FCCID.CO- FCC ID Database
HomeCompaniesEquipment ClassesSearch

© 2026 FCC ID Database. All rights reserved.

AboutContactData sourced from FCC public records
  1. Home/
  2. Wellgain Auto Technology Co.Ltd/
  3. YASTX201

YASTX201Tire Pressure Monitoring Systems

Wellgain Auto Technology Co.Ltd
Tire Pressure  Monitoring Systems - FCC ID YASTX201 - Wellgain Auto Technology Co.Ltd
Click to zoom

Application Details

Equipment Class
DSC - Part 15 Security/Remote Control Transmitter
Date of Grant
Apr 03, 2011
Application Purpose
Original Equipment
Date of Application
Apr 03, 2011
Equipment Note
Tire Pressure Monitoring Systems
Frequency Range
433.92000000 - 433.92000000
Company
Wellgain Auto Technology Co.Ltd
Country
China

Documents & Files

Select a file to view

Users Manual

↗

Block Diagram

↗

External Photos

↗

ID Label/Location Info

↗

Internal Photos

↗

Operational Description

↗

Schematics

↗

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

User's Manual Tire Pressure Monitoring System TPMS 02 FOREWORDINTRODUCTIONOPERATIONINSTALLATIONTECHNICAL SPECIFICATIONSSERVICE AND WARRANTYWARRANTY CARD 03 04 1 6 20 21 24 01 CONTENTS Sensors 4 Receiver 1 Double-side t ape 1 User Manual 1 Wrench 1 Charger 1 Anti-theft Nozzle 4 Packing List Please make sure that your product includes all the following itemsIn case of short of any items please contact your distributor for consultation : , . Thank you for buying our automobile tire pressure monitoringsystem This product can be used for light vehicle with tire pressure under 35Bar For a safe and correct use of it please read this manual first .; , . INTRODUCTION 03 02 FOREWORD Three different inflation condition of tire A. ormal n B. low pressure C. high pressure According to statistics , about 70% of all traffic accidents are caused by tire blowout , while the figure would be higher to 80% . The statistics of SAE shows that there are over 260000 accidents caused by tire fault , and about 75% tire fault is caused by low pressure or leak . NHTSA in US develop a project which require all vehicles with gross weight less than 4500 Kg should be installed TPMS product .It is because long time driving under abnormal tire pressure or temperature that rubbing abrasion of tire become rapid to cause tire blowout . The aim of TPMS is to notice the driver to keep tires in correct condition when driving. Just as the figures showed below , figure B and C result in stress centralization that is makes the tire sho ulde r be a brad ed ra pidly if u nde r lo w p ressu re c ond itio n while the centre part be abraded rapidly if under high pressure. This product belongs to Pressure-Sensor Based TPMS . The sensor is mounted as valve cap to measure the pressure and temperature . The tire is monitored all the time, and our product can send alarm information to driver to tell the emergency of improper pressure or temperature when it is under abnormal condition.The driver can keep the tire in good condition after having this product , thus the tire life can be extended.The driver can avoid increasing the braking distance and making the auto sideslip on wet road with this product.Gas saving is another important benefit to customers if using this product. This product makes you drive safely . If there’s any abnormal, it can send the message immediately including the value of the pressure and temperature , which makes you drive reliably. Our TPMS product uses reliable integrated circuit, according diffusible silicon sensing principle and RF communication principle, which makes the product perform well, easy to install and work stably. This type product is one of the most advanced TPMS products in the world. OPERATION 05 3. The Power Saving Mode:Power Saving Mode: system will be in power saving mode automatically when the receiver hasn’t detected any vibration in 30 minutes.Status of Power Saving mode: The receiver doesn’t do anything except detecting vibration ( no display in screen ; back light off ; the receiver doesn’t receive any data sent from sensors) when it is in Power Saving mode.Resuming to normal operation mode : in case of any vibration detected by the receiver ,the receiver will return to the normal operation mode . 2. Power onWhen the receiver is turned on , the system starts self-checking . The LCD , LED and back light are on . The screen enters into initiate state as picture 1. The self-checking will be finished in three seconds. Picture 1 Picture 2 OPERATION 04 Up Key Enter Key Down Key DC 5V Switch 1. Key introduction Enter Key : confirm the settings. Up Key : set and increase. Down Key : set and decrease. Switch : to turn on /off the receiver. DC 5V : to be connected to the accompanied charger . This product can monitor the pressure and the temperature of each tire.It will warn the driver if any tire is abnormal A Set function to set the standard value of pressure, unit of pressure and temperature, high temperature threshold ; exchange sensors’ position; setup sensors.B) warning function: Low pressure warning, high pressure warning, leakagewarning, high temperature warning, low power of sensor warning, no signalwarning.  : OPERATION 07 Picture 3 Picture 4 06 4 Display interface . Receiver battery : to show current energy of the receiver battery. When the icon is flashing , it means low power for the receiver and the receiver must be charged by the charger in time. charging temperature: 0 45  - OPERATION Low power of sensor warning: the buzzer turns on for 6 beeps and red LED is on ; The icon of the warning tire and the icon of low power are flashing; the buzzer will stop buzzing if any key is pressed. The warning message of each tire will be displayed in turn if more than one tire is under abnormal condition . B) No signal warning: the buzzer turns on for 2 beeps and red LED is on; no pressure and temperature of the tire is displayed, the icon of the warning tire and the icon of “ no signal” are flashing; the buzzer will stop buzzing if any key is pressed. The warning message of each tire will be displayed in turn if more than one tire is under abnormal condition. 5. Value of tire pressure: to show the real-time tire pressure.Value of tire temperature: to show the real-time tire temperature.setup:S-P : to set the standard tire pressure.W-T : to set the tire high temperature threshold.L-C : to set up sensors.E-P : to exchange sensors positions in case of tire rotation. Value of tire pressure Set up Value of tire temperature Warnings Receiver battery 09 Picture 8 OPERATION Picture 7 OPERATION 08 Picture 5 Picture 6 C) Leakage warning: the buzzer turns on for 6 beeps and red LED is on; the icon of the warning tire and the icon of leaking are flashing; the buzzer will stop buzzer if any key is pressed. The warning message of each tire will be displayed in turn if more than one tire is under abnormal condition. D) Low pressure warning: the buzzer turns on for 6 beeps and red LED is on; the value of pres…

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

Block Diagram

WTTX201 Circuit Description Y1 13.56MHz

External Photos

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS EUT– Top View EUT– Bottom View EUT– Side View

ID Label/Location Info

EXHIBIT A - FCC ID LABELING AND LOCATION FCC ID Label FCC ID Label Location

Internal Photos

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS EUT - Cover off View EUT - Main Board TopView -1 EUT - Main Board Bottom View -1 Antenna EUT - Main Board TopView-2 EUT - Main Board BottomView -2 Battery View

Operational Description

Transmitter WTTX201 Circuit Description U2 NPX1, a built-MCU pressure sensor, when detected the pressure above1.4Bar, MCU let RF Transmitter work, and send detected air pressure data to RF Transmitter TDK5110F.TDK5110F is a FSK Transmitter, frequency range is 433.92-434.02MHz, and output power is 10dBm. Meanwhile, information was transmitted by antenna.

Schematics

1 2 34 ABCD 4 3 2 1 D CBA Title Number Revision Size B Date: 5-Mar-2011 Sheet of \ .dd b Drawn By: 1 IN4 2 P10 3 P11 4 MSDA 5 MSCL 6 VDD 7 NC 8 VSS 9 P17 10 P15 11 P14 12 IN1 13 IN2 14 IN3 U2 NPX1 Y1 13.56MHz C3 6P C43.9P R3 15K C23.9P L2 39NH C1 39P 433.92-434.02MHz ANT L1 100NH C6 102P BATT 3.0V CR1632 C8 22UF C12 102P WTTX201 1 COLK OUT 2 VDD 3 GND 4 FSKOUT 5 COSC 6 ASKDTA 7 FSKDTA 8 PAGND 9 PAOUT 10 PDWN U1 TDK5110F R4 4.7K C5 10P C11100P C10 22UF C9 22UF C7 22UF R2 10K TP 1 TP 2

Test Report

Note: This test report is prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP*, NIST, or any agency of the Federal Government. * This report contains data that are not covered by the NVLAP accreditation and are marked with an asterisk “★” (Rev.2) FCC PART 15.231 MEASUREMENT AND TEST REPORT For Wellgain Auto Technology Co., Ltd. Dongcheng Science & Technology Industrial Area, Dongke Road, Dong Cheng District, Dongguan City, Guangdong Province, P.R.C FCC ID: YASTX201 Report Type: Original Report Product Type: Tire Pressure Monitoring Systems(Transmitter) Test Engineer: Jimmy Xiao Report Number: RSZ11021651 Report Date: 2011-03-24 Reviewed By: Merry Zhao EMC Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F, the 3rd Phase of WanLi Industrial Building, ShiHua Road, FuTian Free Trade Zone Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 Wellgain Auto Technology Co., Ltd. FCC ID: YASTX201 Report No.: RSZ11021651 Page 2 of 17 FCC Part15.231 Test Report TABLE OF CONTENTS GENERAL INFORMATION.......................................................................................................................................3 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................................................3 OBJECTIVE...................................................................................................................................................................3 RELATED SUBMITTAL(S)/GRANT(S).............................................................................................................................3 TEST METHODOLOGY..................................................................................................................................................3 TEST FACILITY.............................................................................................................................................................3 SYSTEM TEST CONFIGURATION ..........................................................................................................................5 JUSTIFICATION.............................................................................................................................................................5 SPECIAL ACCESSORIES.................................................................................................................................................5 EQUIPMENT MODIFICATIONS.......................................................................................................................................5 CONFIGURATION OF TEST SETUP.................................................................................................................................5 BLOCK DIAGRAM OF TEST SETUP................................................................................................................................5 SUMMARY OF TEST RESULTS ...............................................................................................................................6 FCC §15.203 - ANTENNA REQUIREMENT.............................................................................................................7 APPLICABLE STANDARD..............................................................................................................................................7 FCC §15.205, §15.209 & §15.231 - RADIATED EMISSIONS ..................................................................................8 MEASUREMENT UNCERTAINTY....................................................................................................................................8 EUT SETUP..................................................................................................................................................................8 EMI TEST RECEIVER SETUP.........................................................................................................................................9 TEST EQUIPMENT LIST AND DETAILS...........................................................................................................................9 TEST PROCEDURE........................................................................................................................................................9 APPLICABLE STANDARD............................................................................................................................................10 CORRECTED AMPLITUDE & MARGIN CALCULATION.................................................................................................10 TEST RESULTS SUMMARY..........................................................................................................................................10 TEST DATA................................................................................................................................................................10 FCC §15.231(C) – 20 DB EMISSION BANDWIDTH..............................................................................................13 REQUIREMENT...........................................................................................................................................................13 TEST EQUIPMENT LIST AND DETAILS.........................................................................................................................13 TEST PROCEDURE......................................................................................................................................................13 TEST DATA......................................................................................................................…

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

Test Setup Photos

EXHIBIT D - TEST SETUP PHOTOGRAPHS Radiated Emission – Front View (Below 1 GHz) Radiated Emission – Rear View (Below 1 GHz) Radiated Emission – Front View (Above 1 GHz) Radiated Emission – Rear View (Above 1 GHz)

Contact Information

Applicant

Jingyun Liu(vice-president)
[email protected]+86-0769-88772888Fax: +86-0769--8772622

Test Firm

Bay Area Compliance Laboratory Corp. (Shenzhen)John Chan
[email protected]08675533320018Fax: 08675533320008

Technical Specifications

#Rule PartsFrequency RangePower Output
115.231(e)433.92 MHz - 433.92 MHz-

Other Applications from Wellgain Auto Technology Co.Ltd

Tire Pressure  Monitoring Systems - FCC ID YASRX003 - Wellgain Auto Technology Co.Ltd
YASRX003

Tire Pressure Monitoring Systems

Apr 03, 2011

Equipment Class

CYY - Communications Receiver used w/Pt 15 Transmitter
Tire Pressure Monitoring Systems (Receiver) - FCC ID YASRX001 - Wellgain Auto Technology Co.Ltd
YASRX001

Tire Pressure Monitoring Systems (Receiver)

Apr 15, 2010

Equipment Class

CYY - Communications Receiver used w/Pt 15 Transmitter
Tire Pressure Monitoring Systems (Transmitter) - FCC ID YASTX001 - Wellgain Auto Technology Co.Ltd
YASTX001

Tire Pressure Monitoring Systems (Transmitter)

Apr 15, 2010

Equipment Class

DSC - Part 15 Security/Remote Control Transmitter