{"product_id":"long-range-rf-link-kits-with-encoder-and-decoder-2-km","title":"Long Range RF link Kits with Encoder and Decoder - 2 km","description":"\u003cmeta name=\"description\" content=\"Buy Long Range RF link Kits with Encoder and Decoder - 2 km online in India at best price from The Engineer Store, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\n\u003ch1\u003eLong Range RF link Kits with Encoder and Decoder - 2 km\u003c\/h1\u003e\n\n\u003cp\u003eThis Long Range RF link Kit is a complete wireless communication solution featuring integrated encoder and decoder modules capable of transmitting control signals up to 2 kilometers with stable connectivity. Professional engineers and hobbyists use these kits for remote automation projects, IoT applications, drone control systems, and industrial wireless monitoring where extended range and reliable data transmission are critical requirements. It solves the challenge of establishing secure, long-distance wireless communication without complex network infrastructure or expensive licensed frequency bands.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Long Range RF link Kit operates on proven ASK (Amplitude Shift Keying) modulation technology, utilizing the 433 MHz ISM band for unlicensed transmission across 2 kilometers in open-field conditions. The encoder module converts digital signals into RF-modulated format for transmission, while the decoder module receives and demodulates these signals back into digital output, enabling bidirectional control. The kit includes matched transmitter and receiver pairs with optimized antenna designs that maximize signal propagation while minimizing interference from environmental obstacles and competing RF sources.\u003c\/p\u003e\n\n\u003cp\u003eThis model stands out through its exceptional range-to-power ratio, consuming minimal current from standard power supplies while maintaining consistent signal integrity across extended distances. The integrated latch functionality allows the decoder to maintain output states even after signal loss, critical for safety-critical applications. Pre-tuned LC circuits eliminate the need for frequency calibration, reducing deployment time and ensuring immediate functionality upon installation. The modular design permits easy integration into microcontroller projects via standard digital I\/O pins, making it ideal for both prototype development and production-grade implementations.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eLong Range RF Wireless Link Kit with Encoder and Decoder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGeneric\/OEM Original\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 days on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003e1-5 days from Bengaluru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003e7-8 days across India\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003e24\/7 via Email and WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Frequency\u003c\/td\u003e\n\u003ctd\u003e433 MHz ISM Band\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Range\u003c\/td\u003e\n\u003ctd\u003e2 km (open field, line of sight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModulation Type\u003c\/td\u003e\n\u003ctd\u003eASK (Amplitude Shift Keying)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaud Rate\u003c\/td\u003e\n\u003ctd\u003e1200 bps to 9600 bps configurable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e5V DC (encoder and decoder)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003eTransmitter: 40 mA, Receiver: 5 mA standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Pin Configuration\u003c\/td\u003e\n\u003ctd\u003e4-channel digital output on decoder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna Type\u003c\/td\u003e\n\u003ctd\u003e1\/4 wave monopole included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eExtended 2 km transmission range in open-field conditions with optimized antenna design for maximum signal propagation and minimal path loss\u003c\/li\u003e\n\u003cli\u003eIntegrated encoder module converts 4-channel digital logic signals into modulated RF signals compatible with standard wireless protocols\u003c\/li\u003e\n\u003cli\u003eMatched decoder module with latch functionality maintains output state even after signal interruption, ensuring fail-safe operation in critical control applications\u003c\/li\u003e\n\u003cli\u003eLow power consumption with 5 mA standby current on receiver module, ideal for battery-powered remote monitoring and portable IoT devices\u003c\/li\u003e\n\u003cli\u003eSimple digital I\/O interface compatible with Arduino, Raspberry Pi, and microcontroller platforms without requiring specialized communication protocols\u003c\/li\u003e\n\u003cli\u003ePre-tuned LC circuits eliminate frequency calibration requirements, reducing commissioning time from hours to minutes\u003c\/li\u003e\n\u003cli\u003eOperating on unlicensed 433 MHz ISM band globally, eliminating regulatory licensing costs and enabling worldwide deployment\u003c\/li\u003e\n\u003cli\u003eConfigurable baud rates from 1200 to 9600 bps allowing optimization for different data transmission requirements and noise immunity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemote gate and door control systems in residential properties and commercial facilities using wireless RF signals to activate electric locks and solenoid mechanisms\u003c\/li\u003e\n\u003cli\u003eAgricultural automation for remotely controlling irrigation pumps, greenhouse ventilation systems, and livestock monitoring across farm properties spanning multiple hectares\u003c\/li\u003e\n\u003cli\u003eIndustrial wireless emergency stop systems for machinery control where hardwired connections are impractical, meeting safety standards for remote shutdown capability\u003c\/li\u003e\n\u003cli\u003eDrone and quadcopter flight control systems utilizing the encoder-decoder pair for stable long-range command transmission and telemetry feedback\u003c\/li\u003e\n\u003cli\u003eHome automation projects integrating multiple RF receivers to control lighting, fans, and appliances from centralized wireless remote control panels\u003c\/li\u003e\n\u003cli\u003eWeather station data collection where remote sensor nodes transmit temperature, humidity, and pressure readings back to a central monitoring station\u003c\/li\u003e\n\u003cli\u003eWireless alarm and security systems for detecting unauthorized access in remote locations and transmitting alerts across extended distances\u003c\/li\u003e\n\u003cli\u003eRC vehicle and robot control applications requiring reliable bidirectional communication between operator console and mobile platform across 2 km range\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eBegin by connecting the encoder module to your control source such as a microcontroller or digital logic circuit. Apply 5V DC power to the encoder VCC pin and ground, then connect your control signals to the four input pins. Each input pin corresponds to one output channel on the decoder. Connect the included antenna to the ANT pin on the encoder module, ensuring it extends vertically for optimal radiation pattern. The transmitter will immediately begin broadcasting your control signals on the 433 MHz frequency.\u003c\/p\u003e\n\n\u003cp\u003eFor the receiver side, connect the decoder module to your load circuits such as relay drivers, LED indicators, or motor control circuits. Apply 5V DC power to the decoder and connect the four output pins to your respective load control circuits. Attach the antenna to the decoder ANT pin. The decoder will automatically latch the last received signal state, maintaining output levels even during signal loss. Test the system by sending control signals from the encoder and observing the corresponding output changes on the decoder. For maximum range, position antennas vertically and ensure line-of-sight between transmitter and receiver, avoiding metal obstacles that cause signal attenuation.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the actual transmission range in real-world conditions?\u003c\/summary\u003e\n\u003cp\u003eThe specified 2 km range applies to open-field line-of-sight conditions with minimal obstacles. In urban environments with buildings and metal structures, expect 500-800 meters. Range varies with antenna orientation, power supply voltage stability, and RF interference from nearby devices. Using external high-gain antennas can extend practical range to 3-4 km in favorable conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this kit for bidirectional communication?\u003c\/summary\u003e\n\u003cp\u003eThis standard kit provides unidirectional communication from encoder to decoder. For bidirectional control, you need two complete kits configured with one set transmitting control commands and the second set transmitting feedback signals. Alternatively, use dedicated bidirectional RF modules like nRF24L01 for simultaneous two-way communication on a single frequency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I integrate this with Arduino or Raspberry Pi?\u003c\/summary\u003e\n\u003cp\u003eConnect the encoder input pins to Arduino digital output pins and configure them as OUTPUT mode. Use digitalWrite() commands to control transmission. For the decoder, connect output pins to Arduino digital input pins configured as INPUT mode and read states using digitalRead(). The decoder automatically latches signals, so you can poll output states at any time. Sample Arduino code is available in our technical documentation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat frequency does this kit operate on and is it legal in India?\u003c\/summary\u003e\n\u003cp\u003eThis kit operates on 433 MHz, which is part of the unlicensed ISM band globally including India, allowing free operation without WPC licensing. However, transmit power must comply with local regulations typically limiting to 10 mW EIRP. This kit meets Indian standards and can be legally deployed for non-commercial applications.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhy is my range significantly less than 2 km?\u003c\/summary\u003e\n\u003cp\u003eCommon causes include antenna misalignment, RF interference from nearby WiFi or mobile towers, poor power supply voltage, metal obstacles blocking line-of-sight, and damaged antenna connections. Verify 5V supply voltage stability, check antenna connections for corrosion, reorient antennas vertically, and test in open areas away from buildings. Replace antennas if damaged or bent.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use multiple encoders with one decoder?\u003c\/summary\u003e\n\u003cp\u003eMultiple encoders cannot transmit simultaneously on the same frequency as they will cause signal collision and corruption. However, you can implement time-division multiplexing by programming each encoder to transmit during specific time slots, or use frequency-hopping techniques. For applications requiring multiple independent transmitters, implement a priority arbitration system or use separate decoder units for each encoder.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eOrders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return and warranty policy?\u003c\/summary\u003e\n\u003cp\u003eWe offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eWhy Buy from The Engineer Store\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Products: Sourced directly from authorized distributors with authentication\u003c\/li\u003e\n\u003cli\u003eExpert Team: Our technical team validates every product before listing\u003c\/li\u003e\n\u003cli\u003eFast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003ePan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata\u003c\/li\u003e\n\u003cli\u003ePayment Options: COD, UPI, credit\/debit cards, net banking, EMI available\u003c\/li\u003e\n\u003cli\u003eTechnical Support: 24\/7 expert guidance via email and WhatsApp\u003c\/li\u003e\n\u003cli\u003eReturns: 7-day return policy on manufacturing defects only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuy Long Range RF link Kits with Encoder and Decoder - 2 km Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eLong Range RF link Kits with Encoder and Decoder - 2 km\u003c\/strong\u003e online at \u003ca href=\"https:\/\/theengineerstore.in\"\u003eThe Engineer Store\u003c\/a\u003e, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eLong Range RF link Kits with Encoder and Decoder - 2 km\u003c\/strong\u003e with fast shipping and expert support.\u003c\/p\u003e\n\u003cp\u003eOur team in Bengaluru is available 24\/7 to support your journey from product selection to project completion.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":43853744308387,"sku":"TES-EV02311","price":2053.22,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/4479\/7091\/products\/2kmrf-228x228.jpg?v=1704191141","url":"https:\/\/www.theengineerstore.in\/zh-hant\/products\/long-range-rf-link-kits-with-encoder-and-decoder-2-km","provider":"The Engineer Store","version":"1.0","type":"link"}