# DREAMLNK > DreamLNK is a professional RF Module supplier, who is specialized in IOT products for years, with many products CE, FCC, ROHS, and RTTE certified! Product range covers not only 433MHz RF modules, 2.4G modules, Bluetooth modules, Lora modules, but also relative IOT products, such as antenna, remote control, smoke detector, door/window sensors, etc. ## Contact Us - [Mail](mailto:james@dreamlnk.com): james@dreamlnk.com - [Skype](skype:wsj.james?chat): wsj.james - [WhatsApp](https://api.whatsapp.com/send?phone=8613760215716): 8613760215716 - [QQ](https://wpa.qq.com/msgrd?v=3&uin=18394971): 18394971 ## Website Language Versions - [English](https://www.iot-rf.com): Professional RF Module Supplier and One-stop IOT Solution Provider! - DREAMLNK - [Chinese](https://cn.dreamlnk.tw.ldyjz.com): IoT物联网射频核心部件提供商,2.4G模块,UART串行,Lora,FSK,ASK,蓝牙,WiFi模块等– 深圳市骏晔科技有限公司 ## Website Navigation - [About Us](http://www.iot-rf.com/company-profile.html): About Us - [Company Profile](https://www.iot-rf.com/company-profile.html): Company Profile - [Certificate](https://www.iot-rf.com/Certificate.html): Certificate - [Advantages](https://www.iot-rf.com/Advantage.html): Advantages - [History](https://www.iot-rf.com/History.html): History - [Products](https://www.iot-rf.com/products.html): Products - [UART Module](https://www.iot-rf.com/UART-Serial-Modules-pl3194934.html): UART Module - [FSK Module](https://www.iot-rf.com/FSK-Transceiver-Modules-pl3094934.html): FSK Module - [2.4G Module](https://www.iot-rf.com/2-4Ghz-RF-Modules-pl3994934.html): 2.4G Module - [ASK Module](https://www.iot-rf.com/ASK-TX-RX-Modules-pl3894934.html): ASK Module - [BLE Module](https://www.iot-rf.com/Bluetooth-Modules-pl3484934.html): BLE Module - [LoRa Module](https://www.iot-rf.com/Sub-1Ghz-LoRa-Modules-pl3284934.html): LoRa Module - [ChirpIoT Module](https://www.iot-rf.com/ChirpIoT-Modules-pl3147458.html): ChirpIoT Module - [Antenna](https://www.iot-rf.com/Antennas-pl3684934.html): Antenna - [Remote Control](https://www.iot-rf.com/Remote-Controllers-pl3784934.html): Remote Control - [Doorbell](https://www.iot-rf.com/Doorbell-pl3762504.html): Doorbell - [Door Sensor](https://www.iot-rf.com/Window-Door-Sensor-pl3462504.html): Door Sensor - [PIR Detector](https://www.iot-rf.com/PIR-Detector-pl3562504.html): PIR Detector - [Smoke Detector](/): Smoke Detector - [Radar Sensor](https://www.iot-rf.com/Human-Presence-Sensor-pl48286197.html): Radar Sensor - [Demo Board](https://www.iot-rf.com/Development-Kits-pl3584934.html): Demo Board - [Smart Life](https://www.iot-rf.com/smart-life.html): Smart Life - [Door Sensor](https://www.iot-rf.com/smart-life-window-door-sensor.html): Door Sensor - [PIR Detector](https://www.iot-rf.com/smart-life-pir-motion-detector.html): PIR Detector - [Smoke Detector](https://www.iot-rf.com/smart-life-smoke-detector.html): Smoke Detector - [Water Detector](https://www.iot-rf.com/smart-life-water-detector.html): Water Detector - [Doorbell](https://www.iot-rf.com/smart-life-doorbell.html): Doorbell - [Remote Control](https://www.iot-rf.com/smart-life-remote-control.html): Remote Control - [Radar Sensor](https://www.iot-rf.com/radar-sensor-smart-life.html): Radar Sensor - [Solutions](https://www.iot-rf.com/applications.html): Solutions - [Industry Control](https://www.iot-rf.com/wireless-industrial-controller-solutions.html): Industry Control - [Smart Meters](https://www.iot-rf.com/smart-meters.html): Smart Meters - [Medical Facility](https://www.iot-rf.com/medical-facility.html): Medical Facility - [Smart Closetool](https://www.iot-rf.com/ble-intelligent-closestool.html): Smart Closetool - [Integrated Kitchen](https://www.iot-rf.com/development-of-integrated-kitchen.html): Integrated Kitchen - [LoRa Application](https://www.iot-rf.com/lora-remote-control-solution.html): LoRa Application - [Access Control](https://www.iot-rf.com/visual-access-control-solution.html): Access Control - [Smart Hotel](https://www.iot-rf.com/smart-hotel-remote-control-system.html): Smart Hotel - [2.4G RF for CT](https://www.iot-rf.com/2-4g-rf-module-ct.html): 2.4G RF for CT - [Door Sensors](https://www.iot-rf.com/window-door-sensor-for-covid-19.html): Door Sensors - [IoT Remote Control](https://www.iot-rf.com/industrial-remote-control-solutions.html): IoT Remote Control - [Gateway Suite](https://www.iot-rf.com/chirplan-wireless-gateway-suite.html): Gateway Suite - [Support](http://www.iot-rf.com/technical-support.html): Support - [Model Selection](https://www.iot-rf.com/technical-support.html): Model Selection - [F.A.Q.](https://www.iot-rf.com/faqlist.html): F.A.Q. - [Download](https://www.iot-rf.com/download.html): Download - [Video](https://www.iot-rf.com/video.html): Video - [News](https://www.iot-rf.com/new-center.html): News - [Contact](https://www.iot-rf.com/contactus.html): Contact ## Product Category - [FSK Transceiver Modules](https://www.iot-rf.com/FSK-Transceiver-Modules-pl3094934.html): FSK Transceiver Modules - [Sub-1Ghz LoRa Modules](https://www.iot-rf.com/Sub-1Ghz-LoRa-Modules-pl3284934.html): Sub-1Ghz LoRa Modules - [UART Serial Modules](https://www.iot-rf.com/UART-Serial-Modules-pl3194934.html): UART Serial Modules - [Bluetooth Modules](https://www.iot-rf.com/Bluetooth-Modules-pl3484934.html): Bluetooth Modules - [2.4Ghz RF Modules](https://www.iot-rf.com/2-4Ghz-RF-Modules-pl3994934.html): 2.4Ghz RF Modules - [ASK TX/RX Modules](https://www.iot-rf.com/ASK-TX-RX-Modules-pl3894934.html): ASK TX/RX Modules - [ChirpIoT Modules](https://www.iot-rf.com/ChirpIoT-Modules-pl3147458.html): ChirpIoT Modules - [Antennas](https://www.iot-rf.com/Antennas-pl3684934.html): Antennas - [Rubber Rod Antennas](https://www.iot-rf.com/Rubber-Rod-Antennas-pl3423933.html): Rubber Rod Antennas - [Chuck Antennas](https://www.iot-rf.com/Chuck-Antennas-pl3723933.html): Chuck Antennas - [Spring Antennas](https://www.iot-rf.com/Spring-Antennas-pl3833933.html): Spring Antennas - [FPC/PCB Antennas](https://www.iot-rf.com/FPC-PCB-Antennas-pl3323933.html): FPC/PCB Antennas - [GPS Antennas](https://www.iot-rf.com/GPS-Antennas-pl3713933.html): GPS Antennas - [Patch Antennas](https://www.iot-rf.com/Patch-Antennas-pl3123933.html): Patch Antennas - [Fiber-glass Antennas](https://www.iot-rf.com/Fiber-glass-Antennas-pl3379522.html): Fiber-glass Antennas - [Copper Tube Antennas](https://www.iot-rf.com/Copper-Tube-Antennas-pl3613933.html): Copper Tube Antennas - [Silver-plated Wire](https://www.iot-rf.com/Silver-plated-Wire-pl3023933.html): Silver-plated Wire - [Extension Cable](https://www.iot-rf.com/Extension-Cable-pl3513933.html): Extension Cable - [SMA Connectors](https://www.iot-rf.com/SMA-Connectors-pl3827422.html): SMA Connectors - [MMCX Connectors](https://www.iot-rf.com/MMCX-Connectors-pl3353441.html): MMCX Connectors - [Development Kits](https://www.iot-rf.com/Development-Kits-pl3584934.html): Development Kits - [Remote Controllers](https://www.iot-rf.com/Remote-Controllers-pl3784934.html): Remote Controllers - [Window/Door Sensor](https://www.iot-rf.com/Window-Door-Sensor-pl3462504.html): Window/Door Sensor - [PIR Detector](https://www.iot-rf.com/PIR-Detector-pl3562504.html): PIR Detector - [Doorbell](https://www.iot-rf.com/Doorbell-pl3762504.html): Doorbell - [Human Presence Sensor](https://www.iot-rf.com/Human-Presence-Sensor-pl48286197.html): Human Presence Sensor ## FAQ - **Q: 影响ASK发射接收控制的因素** A: 1. 频点： 发射和接收均要在相同的频点， 比如433M，315M, 390M, 868M, 915M等等， 如：发射端是433M， 接收端是315M，则不能控制； 2. 编解码方式： 一般来说， ASK的编解码方式为两种， 固定码（最常见的有PT2260,2262, HS2260,2262等， 芯片厂家不一样， 芯片前缀也不同）；学习码（EV1527， HS1527芯片， 或者MCU写的百万组学习码），需要正常控制， 先需要了解清楚编解码方式； 3. 周期：用MCU写的接收模块，学习码宽周期为1.56ms（±20%），可以用示波器能抓取数据， 无论确认了发射和接收任何一边， 另一边都需要调整震荡电阻的阻值来进行匹配； 4. 码值：不同厂家的码值定义不一样， 不是所有外观相同的遥控器的码值都是一样的， 这个有两种方式， 第一， 用示波器去抓取发射端的码值， 接收端解码的时候根据发射端的码值来定义；第二，跟厂家联系，来进行码值的修改；   综上所述， 影响ASK 通讯的因素， 我们没有办法确定是发射还是接收的问题，因为发射和接收是一对组合拳，我们强调的是 匹配 ， 不论是控制， 还是距离， 都强调的是匹配，固定了一端， 就来匹配另外一端的编解码方式， 周期，码值…..来达到组合的最佳效果。