poor Aer installaon, the signal did not improve, but it was worse Check the booster Work Indicator if any of the lights is in red, it indicates that the separa-

on between the antennas is insucient. It is essenal to increase the distance between the antennas, or increase physical barriers, such as a wall, between the outdoor and indoor anten-

nas. Make sure the antennas are not facing to each other, then restart the booster. Check the booster Work Indicator if any of the lights is in red, it indicates that the separa-

on between the antennas is insucient. It is essenal to increase the distance between the antennas, or increase physical barriers, such as a wall, between the outdoor and indoor anten-

nas. Make sure the antennas are not facing to each other, then restart the booster. I have been using it normally before, but suddenly the signal is not good aer using it for a period of me 1. Check the cable connecons. 2. Check if the outdoor cable is installed securely without damage. 3. Check if LCD indicator is normal, if it is o, booster device need to be sent to supplier for repair. 1. Adjust the posion or direcon of the outdoor antenna, try to get a beer signal recepon. 3. Raise the outdoor antenna so that it can receive beer signal. 4. Replace a higher gain outdoor antenna Product Specicaons Model: S5-A Network: AWS-1/Cellular/Low A-E Blocks/700 MHz Upper C Block/Broadband PCS Model No. Smart Booster S5-A 2.Check if the cables are properly connected. Working Band Low A-E Blocks 700 MHz Upper C Block Cellular Broadband PCS AWS-1 UL Frequency Range (MHz) DL Frquency Range (MHz) Maximum Gain Maximum Output Power AGC Range Ripple in Band Impedance I/O Port Weight 699-716 777-787 824-849 1850-1915 1710-1755 729-746 746-756 869-894 1930-1995 2110-2155 UL703 dB DL 703 dB UL: 193 DL: 93 dBm 30dB 7dB 50 ohm N-Female Booster Device 2.0Kg Whole Kit 5 kg 1. Check the cable connecons. 2. Check if the outdoor cable is installed securely without damage. 3. Check if LCD indicator is normal, if it is o, booster device need to be sent to supplier for repair. Dimension 180 120 25 m Power Supply AC: 110-240 V, 50/60Hz, Output DC 5V/3A Environmental Condion Booster: IP40 Antenna: IP65

(1)Usage of unauthorized antennas, cables, and/or coupling devices may result in poor effect and, insevere cases, equipment damage.

(2)a complete list of authorized antennas, cables, and/or coupling devices:

This device complies with part 15 of the FCC Rules. Operation 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 This equipment should be installed and operated with a minumum distance of 20cm between the radiator and your body. The antenna for the device must be installed to comply with the 10 meter above ground maximum antenna height limitation This equipment complies with IC radiation exposure limits set forth for an uncontrolledenvironment. This equipment should be installed and operated with minimum distance of 20 cmbetween the radiator and your body. This transmitter must not be co-located or operating inconjunction with any other antenna or transmitter. This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subjectto the following two conditions:

(1) This device may not cause interference, and

(2) This device must accept any interference, including interference that may cause undesiredoperation of the device. Le present appareil est conforme aux CNR d'lndustrie Canada applicables aux appareils radioexempts de licence. L'exploitation est autorisee aux deux conditions suivantes:

(1) l'appareil ne doit pas produire de brouillage, et

(2) 'utilisateur de 'appareil doit accepter tout brouillage radioelectrique subi, meme si lebrouillage est susceptible d'en compromettre le fonctionnement This is a CONSUMER device. BEFORE USE, you must meet all requirements set out in CPC-2-1-05. This device MUST ONLY be operated with approved antennas and cables as specified by the manufacturer. Antennas must be installed in a way where the minimum separation distance between the antennas and a user (or bystander) specified by the manufacturer is ALWAYS maintained.In order to reduce oscillations it is recommended that sufficient separation distance is maintained between the donor and server antennas of the zone enhancer system.You MUST cease operation of this device immediately if requested by ISED or a licensed wireless service provider. WARNING:E911 location information may not be provided or may be inaccurate for calls served by using this device. Ce produit est un appareil GRAND PUBLIC. AVANT DE LUTILISER, vous devez vous conformer toutes les exigences tablies dans la CPC 2-1-0. Cet appareil NE DOIT TRE UTILIS quavec des antennes et des cbles approuvs, conformment au x indic ations du fabricant. Les antennes doivent tre installes de manire ce que la distance minim ale de spara tion entre les antennes et un utilisateur (ou un passant) spcifie par le fabricant soit T OUJOURS respecte.Afin de rduire les oscillations, il est recommandde maintenir une distance de s paration suffisante entre l es antennes du donateur et du serveur du systme denrichisseur de zon e.Vous DEVEZ cesser dutiliser cet appareil immdiatement la demande dISDE ou dun fournisseu rde services sans fil autoris. AVERTISSEMENT:Les informations relatives la localisation pour le service E911 peuvent tre non fournies ou inexactes pour les appels transitant par cet appareil.This device may operate in a fixed location only, for in-building use. Cet appareil peut fonctionner seulement un emplacement fixe lintrieur dun btiment. label:

CPC-2- 1-05 Zone Enhancers - Spectrum management and telecommunications https://ised-isde.canada.ca/site/spectrum-management-telecommunications/en/learn-more/key-

documents/procedures/client -procedures-circulars-cpc/cpc-2-1-05-zone-enhancers CEREVO TECHNOLOGY LIMITED F22, Tower B, RuiChuangGuoJi Plaza, No.8 WangJing East Road, Chaoyang District, Beijing, China 100102 Contact: Esson Diao Tel: 18218747363 Email:619991099@qq.com

Label Cellular : Uplink: 824MHz - 849MHz, Downlink: 869MHz - 894MHz AWS-1 Uplink: 1710 - 1755MHz, Downlink: 2110 - 2155MHz Broadband PCS Uplink: 1850-1915MHz, Downlink: 1930-1995MHz Low A-E Blocks: 699-716MHz, Downlink: 729-746MHz 700 MHz Upper C Block: 777-787MHz, Downlink: 746-756MHz Product: Cell Phone Signal Booster Model: S5-A FCC ID: 2BB6MS5-A IC : 31014-S5A Made in China the antenna for the device must be installed to comply with the 10 meter above ground maximum antenna height limitation This is a CONSUMER device. BEFORE USE, you MUST REGISTER THIS DEVICE with your wireless provider and have your provider's consent. Most wireless providers consent to the use of signal boosters. Some providers may not consent to the use of this device on their network. lf you are unsure, contact your provider. In Canada, BEFORE USE you must meet all requirements set out in ISED CPC-2-1-05. You MUST operate this device with approved antennas and cables as specified by the manufacturer. Antennas MUST be installed at least 20 cm (8 inches) from (i.e., MUST NOT be installed within 20 cm of) any person. You MUST cease operating this device immediately if requested by the FCC (or ISED in Canada) or a licensed wireless service provider. WARNING. E911 location information may not be provided or may be inaccurate for calls served by using this device. This device may be operated ONLY in a fixed location (i.e., may operate in a fixed location only) for in-building use Location Location: 90mm*40mm

CEREVO TECHNOLOGY LIMITED Section 2.911(d)(5)(i) Certification Equipment Type Company name: CEREVO TECHNOLOGY LIMITED Address: F22, Tower B, RuiChuangGuoJi Plaza, No.8 WangJing East Road, Chaoyang District, Beijing, China 100102 Product Name: Cell Phone Signal Booster FCC ID: 2BB6MS5-A Model(s): S5-A 2.911(d)(5)(i) Equipment Type We, CEREVO TECHNOLOGY LIMITED (the applicant) certify that the equipment for which authorization is sought through certification is not:

Prohibited from receiving an equipment authorization pursuant to 2.903; of the FCC rules. Identified as an equipment type in the Covered List NOTE 1 Yours sincerely, Name:

Esson Diao Date: 2023-08-07 Manager Title:

Company name: CEREVO TECHNOLOGY LIMITED NOTE 1 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(i) Equipment Type Attestation v1.2

CEREVO TECHNOLOGY LIMITED Section 2.911(d)(5)(ii) Certification Applicant (Covered List ) Company name: CEREVO TECHNOLOGY LIMITED Address: F22, Tower B, RuiChuangGuoJi Plaza, No.8 WangJing East Road, Chaoyang District, Beijing, China 100102 Product Name: Cell Phone Signal Booster FCC ID: 2BB6MS5-A Model(s): S5-A 2.911(d)(5)(ii) Applicant filing We, [CEREVO TECHNOLOGY LIMITED] (the applicant) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the Covered List NOTE 2, established pursuant to 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Esson Diao Date: 2023-08-07 Title and Company name:

Manager CEREVO TECHNOLOGY LIMITED NOTE 1 Delete option not applicable to this application. NOTE 2 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(ii) Applicant Attestation v1.3

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CEREVO TECHNOLOGY LIMITED Agent Authorization Company: CEREVO TECHNOLOGY LIMITED Address: F22, Tower B, RuiChuangGuoJi Plaza, No.8 WangJing East Road, Chaoyang District, Beijing, China 100102 Product Name: Cell Phone Signal Booster Model Number(s): S5-A Product Description: Cell Phone Signal Booster We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required 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. Signature:

Name:

Esson Diao Title:

Manager Company: CEREVO TECHNOLOGY LIMITED Date: 2023-08-11

CEREVO TECHNOLOGY LIMITED Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Subject; Request for Long Term Confidentiality FCC ID: 2BB6MS5-A Date: 2023-08-11 To Whom It May Concern, Pursuant to the provisions of the Commissions 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 BOM Operational Description Tune-up Procedure SOFTWARE SECURITY REQUIREMENTS FOR U-NII DEVICES 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: Esson Diao Title: Manager