FCCID.CO- FCC ID Database
HomeCompaniesEquipment ClassesSearch

© 2026 FCC ID Database. All rights reserved.

AboutContactData sourced from FCC public records
  1. Home/
  2. CHINA DRAGON TECHNOLOGY LIMITED/
  3. ROWCDT-H18188E-NX

ROWCDT-H18188E-NXWIFI Module

CHINA DRAGON TECHNOLOGY LIMITED
WIFI Module - FCC ID ROWCDT-H18188E-NX - CHINA DRAGON TECHNOLOGY LIMITED
Click to zoom

Application Details

Equipment Class
DTS - Digital Transmission System
Date of Grant
Apr 24, 2015
Application Purpose
Original Equipment
Date of Application
Apr 24, 2015
Equipment Note
WIFI Module
Frequency Range
2412.00000000 - 2462.00000000
Company
CHINA DRAGON TECHNOLOGY LIMITED
Country
China

Documents & Files

Select a file to view

Users Manual

↗

Cover Letter(s)

↗
↗
↗
↗
↗

External Photos

↗

ID Label/Location Info

↗

Internal Photos

↗

RF Exposure Info

↗

Test Report

↗

Test Setup Photos

↗

Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

␡␡ൣᐲѝ嗉䙊⭥ᆀ、ᢰᴹ䲀ޜਨ CHINA DRAGON TECHNOLOGY LIMITED UserManual Part Name: WIFI Module Part No.: 8188 series Date: 2014-6-25 Part 1˖˖Introduction This product is a new generation module, It is based on USB interface, accord with Wifi wireless network standard embedded module, the built-in wireless network protocol IEEE802.11 protocol stack, and TCP/IP protocol stack, save electricity intelligent control procedures , realize the user serial data to the wireless network conversion between. The entire module needs a power supply of 3.3 volt, and it has two Antenna(integral antenna and PCB antenna) to use for a different product. But it isn’t a MIMO equipment. Both of the antenna was used independent. When the customer need a PCB antenna, and the integral antenna will be take out, vise versa. Through the Wifi module, the traditional serial equipment also can easily access wireless network. gInterface˖PIN gPower supply voltage: +3.3V gWireless Features: -- Compatible completely with IEEE 802.11 a/b/g/n standards -- Compliant to IEEE 802.11 a/b/g/n Wireless LAN Standard -- Channel frequency: 2412-2462MHz for 802.b/g/11n H20 mode ; 2422-2452MHz for 802.11n H40 mode -- 802.11b/802.11g /802.11n(HT20): 11channels 802.11(HT40): 7channels gExternal Antenna can choose miniature coaxial connector˄U.FL˅type gOthers: -- Supports many kinds of network protocols: TCPǃUDPǃDHCPǃICMPǃ DNS etc -- Supports USB transmission mode -- Can provide a user interface to set configuration parameters gApplication: Temperature controllerǃSmart meterǃHousehold applianceǃ remote controlǃSecurity ProductsǃToy, and other IOT industry(sunch as retail business and medical care etc).  Part 2˖Product Description This part comprehensively introduces hardware interface and product function of the WIFI module, in this way can help user to the familiar with using the WIFI module quickly and efficiently, and can start using it sooner. Module Interface : Standard 2.54 PIN System Interface: can using socket or connection terminal mode WIFI Module Top View of 3.3 volt, and the product has integral antenna and alternative PCB antenna to use . But it isn't a MIMO equipment. Both of the antenna was used independent. When the customer need a PCB antenna, and the integral antenna will be take out, vise versa.  WIFI Module Bottom View  WIFI module Size and PIN Description WIFI Module Bottom View (copper covered)    NoPin nameDescription 1LEDIt is connected to an external LED to show the module operating status 2GNDGround 3D+USB Data + 4D-USB Data ̢ 5VCC3.3V 6WPSIt is connected to an external push button to activate WPS.  Antenna  Antenna Information˖ IPX antenna interfaceˈthrough miniature coaxial connector˄U.FL or IPEX˅connection to WIFI module 2.4GHzWIFI antenna L=145mm FCC statement 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC Radiation Exposure Statement The modular can be installed or integrated in mobile or fix devices only. This modular cannot be installed in any portable device, for example, USB dongle like transmitters is forbidden. This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This modular must be installed and operated with a minimum distance of 20 cm between the radiator and user body. If the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID: ROWCDT-H18188E-NX Or Contains FCC ID: ROWCDT-H18188E-NX ” when the module is installed inside another device, the user manual of this device must contain below warning statements; Integral antenna: 2.0dBi PCB Antenna: 0dBi Integral antenna PCB Antenna This product has integral antenna and alternative PCB antenna to use . But it isn't a MIMO equipment. Both of the antenna was used independent. When the customer need a PCB antenna, and the integral antenna will be take out, vise versa. 1. 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. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The devices must be installed and used in strict accordance with the manufacturer's instructions as described in the user documentation that comes with the product

Cover Letter(s)

CHINA DRAGON TECHNOLOGY LIMITED B4 Bidg.haosan No.1 lndustry Park,Shajing street,B Shenzhen, China DATE :2015-4-03 Nemko Canada Inc 303 River Road Ottawa, Ontario, Canada K1V 1H2 Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint Hank.Yan of Global United Technology Services Co., Ltd. 2nd Floor, Block No.2, Laodong Industrial Zone, Xixiang Road Baoan District Shenzhen Guangdong to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko Canada Inc, still resides with CHINA DRAGON TECHNOLOGY LIMITED and B4 Bidg.haosan No.1 lndustry Park,Shajing street,B Shenzhen, China Dated this / Day of 4/03/2015 / Agency agreement expiration date: 4/03/2016 By: Xiaodong Liu Signature Printed Title: On behalf of : CHINA DRAGON TECHNOLOGY LIMITED Telephone: 15013625234

Cover Letter(s)

Declaration To whom concern, We company CHINA DRAGON TECHNOLOGY LIMITED hereby declares: The product model(s) CDT-XX8188X-XX, FCC ID: ROWCDT-H18188E-NX, which tested in Global Unit Technology Co., Ltd. has two antennas (integral antenna and alternative PCB antenna), both of the antennas were used independent. When the customer needs a PCB antenna then the integral antenna will not be equipped or disabled, vise versa. Authorized signature: Date: 2015-04-20

Cover Letter(s)

Product conformance statement The conformity of WIFI module CDT-XX8 188X-XX as follows: (The first X stands for product type, from the letter A to Z; the second X stands for dimension of product, from number 0 to 9, the third X stands for version of product, froin the letter A to Z; the last two XXs stand for the cycle of product., from the letter AA to ZZ) The PCB, schematic, circuit diagram of the module CDT-XX8188X-XX, are the same, difference lies in the dimension, color and production cycle of PCB. China Dragon Technology Limited signature: 3fl &$,

Cover Letter(s)

Modular approval Declaration letter We ,CHINA DRAGON TECHNOLOGY LIMITED, apply single modular approval for Product Name: WIFI Module Model: CDT-XX8188X-XX FCC ID: ROWCDT-H18188E-NX According to KDB 996369 D01 Module Equip Auth Guide v01r04 and 15.212 requirement: 1) The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly; Answer: YES, both sides were shielded 2) The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal; Answer: Yes, all inputs to the modules are buffered through logic or microprocessor inputs. 3) The modular transmitter must have its own power supply regulation. Answer: Yes, a low drop out regulator is used for modular power supply regulation. 4) The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per Sections FCC part 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b); Answer: Yes. Device is equipped with integral antenna and alternative PCB antenna. (Please refer to antenna declaration) (5) The module must demonstrate compliance in a stand-alone configuration; Answer: YES, distance between modular and all AEs are More than 10cm, please refer to setup photo. (6) The module must be labelled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labelling requirements); Answer: Yes. The modular has a permanent fixed label, and below statement was listed in the User Manual ;The host device must be labelled to display the FCC ID of the module Contains FCC ID: ROWCDT-H18188E-NX (7) The module must comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee; Answer: Yes. The module comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee, Refer to test report and user manual . (8) The module must comply with RF exposure requirements Answer: Yes. Transmitter meets MPE calculation of 47 CFR 1.1307. Refer to MPE Reports and Refer to modular installation manual 2015-4-17

Cover Letter(s)

CHINA DRAGON TECHNOLOGY LIMITED B4 Bidg.haosan No.1 lndustry Park,Shajing street,B Shenzhen, China 2015-4-03 Equipment Authori zation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID : ROWCDT-H18188E-NX Product Name: WIFI Module Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: • Schematics • Block diagram • Operational Description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Dated this 4/03/2015 By: Xiaodong Liu Signature Printed Title: On behalf of : CHINA DRAGON TECHNOLOGY LIMITED Telephone: 15013625234

ID Label/Location Info

Label: WIFI Module Item:CDT- H18188E-NX FCC ID:ROWCDT-H18188E-NX Made in China Label location: Label location:

RF Exposure Info

FCC ID: ROWCDT-H18188E-NX RF Exposure Evaluation Limits The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio 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/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f 2 ) 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 1.34–30 824/f 2.19/f *(180/f 2 ) 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 Friis transmission formula: Pd = (Pout*G)/(4*pi*r 2 ) Where Pd = power density in mW/cm 2 , 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 Pd id the limit of MPE, 1 mW/cm 2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. Test Result of RF Exposure Evaluation The maximum rated power is 18dBm, so the RF Exposure Evaluation is below: Maximum power to antenna (dBm) Maximum power to antenna (mW) Antenna Gain (dBi) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result 18.00 63.096 2.0 0.01989 1.0 PASS

Test Report

Global United Technology Services Co., Ltd. Report No.: GTSE15030032501 Authorized Signature: Robinson Lo Laboratory Manager This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product and does not permit the use of the GTS product certification mark. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in this report. This report may only be reproduced and distributed in full. If the product in this report is used in any configuration other than that detailed in the report, the manufacturer must ensure the new system complies with all relevant standards. Any mention of GTS or testing done by GTS in connection with, distribution or use of the product described in this report must be approved by GTS in writing. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only. FCC Report (WIFI) Applicant: CHINA DRAGON TECHNOLOGY LIMITED Address of Applicant: B4 Bidg.haosan No.1 lndustry Park,Shajing street,B Shenzhen, China Equipment Under Test (EUT) Product Name: WIFI Module Model No.: CDT-XX8188X-XX(The first X stands for product type, from the letter A to Z; the second X stands for dimension of product, from number 0 to 9; the third X stands for version of product, from the letter A to Z; the last two XX stand for the cycle of product, from the letter AA to ZZ) FCC ID: ROWCDT-H18188E-NX Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247:2014 Date of sample receipt: March 27, 2015 Date of Test: March 27-31, 2015 Date of report issued: March 31, 2015 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. March 29-31, 2015 Report No.: GTSE15030032501 Global United Technology Services Co., Ltd. Project No.: GTSE150300325RF Room 301-309, 3th Floor, Block A, Huafeng Jinyuan Business Building, No. 300 Laodong Industrial Zone,Xixiang Road, Baoan District, Shenzhen 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 56 2 Version Version No. Date Description 00 March 31, 2015 Original Prepared By: Date: March 31, 2015 Project Engineer Check By: Date: March 31, 2015 Reviewer Report No.: GTSE15030032501 Global United Technology Services Co., Ltd. Project No.: GTSE150300325RF Room 301-309, 3th Floor, Block A, Huafeng Jinyuan Business Building, No. 300 Laodong Industrial Zone,Xixiang Road, Baoan District, Shenzhen 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 56 3 Contents Page 1 COVER PAGE ...........................................................................................................................................1 2 VERSION .................................................................................................................................................. 2 3CONTENTS .............................................................................................................................................. 3 4TEST SUMMARY ..................................................................................................................................... 4 5GENERAL INFORMATION ...................................................................................................................... 5 5.1CLIENT INFORMATION......................................................................................................................... 5 5.2GENERAL DESCRIPTION OF EUT ......................................................................................................... 5 5.3TEST MODE........................................................................................................................................ 6 5.4DESCRIPTION OF SUPPORT UNITS....................................................................................................... 6 5.5TEST FACILITY.................................................................................................................................... 7 5.6TEST LOCATION................................................................................................................................. 7 6TEST INSTRUMENTS LIST ..................................................................................................................... 8 7TEST RESULTS AND MEASUREMENT DATA...................................................................................... 9 7.1ANTENNA REQUIREMENT..................................................................................................................... 9 7.2CONDUCTED EMISSIONS................................................................................................................... 10 7.3CONDUCTED PEAK OUTPUT POWER.................................................................................................. 13 7.4CHANNEL BANDWIDTH...................................................................................................................... 14 7.5POWER SPECTRAL DENSITY............................................................................................................. 19 7.6BAND EDGES.................................................................................................................................... 24 7.6.1Conducted Emission Method ..................................................................................................... 24 7.6.2Radiated Emission Method ..........................................................................................…

Text truncated - open the document above for the full version.

Test Setup Photos

Radiated Emission Conducted Emission

Contact Information

Applicant

Song xiaoyue
[email protected]13510082761Fax: 0755-81449967

Test Firm

Global United Technology Service Co., LtdRobinson Lo
[email protected]86-755-27798480Fax: 86-755-2779860

Technical Specifications

#Rule PartsFrequency RangePower Output
115C2.41 GHz - 2.46 GHz61.24 mW
Modular Type
Single Modular Approval
Confidentiality
Long Term
Grant Notes
Single modular approval. Power output listed is conducted. This device has a 20 MHz and 40 MHz bandwidth mode. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other transmitter. OEM integrators must be provided with antenna installation instructions. OEM integrators and end-users must be provided with transmitter operation conditions for satisfying RF exposure compliance.

Other Applications from CHINA DRAGON TECHNOLOGY LIMITED

WLAN 802.11b/g/n/ax UART 1T1R + BT 5.0 module - FCC ID ROW-W691612A-00 - CHINA DRAGON TECHNOLOGY LIMITED
ROW-W691612A-00

WLAN 802.11b/g/n/ax UART 1T1R + BT 5.0 module

Jul 16, 2026

Equipment Class

DTS - Digital Transmission System
60G Radar module - FCC ID ROWR2 - CHINA DRAGON TECHNOLOGY LIMITED
ROWR2

60G Radar module

Apr 22, 2026

Equipment Class

FDS - Part 15 Field Disturbance Sensor
WiFi Module - FCC ID ROW-CDW69868500 - CHINA DRAGON TECHNOLOGY LIMITED
ROW-CDW69868500

WiFi Module

Mar 12, 2024

Equipment Class

DTS - Digital Transmission System
Wi-Fi Module - FCC ID ROW-CDWU96600A00 - CHINA DRAGON TECHNOLOGY LIMITED
ROW-CDWU96600A00

Wi-Fi Module

Sep 19, 2023

Equipment Class

DTS - Digital Transmission System
WiFi Module - FCC ID ROW-E3ESP3200 - CHINA DRAGON TECHNOLOGY LIMITED
ROW-E3ESP3200

WiFi Module

Mar 21, 2022

Equipment Class

DTS - Digital Transmission System