24% off
Long Range RF link Kits with Encoder and Decoder - 2 km
This 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.
Product Overview
The 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.
This 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.
Key Specifications
| Specification | Details |
| Product Type | Long Range RF Wireless Link Kit with Encoder and Decoder |
| Brand | Generic/OEM Original |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Operating Frequency | 433 MHz ISM Band |
| Transmission Range | 2 km (open field, line of sight) |
| Modulation Type | ASK (Amplitude Shift Keying) |
| Baud Rate | 1200 bps to 9600 bps configurable |
| Operating Voltage | 5V DC (encoder and decoder) |
| Current Consumption | Transmitter: 40 mA, Receiver: 5 mA standby |
| Output Pin Configuration | 4-channel digital output on decoder |
| Antenna Type | 1/4 wave monopole included |
Key Features
- Extended 2 km transmission range in open-field conditions with optimized antenna design for maximum signal propagation and minimal path loss
- Integrated encoder module converts 4-channel digital logic signals into modulated RF signals compatible with standard wireless protocols
- Matched decoder module with latch functionality maintains output state even after signal interruption, ensuring fail-safe operation in critical control applications
- Low power consumption with 5 mA standby current on receiver module, ideal for battery-powered remote monitoring and portable IoT devices
- Simple digital I/O interface compatible with Arduino, Raspberry Pi, and microcontroller platforms without requiring specialized communication protocols
- Pre-tuned LC circuits eliminate frequency calibration requirements, reducing commissioning time from hours to minutes
- Operating on unlicensed 433 MHz ISM band globally, eliminating regulatory licensing costs and enabling worldwide deployment
- Configurable baud rates from 1200 to 9600 bps allowing optimization for different data transmission requirements and noise immunity
Applications and Use Cases
- Remote gate and door control systems in residential properties and commercial facilities using wireless RF signals to activate electric locks and solenoid mechanisms
- Agricultural automation for remotely controlling irrigation pumps, greenhouse ventilation systems, and livestock monitoring across farm properties spanning multiple hectares
- Industrial wireless emergency stop systems for machinery control where hardwired connections are impractical, meeting safety standards for remote shutdown capability
- Drone and quadcopter flight control systems utilizing the encoder-decoder pair for stable long-range command transmission and telemetry feedback
- Home automation projects integrating multiple RF receivers to control lighting, fans, and appliances from centralized wireless remote control panels
- Weather station data collection where remote sensor nodes transmit temperature, humidity, and pressure readings back to a central monitoring station
- Wireless alarm and security systems for detecting unauthorized access in remote locations and transmitting alerts across extended distances
- RC vehicle and robot control applications requiring reliable bidirectional communication between operator console and mobile platform across 2 km range
How to Use
Begin 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.
For 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.
Frequently Asked Questions
What is the actual transmission range in real-world conditions?
The 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.
Can I use this kit for bidirectional communication?
This 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.
How do I integrate this with Arduino or Raspberry Pi?
Connect 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.
What frequency does this kit operate on and is it legal in India?
This 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.
Why is my range significantly less than 2 km?
Common 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.
Can I use multiple encoders with one decoder?
Multiple 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.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We 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.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy Long Range RF link Kits with Encoder and Decoder - 2 km Online in India
Purchase the Long Range RF link Kits with Encoder and Decoder - 2 km online at The Engineer Store, 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 Long Range RF link Kits with Encoder and Decoder - 2 km with fast shipping and expert support.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.
Long Range RF link Kits with Encoder and Decoder - 2 km
This 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.
Product Overview
The 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.
This 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.
Key Specifications
| Specification | Details |
| Product Type | Long Range RF Wireless Link Kit with Encoder and Decoder |
| Brand | Generic/OEM Original |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Operating Frequency | 433 MHz ISM Band |
| Transmission Range | 2 km (open field, line of sight) |
| Modulation Type | ASK (Amplitude Shift Keying) |
| Baud Rate | 1200 bps to 9600 bps configurable |
| Operating Voltage | 5V DC (encoder and decoder) |
| Current Consumption | Transmitter: 40 mA, Receiver: 5 mA standby |
| Output Pin Configuration | 4-channel digital output on decoder |
| Antenna Type | 1/4 wave monopole included |
Key Features
- Extended 2 km transmission range in open-field conditions with optimized antenna design for maximum signal propagation and minimal path loss
- Integrated encoder module converts 4-channel digital logic signals into modulated RF signals compatible with standard wireless protocols
- Matched decoder module with latch functionality maintains output state even after signal interruption, ensuring fail-safe operation in critical control applications
- Low power consumption with 5 mA standby current on receiver module, ideal for battery-powered remote monitoring and portable IoT devices
- Simple digital I/O interface compatible with Arduino, Raspberry Pi, and microcontroller platforms without requiring specialized communication protocols
- Pre-tuned LC circuits eliminate frequency calibration requirements, reducing commissioning time from hours to minutes
- Operating on unlicensed 433 MHz ISM band globally, eliminating regulatory licensing costs and enabling worldwide deployment
- Configurable baud rates from 1200 to 9600 bps allowing optimization for different data transmission requirements and noise immunity
Applications and Use Cases
- Remote gate and door control systems in residential properties and commercial facilities using wireless RF signals to activate electric locks and solenoid mechanisms
- Agricultural automation for remotely controlling irrigation pumps, greenhouse ventilation systems, and livestock monitoring across farm properties spanning multiple hectares
- Industrial wireless emergency stop systems for machinery control where hardwired connections are impractical, meeting safety standards for remote shutdown capability
- Drone and quadcopter flight control systems utilizing the encoder-decoder pair for stable long-range command transmission and telemetry feedback
- Home automation projects integrating multiple RF receivers to control lighting, fans, and appliances from centralized wireless remote control panels
- Weather station data collection where remote sensor nodes transmit temperature, humidity, and pressure readings back to a central monitoring station
- Wireless alarm and security systems for detecting unauthorized access in remote locations and transmitting alerts across extended distances
- RC vehicle and robot control applications requiring reliable bidirectional communication between operator console and mobile platform across 2 km range
How to Use
Begin 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.
For 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.
Frequently Asked Questions
What is the actual transmission range in real-world conditions?
The 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.
Can I use this kit for bidirectional communication?
This 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.
How do I integrate this with Arduino or Raspberry Pi?
Connect 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.
What frequency does this kit operate on and is it legal in India?
This 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.
Why is my range significantly less than 2 km?
Common 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.
Can I use multiple encoders with one decoder?
Multiple 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.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We 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.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy Long Range RF link Kits with Encoder and Decoder - 2 km Online in India
Purchase the Long Range RF link Kits with Encoder and Decoder - 2 km online at The Engineer Store, 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 Long Range RF link Kits with Encoder and Decoder - 2 km with fast shipping and expert support.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.