FCC ID: 2AF6B-RAK5147 WisLink LPWAN Concentrator

RAK5147 WisLink LPWAN Concentrator Datasheet Overview Product Description RAK5147 is an LPWAN Concentrator Module with mini-PCIe form factor based on Semtech SX1303 and SX126X for Listen Before Talk feature, which enables easy integration into an existing router or other network equipment with LPWAN Gateway capabilities. It can be used in any embedded platform offering a free mini-

PCIe slot with SPI/USB connection. Furthermore, ZOE- M8Q GPS chip is integrated onboard. This module is an exceptional, complete, and cost-efficient gateway solution offering up to 10 programmable parallel demodulation paths, 8 x 8 channel LoRa packet detectors, 8 x SF5-SF12 LoRa demodulators, and 8 x SF5-SF10 LoRa demodulators. It is capable of detecting an uninterrupted combination of packets at 8 different spreading factors and 10 channels with continuous demodulation of up to 16 packets. This product is best for smart metering fixed networks and Internet-of-Things (IoT) applications. Product Features Designed based on Mini PCI-e form factor. SX1303 baseband processor emulates 8x 8 channel LoRa packet detectors, 8x SF5-SF12 LoRa demodulators, 8x SF5-SF10 LoRa demodulators, one 125 /250 / 500 kHz high-speed LoRa demodulator, and one (G)FSK demodulator. 3.3V Mini PCI-e, compatible with 3G/LTE card of Mini PCI-e type. Tx power up to 27dBm, Rx sensitivity down to -139dBm@SF12, BW 125 kHz. Supports global license-free frequency band (EU868, US915). Supports optional SPI/USB interfaces. Listen Before Talk Fine Timestamp. Built-in ZOE-M8Q GPS module. Specifications Overview The overview shows the top and back view of the RAK5147 board. It also presents the block diagram that discusses how the board works. Board Overview RAK5147 is a compact LPWAN Gateway Module, making it suitable for integration in systems where mass and size constraints are essential. It has been designed with the PCI Express Mini Card form factor in mind, so it can easily become a part of products that comply with the standard, where they allow for cards with a thickness of at least 5.5 mm. The board has three UFL interfaces for the LoRa and GNSS antennas and a standard 52 pin connector (mPCIe). Block Diagram The RAK5147 concentrator is equipped with one SX1303 chip and two SX1257. The first chip is utilized for the RF signal and the core of the device, while the latter provides the related LoRa modem and processing functionalities. Additional signal conditioning circuitry is implemented for PCI Express Mini Card compliance, and one UFL connectors are available for external antenna integration. Figure 1: Block Diagram Hardware The hardware is categorized into seven parts. It discusses the interfacing, pinouts, and its corresponding functions and diagrams. It also covers the parameters and standard values of the board. Interfaces Power Supply - The RAK5147 concentrator module must be supplied through the 3.3Vaux pins by a DC power supply. The voltage needs to be stable since the current drawn can vary significantly during operation based on the power consumption profile of the SX1303 chip (for more information, see the SX1303 Datasheet (opens new window)). SPI Interface - SPI interface mainly provides for the Host_SCK, Host_MISO, Host_MOSI, Host_CSN pins of the system connector. The SPI interface gives access to the configuration register of SX1303 via a synchronous full-duplex protocol. Only the slave side is implemented. USB Interface - The USB interface mainly provides for the USB_D+, USB_D- pins of the system connector. The USB interface gives access to the configuration register of SX1303 via an MCU STM32L412KBU6. Only the slave side is implemented. UART and I2C Interface - RAK5147 integrates a ZOE-M8Q GPS module which has UART and I2C interface. The PINs on the golden finger provide a UART connection and an I2C connection, which allows direct access to the GPS module. The PPS signal is not only connected to SX1303 internally but also connected to the golden finger which can be used by the host board. GPS_PPS - RAK5147 includes the GPS_PPS input for received packets time-stamped and Fine timestamp. RESET - RAK5147 SPI card includes the RESET active-high input signal to reset the radio operations as specified by the SX1303 Specification. RAK5147 USB cards RESET is controlled by MCU. Antenna RF Interface - The module have two RF interface over a standard UFL connector (Hirose U. FL-

R-SMT) with a characteristic impedance of 50. The RF port (J1) is Tx and J5 is Rx, providing the antenna interface. Pin Definition Pinout Diagram Pinout Description Type Description IO DI DO OC OD PI PO NC Bidirectional Digital input Digital output Open collector Open drain Power input Power output No connection Pin No. mPCie Pin Rev.2.0 RAK5147 Pin Type Description Remarks 1 2 3 4 5 6 7 8 9 WAKE#

SX1261_BUSY DO 3.3Vaux 3V3 COEX1 SX1261_DIO1 GND GND PI IO COEX2 SX1261_DIO2 IO 1.5V GPIO(6) CLKREQ#

SX1261_NSS IO DI UIM_PWR NC GND GND 10 UIM_DATA NC Reserved for future applications Reserved for future applications Reserved for future applications Connect to the SX1302's GPIO(6) Reserved for future applications No connection by default 3.3V DC supply No connection by default Ground No connection by default No connection by default No connection by default No connection Ground No connection 11 REFCLK-

SX1261_NRESET DI No connection by default Reserved for future application 12 UIM_CLK NC 13 REFCLK+

MCU_NRESET DI 14 15 16 17 18 19 20 21 UIM_RESET NC GND GND UIM_VPP RESERVED NC NC GND GND RESERVED PPS DO W_DISABLE#

NC GND GND No connection RESET signal for MCU of RAK5147-

USB No connection Ground No connection No connection Ground Time pulse output No connection Ground Active low Leave open if not in use 22 PERST#

SX1303_RESET DI RAK5147-

SPI reset input Active high, 100ns for SX1302 reset 23 PERn0 RESET_GPS 24 3.3Vaux 3v3 DI PI 25 PERp0 STANDBY_GPS DI 26 27 GND GND GND GND Active low, leave open if not in use Active low, leave open if not in use GSP module ZOE-M8Q reset input 3.3V DC supply GPS module ZOE-M8Q external interrupt input Ground Ground 28 1.5V GPIO(8) Connect to the SX1303's GPIO(8) 29 GND GND Ground 30 SMB_CLK I2C_SCL IO HOST SCL 31 PETn0 PI_UART_TX DI HOST UART_TX 32 SMB_DATA I2C_SDA IO HOST SDA 33 34 35 PETp0 PI_UART_RX DO GND GND GND GND 36 USB_D-

USB_DM IO 37 GND GND 38 USB_D+

USB_DP 39 40 41 42 43 3.3Vaux GND 3.3Vaux 3V3 GND 3V3 LED_WWAN#

NC GND GND IO PI Pi HOST UART_RX Ground Ground USB differential data (-) Ground USB differential data (+) 3.3V DC supply Ground 3.3V DC supply No connection Ground Connect to GPS module ZOE-M8Q's SCL internally, leave open if not in use Connect to GPS module ZOE-M8Q's UART_RT internally, leave open if not in use Connect to GPS module ZOE-M8Q's SDA internally, leave open if not in use Require differential impedance of 90 Require differential impedance of 90 44 LED_WLAN#

NC 45 RESERVED HOST_SCK IO 46 LED_WPAN#

NC 47 RESERVED HOST_MISO IO 48 1.5V NC RESERVED HOST_MOSI IO 49 50 51 GND GND RESERVED HOST_CSN 52 3.3Vaux 3V3 IO PI No connection Host SPI SCK No connection Host SPI MISO No connection Host SPI MOSI Ground Host SPI CSN 3.3V DC supply RF Characteristics Frequencies The board supports the following LoRaWAN frequency channels, allowing easy configuration while building the firmware from the source code. Region Europe North America Asia Australia Korea India RF Characteristics Frequency(MHz) EU868 US915 AS923 AU915 KR920 IN865 The following table gives typically sensitivity level of the RAK5147 concentrator module. Signal bandwidth (KHz) Spreading factor Sensitivity (dBm) 125 125 Electrical Requirements 12 7

-139

-125 Stressing the device above one or more of the ratings listed in the Absolute Maximum Rating section may cause permanent damage. These are stress ratings only. Operating the module at these or any conditions other than those specified in the Operating Conditions sections of the specification should be avoided. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. The operating condition range defines those limits within which the functionality of the device is guaranteed. Where application information is given, it is advisory only and does not form part of the specification. Absolute Maximum Rating The limiting values given below are following the Absolute Maximum Rating System (IEC 134). Symbol Description Condition Min Max 3.3Vaux Module supply voltage Input DC voltage at 3.3Vaux pins USB USB D+/D- pins Input DC voltage at USB interface pins RESET RAK5147 reset input Input DC voltage at RESET input pin SPI SPI interface Input DC voltage at SPI interface pin GPS_PPS GPS 1 PPS input Input DC voltage at GPS_PPS input pin

-0.3 V

-0.3 V

-0.3 V

-0.3 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V ho_ANT Antenna ruggedness Output RF load mismatch ruggedness at ANT1 Storage temperature Tstg WARNING 10:1 VSWR 85 C

-40 C The product is not protected against overvoltage or reversed voltages. If necessary, voltage spikes exceeding the power supply voltage specification, given in table above, must be limited to values within the specified boundaries by using appropriate protection devices. Maximum ESD Parameter Min Typical Max Remarks ESD_HBM ESD_CDM Note:

1000 V Charged Device Model JESD22-C101 CLASS III 1000 V Charged Device Model JESD22-C101 CLASS III Although this module is designed to be as robust as possible, electrostatic discharge (ESD) can damage this module. This module must be protected at all times from ESD when handling or transporting. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD handling precautions should be used at all times. Power Consumption Mode Condition Min Typical Max Active Mode(TX) Active Mode(RX) The power of the TX channel is 17 dBm and 3.3 V supply. TX disabled and RX enabled.

753mA 170mA Power Supply Range Input voltage at 3.3Vaux must be above the normal operating range minimum limit to switch on the module. Symbol Parameter Min Typical Max 3.3Vaux Module supply operating input voltage 3 V 3.3 V 3.6 V Mechanical Characteristics The board weighs 16.3 grams, it is 30 mm wide and 50.96 mm tall. The dimensions of the module fall completely within the PCI Express Mini Card Electromechanical Specification, except for the card's thickness

(5.5 mm at its thickest). Environmental Requirements Operating Conditions Parameter Min Typical Max Remarks Normal operating temperature

-40 C

+25 C

+85 C Normal operating temperature range (fully functional and meet 3GPP specifications) Note:

Unless otherwise indicated, all operating condition specifications are at an ambient temperature of 25C. Operation beyond the operating conditions is not recommended and extended exposure beyond them may affect device reliability. Schematic Diagram RAK5147 concentrator module refers to Semtech's reference design for SX1303. The SPI interface can be used on the PCIe connector. The next figure shows the minimum application schematic of the RAK5147. You should use at least 3.3V/1A DC power, connect the SPI interface to the main processor. Figure 2: Schematic Diagram Models / Bundles In general, the RAK5147's variation is the defined as RAK5147 - XYZ, where X, Y, Z is the model variant. Take a look at the tables below to know the variants and their specification. Symbol Description X - Supported region Y - Interface type 1 - SPI 3 - USB, with MCU_RESET pin 6 - USB, without MCU_RESET pin Z - Additional features 0 - No additional features 2 - LBT 5 - GPS 6 - LBT and GPS Model Frequency USB SPI LBT GPS RESET PIN

1 Warning FCC Warning 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;

(2) This device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC Statement:

"This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help."

INTEGRATION INSTRUCTIONS 1. This Modular Approval is limited to OEM installation for mobile and fixed applications only. The antenna installation and operating configurations of this transmitter, including any applicable source-based time- averaging duty factor, antenna gain and cable loss must satisfy MPE categorical Exclusion Requirements of 2.1091. This equipment complies with FCC & Industry Canada exposure limits set forth for an uncontrolled environment. 2. When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily removed. If not, a second label must be placed on the outside of the final device that contains the following text: Contains FCC ID: 2AF6B-RAK5147. RAK2287X 3. The Shenzhen Rakwireless Technology Co., Ltd. modular transmitter is only FCC authorized for the FCC Part15.247 listed on the grant, and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-

radiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. RF Exposure: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. ISED Warning:

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

1. This device may not cause interference. 2. This device must accept any interference, including interference that may cause undesired operation of the device. 1 Lmetteur/rcepteur exempt de licence contenu dans le prsent appareil est conforme aux CNR dInnovation, Sciences et Dveloppement conomique Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes :

1. Lappareil ne doit pas produire de brouillage;

2. Lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den compromettre le fonctionnement. This equipment complies with FCC & Industry Canada exposure limits set forth for an uncontrolled environment. L'quipement est conforme aux limites d'exposition tablies par fac et Industrie Canada pour les environnements non contrls. The host product shall be properly labelled to identify the modules within the host product. The ISED certification label of a module shall be clearly visible at all times when installed in the host product; otherwise, the host product must be labelled to display the ISED certification number for the module, preceded by the word "contains"

or similar wording expressing the same meaning, as follows:

Contains IC: 25908-RAK5147 1 RAK2287X Le numro d'homologation d'ISDE, le NIVM, le NMP et le NIVL ne doivent pas ncessairement tre adjacents. Le numro d'homologation se compose d'un numro de compagnie (NC), attribu par le Bureau d'homologation et de services techniques dISDE, suivi du numro de produit unique (NPU) attribu par le requrant. Le numro d'homologation doit apparatre comme suit : IC: 25908-RAK5147 RSS-102 Statement This equipment complies with IC RSS_102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. Cet quipement est conforme aux limites d'exposition aux radiations IC CNR_102 tablies pour un environnement non contrl. Cet quipement doit tre install et utilis avec une distance minimale de 20 cm entre le radiateur et votre corps. Labelling The proposed FCC IC label format is to be placed on the module. If it is not visible when the module is installed into the system, Contains FCC ID: 2AF6B-RAK5147, Contains IC: 25908-RAK5147 shall be placed on the outside of final host system. Labelling This radio transmitter [25908- RAK5147] has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this lis t that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. 2 Le prsent metteur radio [25908- RAK5147] a t approuv par Innovation, Sciences et Dveloppement conomique Canada pour fonctionner avec les types d'antenne numrs cidessous et ayant un gain admissible maximal. Les types d'antenne non inclus dans cette liste, et dont le gain est suprieur au gain maximal indiqu pour tout type figurant sur la liste, sont trictement interdits pour l'exploitation de l'metteur. 2 RAK2287X Antenna info Antenna #

Manufacturer Model Antenna Gain Antenna Type Connector Type 1#

2#

3#

4#

5#

Shenzhen RAKwireless Technology Co., Ltd RAKARG15 8dBi RAKARG14 5.8dBi RAKARG19 5.1dBi RAKARJ14 2.3 dBi RAKARJ16 2.3 dBi Fiber Glass Antenna N-type male connector Fiber Glass Antenna N-type male connector Fiber Glass Antenna N-type male connector Dipole Antenna Dipole Antenna RPSMA connector RPSMA connector 3 3 About RAKw ireless:

RAKwireless is a pioneer in providing innovative and diverse Cellular and LoRaWAN connectivity solutions for both Edge and Gateway IoT devices. We believe that through easy to use and modular designs we can accelerate the time to market for various IoT Applications in order to optimize system deployment in both Developer and Commercial settings.

29mm 3.5mm arial Bold 5pt arial Bold 3.5pt arial Bold 4pt RAK WisLink LPWAN Concentrator Model: RAK5147 FCC ID: 2AF6B-RAK5147 ORO]

IC: 25908-RAK5147 =

SIN: :

MADE IN CHINA ) 17mm

902-928 MHz 5 dBi Fiber Glass Antenna

(RAKARG14) Datasheet Features Frequency range: 902 ~ 930 MHz Max gain: 5.8 dBi VSWR: 2.0 Radom body: Fiberglass High efficiency Radome body: fiberglass Vertically polarized dipole Omni-directional Easy to mount with the included Installation kit Outdoor use Figure 1: RAKARG14 overview Specifications Parameter Model Value RAKARG14 Frequency range 902 ~ 930 MHz Peak gain VSWR Efficiency Feed impedance Radiation pattern Polarization 5.8 dBi 2.0 79%

50 Ohms Omni-directional Vertical Cover material (color) Fiberglass (white) Connector type Dimensions (mm) Operation temp (C) Storage temperature Humidity range VSWR Frequency (MHz) 900 MHz 902 MHz 930 MHz N-type male 29.8 mm x 800.0 mm

-20 C ~ +65 C

-30 C ~ +75 C 5% ~ 95%

VSWR 1.32 1.33 1.47 Figure 2: RAKARG14 VSWR graph Peak Gain & Efficiency Frequency (MHz) Gain (dBi) Efficiency (%) 902 904 906 908 910 912 914 916 918 920 922 924 926 928 930 5.4 5.6 5.6 5.6 5.5 5.6 5.7 6.0 6.1 6.0 5.9 5.8 5.8 5.7 5.7 Average:

74.02 76.58 76.34 74.85 74.11 74.09 76.16 78.27 79.42 79.10 77.99 76.85 76.56 77.45 78.16 71.73 Radiation Patterns Figure 3: RAKARG14 radiation patterns Mechanical Specifications Figure 4: RAKARG14 mechanical specifications

Dima S22 Swr 1.0007 Ref 1.000 [F2]

121.00 1 902. 00000 2 904.00000 3 906.00000 4 908. 00000 6 912.00000

? 922.00000

>B 926.00000 9 928.00000 910, 00000-

MHZ MHZ MHZ MH2 MHZ MHZ MHZ MHZ MHZ ee ee 1.2810 1.2623 1.2418 1.2188 42052 1.1965 1.1567 1.1658 1.17121 1VH-900 06-3AT 2 1VE-930 900115

225 coo

eo 4 Co Ss 448

(ap) sso7 winay 30 1.00 ogg 096 094 os2 090 088 026 xa os2 ogo Frequency (GHz) 480+5mm

KRAKBJ2701C01A Features Frequency Range: 902~928MHz Quite good VSWR Max Gain: 2.3dBi High efficiency Vertically polari Specifications Model KRAKBJ2701C01A Frequency Range 902MHz~928MHz Electrical Specifications Peak Gain VSWR 2.3 dBi 1.5 Efficiency

>80%

Feed Impedance 50 Ohms Polarization Vertical 1 1 KRAKBJ2701C01A Cover material(color) Plastic(White) Interface RPSMA Dimensions (mm) 13.0mm x 198.0mm Operation Temp

(C)

-30C ~ +75C Humidity range 5%~95%

Mechanical Specifications S11&VSWR Frequency(MHz) 902MHz 928MHz S11

-18.3

-14.6 VSWR 1.28 1.46 2 2 KRAKBJ2701C01A Peak Gain & Efficiency Frequency(MHz) Peak Gain (dBi) Efficiency (%) 902 904 906 908 910 912 914 916 918 920 922 924 926 928 Average 2.3 2.2 2.2 2.3 2.3 2.3 2.3 2.2 2.2 2.2 2.2 1.9 1.9 2.1

82.6 82.3 82.7 84.0 85.0 85.7 86.0 86.1 85.9 86.0 86.4 85.9 85.1 85.5 84.9 3 3 KRAKBJ2701C01A Radiation Patterns

+Z

+Y

+X 4 4 KRAKBJ2701C01A Mechanical Specifications 5 5

KRAKBJ2701C01C Features Frequency Range: 902~928MHz Quite good VSWR Max Gain: 2.3dBi High efficiency Vertically polari Specifications Model KRAKBJ2701C01C Frequency Range 902MHz~928MHz Electrical Specifications Peak Gain VSWR 2.3 dBi 1.5 Efficiency

>80%

Feed Impedance 50 Ohms Polarization Vertical 1 1 KRAKBJ2701C01C Cover material(color) Plastic(Black) Interface RPSMA Dimensions (mm) 13.0mm x 198.0mm Operation Temp

(C)

-30C ~ +75C Humidity range 5%~95%

Mechanical Specifications S11&VSWR Frequency(MHz) 902MHz 928MHz S11

-18.3

-14.6 VSWR 1.28 1.46 2 2 KRAKBJ2701C01C Peak Gain & Efficiency Frequency(MHz) Peak Gain (dBi) Efficiency (%) 902 904 906 908 910 912 914 916 918 920 922 924 926 928 Average 2.3 2.2 2.2 2.3 2.3 2.3 2.3 2.2 2.2 2.2 2.2 1.9 1.9 2.1

82.6 82.3 82.7 84.0 85.0 85.7 86.0 86.1 85.9 86.0 86.4 85.9 85.1 85.5 84.9 3 3 KRAKBJ2701C01C Radiation Patterns

+Z

+Y

+X 4 4 KRAKBJ2701C01C Mechanical Specifications 5 5

Standard Form Date: ___30 June 2022_____ Subject: Confidentiality Request for FCC ID: 2AF6B-RAK5147 and IC: 25908-RAK5147 Pursuant to FCC 47 CRF 0.457(d) and 0.459 and IC RSP-100, Section 10, the applicant requests that a part of the subject FCC/IC application be held confidential. Type of Confidentiality Requested Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Permanent Permanent Permanent Permanent Permanent Permanent n/a n/a Exhibit Block Diagrams Internal Photos ***

Operation Description/Theory of Operation Tune-Up Procedure Schematics Users Manual***

Test Setup External Photos Shenzhen Rakwireless Technology Co., Ltd. has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality:

The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. (*** PAG only) Short-Term Confidentiality:

The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of ___180___ days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify TUV Rheinland in the event information regarding the product or the product is made available to the public. TUV Rheinland will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. Sincerely, By:

___________ ______________________ __ Vivian Xu / Engineer ______

(Signature/Title)

(Print name) MS-0044715 Page 1 of 1 Revision 0

Date: 30 June 2022 FCC ID:2AF6B-RAK5147 IC: 25908-RAK5147 Type of Module: Single Modular Transmitter No. 1 Requirements The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements. Device Conditions The module without own RF shielding. Refer to the external photos. Comply (Y/N) Y 2 3 4 5 6 7 8 The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over-modulation. The EUT has buffered modulation/data inputs. Its integrated on the chipset IC U1 /

SX1303. Refer to the schematics diagram. The modular transmitter must have its own power supply regulation. The module has its own power supply regulation. The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a unique antenna coupler. The antenna is dedicated antenna and antenna gain is 2.3dBi / 5.1 dBi / 5.8dBi / 8dBi. The modular transmitter must be tested in a stand-

alone configuration, i.e., the module must not be inside another device during testing for compliance with part 15 requirements. The modular transmitter was tested in a stand-alone configuration via a laptop PC USB interface. The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. FCC ID is permanently on the PCB. Refer to the Label Location and Label. The User Manual instruction that the OEM how to use the label. The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. Refer to the test report. Y Y Y Y Y Y Y If you have any questions regarding this, please dont hesitate to contact us. Sincerely, _________________________

(Vivian Xu / engineer) Shenzhen Rakwireless Technology Co., Ltd.