Description
This 3DR Radio Telemetry 433MHz 500mW Set allows you to link to a flight controller to a USB or UART equipped device such as a computer, laptop or tablet supporting a USB connection (OTG).
The new V2 radios, no longer have a separate Air/Ground module, as both transceivers can use UART or USB connections and supports both modes. The Radio set not only lets you see live data, such as live GPS position overlaid on a map, system voltage, heading, waypoint navigation even artificial horizon and so much more.
3DR Single TTL MINI Radio Using open source MAVlink based ground station software, you can even fly your aircraft with a joystick via your computer and update settings live! Or just use it for your DIY projects that need a wireless Serial interface. This kit offers a great low price, longer range, and superior performance. The system utilizes the 433MHz band and provides a full-duplex link using HopeRF’s HM-TRP modules running custom, open source, firmware.
Note: The reference to APM refers to the ArduPilot project, a family of open source autopilots based on the Arduino open-source computing platform, developed by 3DR and the open source community. It consists of a choice of ArduPilot Mega (APM) electronics and a range of free software versions for different vehicles and is governed by an open source creative commons license.
Important Note: Do not turn ON the 3DR telemetry without attaching the antenna.
Note : Product may be available with casing or without casing
Features :
- 3DR Single TTL MINI Radio MAVLink protocol framing status documents
- 3DR Single TTL MINI Radio Frequency modulation and Spread Spectrum (FHSS)
- 3DR Single TTL MINI Radio Self-adaption to time division multiplexing
- 3DR Single TTL MINI Radio Support LBT and AFA
- 3DR Single TTL MINI Radio Configurable duty cycle
- 3DR Single TTL MINI Radio Built-in error correcting code(up to 25% data bit error)
- 3DR Single TTL MINI Radio AT command configure data transmission
- 3DR Single TTL MINI Radio RT command remote control data transmission
- 3DR Single TTL MINI Radio Interchangeable air and ground 433MHz modules
- 3DR Single TTL MINI Radio Micro-USB port
- 3DR Single TTL MINI Radio -position Molex connector
- 3DR Single TTL MINI Radio 250mW maximum output power (adjustable)
- 3DR Single TTL MINI Radio SMA connector
- 3DR Single TTL MINI Radio 2-way full-duplex communication through adaptive TDM
- 3DR Single TTL MINI Radio UART interface
- 3DR Single TTL MINI Radio Transparent serial link
- 3DR Single TTL MINI Radio Open-source SIK firmware
- 3DR Single TTL MINI Radio Configurable through *Mission Planner and *APM Planner
- Based on the HM-TRP wireless module, with Si1000 8051 microcontroller and Si4432
Package Includes :
1 x Radio Telemetry Base Station (USB Connection).
1 x Telemetry Transreceiver (Pin Header).
2 x 2.5dbi Antenna.
1 x 5-pin Lead cable for APM FC.
1 x 6-pin Lead cable for PIXHAWK FC.
Here is the information you provided in a table format:
Item Type | Kit |
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Frequency (GHz) | 0.43 GHz |
Range | 2500 m |
Power Rating (W) | 250 mW |
Receive Sensitivity | -124 dBm |
Operating Voltage (VDC) | 3 ~ 6 VDC |
Max. Operating Current (mA) | 500 mA |
Operating Temperature (°C) | -24 to 84 °C |
Size (mm) | 54 x 260 x 12 |
Length (mm) | 110 mm |
Weight (g) | 33 g |
Shipping Weight | 0.037 kg |
Shipping Dimensions (cm) | 10 × 6 × 5 cm |
15 Days Warranty
This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.
What voids warranty:
If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.
FPVATR05
3DR Single TTL MINI Radio Telemetry 433MHz 500mW for PIXHAWK/APM – Long-Range Wireless MAVLink Module
Unlock seamless, long-range wireless communication between your drone and ground control station with the 3DR Single TTL MINI Radio Telemetry Module (433MHz, 500mW). Designed specifically for PIXHAWK and APM flight controllers, this module enables real-time telemetry data transmission for mission-critical operations like autonomous waypoint navigation, live parameter tuning, and GPS tracking.
Built around the SiK open-source firmware, the module supports MAVLink protocol, frequency hopping spread spectrum (FHSS), error correction, and automatic retransmissions — ensuring robust and reliable communication even in interference-prone environments.
Technical Specifications:
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3DR Single TTL MINI Radio Frequency: 433 MHz ISM Band (Not legal in North America—use 915MHz version if required)
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3DR Single TTL MINI Radio Transmit Power: Up to 500mW (27dBm)
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3DR Single TTL MINI Radio Range: Up to 3–5 km (LOS, with good antennas)
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3DR Single TTL MINI Radio Interface: TTL Serial (5V I/O)
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3DR Single TTL MINI Radio Modulation: GFSK
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3DR Single TTL MINI Radio Baud Rate (Air/Ground): Configurable (default: 57600 bps)
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3DR Single TTL MINI Radio Firmware: SiK 2.x Compatible
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3DR Single TTL MINI Radio Antennas: RP-SMA or u.FL depending on the model
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3DR Single TTL MINI Radio Operating Voltage: 5V DC
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3DR Single TTL MINI Radio Dimensions: Ultra-compact mini design
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3DR Single TTL MINI Radio Weight: Approx. 15g (with antenna)
Package Includes:
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1 × 433MHz 500mW Telemetry Module (Air/Ground)
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1 × 433MHz Antenna
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1 × 6-pin JST-GH Cable (for PIXHAWK/APM)
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Optional: USB adapter for PC (in full sets)
Product Highlights:
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High Power, Long Range – Ideal for mapping drones, surveying, and long-endurance FPV flights.
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Bi-Directional Link – Send commands to the drone while receiving real-time telemetry.
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Robust Signal Quality – Thanks to automatic error correction and frequency hopping.
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Low Latency – Ensures timely updates on battery status, GPS, flight modes, and failsafe events.
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Plug-and-Play – Works right out of the box with Mission Planner and QGroundControl.
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Customizable – Advanced users can reconfigure power levels, frequency ranges, and data rates using the SiK Radio Config Tool.
Applications:
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3DR Single TTL MINI Radio Aerial Mapping & Survey Missions
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3DR Single TTL MINI Radio Precision Agriculture Drones
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3DR Single TTL MINI Radio Research UAVs
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3DR Single TTL MINI Radio FPV Racing and Long-Range Drones
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3DR Single TTL MINI Radio Environmental Monitoring Platforms
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Search and Rescue UAVs
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3DR Single TTL MINI Radio Telemetry Module – 433MHz 500mW for PIXHAWK/APM
Advanced Long-Range Wireless Communication for UAV Telemetry Systems
The 3DR Single TTL MINI Radio Telemetry 433MHz 500mW module is a powerful, compact, and professional-grade wireless communication device designed to establish a reliable MAVLink telemetry link between your Unmanned Aerial Vehicle (UAV) and Ground Control Station (GCS). Whether you’re flying long-range missions or need stable real-time feedback from your drone, this module ensures robust data transmission with extended range and low interference.
Detailed Overview:
This telemetry radio module operates in the 433 MHz ISM band, which offers better penetration and range performance in rural and open environments compared to 2.4GHz or 915MHz. With its high output power of 500mW, it can deliver up to 5+ kilometers of range (line of sight), making it a trusted solution for professionals in agriculture, surveying, research, and search-and-rescue drone operations.
It’s powered by SiK open-source firmware, providing advanced features like:
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3DR Single TTL MINI Radio Adaptive Time Division Multiplexing (TDM)
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3DR Single TTL MINI Radio Error Correction Codes (ECC)
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3DR Single TTL MINI Radio Frequency Hopping Spread Spectrum (FHSS)
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3DR Single TTL MINI Radio Automatic Retransmission on Packet Loss
Hardware Highlights:
Feature Specification Frequency Band 433 MHz ISM Transmit Power Adjustable up to 500mW (High power, long-range) Communication Protocol MAVLink Compatible Interface TTL UART (TX/RX/GND/5V) Baud Rate Configurable – Default: 57600bps Firmware Open-Source SiK firmware Range Up to 5–8 km Line-of-Sight (with proper antenna) Compatibility PIXHAWK, APM 2.6, APM 2.8, ArduPilot, etc. Dimensions Mini Compact Form Factor Operating Voltage 5V ± 0.2V Antenna Connector RP-SMA or u.FL (model-dependent)
Key Functional Advantages:
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Real-Time Flight Data Access – Get live updates on altitude, GPS position, battery levels, and flight modes on your PC or laptop.
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On-the-Fly Parameter Adjustments – Modify PID settings, flight parameters, and failsafe logic mid-mission.
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Waypoint Uploading and Live Mapping – Plan or edit missions via Mission Planner or QGroundControl wirelessly.
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Efficient Power Usage – Low current draw makes it drone-friendly for extended flight times.
Why Choose the 433MHz 500mW Version?
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3DR Single TTL MINI Radio Better signal penetration than 915MHz in hilly or forested terrain
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3DR Single TTL MINI Radio Less crowded band than 2.4GHz Wi-Fi channels
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3DR Single TTL MINI Radio Stronger transmission power than 100mW or 250mW variants
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3DR Single TTL MINI Radio Suitable for long-range and high-reliability UAV operations
Important Usage Notes:
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Regulatory Compliance: 433 MHz is permitted in many regions (e.g., EU), but not legal in North America for telemetry – use 915 MHz in such cases.
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Power Supply: Ensure a clean and stable 5V power source to prevent signal dropouts.
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Firmware Matching: Both ground and air modules must use the same firmware version (SiK) for proper link establishment.
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Antenna Positioning: Mount antennas vertically and away from metal or carbon fiber structures for maximum range.
Typical Package Contents (Single Module):
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1 × 3DR Mini Radio Telemetry Module (433MHz, 500mW)
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1 × Antenna (433MHz)
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1 × 6-Pin JST-GH/DF13 Cable (FC connection)
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No USB adapter included – purchase separately if needed for GCS setup
Applications:
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3DR Single TTL MINI Radio Precision Agriculture and Crop Monitoring
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3DR Single TTL MINI Radio Aerial Mapping, GIS, and Land Survey Projects
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3DR Single TTL MINI Radio Fixed-Wing and Multirotor Long-Range UAVs
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3DR Single TTL MINI Radio Search and Rescue / Disaster Response Drones
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3DR Single TTL MINI Radio Autonomous Missions with Live Feedback
3DR Single TTL MINI Radio Telemetry 433MHz 500mW
Professional MAVLink Communication Link for Aerial Robotics & UAV Systems
The 3DR Single TTL MINI Radio Telemetry 433MHz 500mW module is a high-performance wireless communication device engineered for aerospace-grade telemetry, making it ideal for advanced drone pilots, research labs, agriculture experts, and surveillance operators. This telemetry module supports long-distance, bidirectional data transmission using TTL-level serial communication and integrates flawlessly with MAVLink-based flight controllers like PIXHAWK and APM.
Technical Deep Dive:
RF Performance:
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3DR Single TTL MINI Radio Modulation Scheme: GFSK (Gaussian Frequency Shift Keying)
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3DR Single TTL MINI Radio Channel Spacing: 25 kHz – allowing multiple telemetry links without overlap
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3DR Single TTL MINI Radio Sensitivity: Up to -121 dBm – enables reliable reception at weak signal levels
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3DR Single TTL MINI Radio Output Power Levels: Software-configurable (1mW to 500mW)
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3DR Single TTL MINI Radio Antenna Gain Supported: Up to 5 dBi supported without amplifier overdrive
Data Protocols:
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3DR Single TTL MINI Radio MAVLink V1/V2 Support
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3DR Single TTL MINI Radio Transparent serial passthrough (for custom protocols)
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3DR Single TTL MINI Radio Error Detection: CRC-16 and Forward Error Correction (FEC)
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3DR Single TTL MINI Radio Retransmission: Automatic retries on packet loss
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3DR Single TTL MINI Radio Flow Control: RTS/CTS (for ground modules with FTDI/USB)
Configuration Interface:
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Compatible with Mission Planner’s SiK Radio Configuration Tool
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Supports firmware flashing via USB/UART bootloader
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Adjustable parameters:
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Frequency channel
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Air & ground data rates
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Transmit power
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ECC/FHSS toggles
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System Integration & Compatibility:
Compatible Flight Controllers:
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PIXHAWK 1, 2.4.8, 2 Cube, 4, 6X
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APM 2.5 / 2.6 / 2.8 (TTL UART support required)
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Any MAVLink-enabled FC with UART port
Compatible GCS Software:
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Mission Planner (Windows)
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QGroundControl (Windows, Mac, Linux, Android)
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APM Planner 2.0
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Tower (Android – legacy)
Typical Connection Setup:
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3DR Single TTL MINI Radio Air Module: Connects to TELEM1/TELEM2 on flight controller (5V TX/RX/GND)
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3DR Single TTL MINI Radio Ground Module: Connects to PC via USB-UART adapter (FTDI or CP2102) or directly to serial port
Real-World Use Case Scenarios:
1. Long-Range Fixed-Wing Mapping Drone
A surveyor uses a 433MHz telemetry module with a fixed-wing drone to map a 2,000-acre agricultural site. The 500mW module maintains a reliable 4.5 km link between Mission Planner and the drone, allowing waypoint updates and real-time telemetry monitoring over the entire flight.
2. Autonomous Disaster Response Drone
In a post-disaster area with no internet or RF interference, a rescue drone uses this module to provide real-time video and telemetry updates to a ground control team, enabling dynamic mission replanning without physical retrieval.
3. University UAV Research Project
Students at an engineering college deploy this telemetry module to log flight metrics, GPS data, and PID parameters in real time. They analyze telemetry logs from Mission Planner to refine their autonomous path-planning algorithms.
Best Practices for Optimal Use:
Tip Benefit Mount antennas vertically & clear of carbon frames
Maximizes signal strength & reduces RF shadowing Power the air module from regulated 5V source
Prevents brownouts and communication loss Use high-gain directional antenna on ground module
Extends communication range Always test on bench before field deployment
Ensures baud rate and firmware compatibility Save settings in SiK Config Tool
Prevents reset during reboot
Frequently Asked Questions (FAQs):
Q1. Can I use this with ArduPilot or PX4?
Yes. This module is fully compatible with both ArduPilot and PX4 firmware via MAVLink.
Q2. How far can it reach?
With proper antenna setup and line-of-sight, the module can reach 5–8 km. Results may vary with terrain, obstacles, and antenna quality.
Q3. Can I update the firmware?
Yes. The module supports bootloader-based firmware upgrades using tools like Mission Planner or SiK Config.
Q4. Can I use this without GPS?
Yes. It’s not dependent on GPS – it simply transmits any serial data from the flight controller, which can include battery status, attitude, etc.
Q5. Is this a full telemetry kit?
No. This is a single module only. You’ll need another 3DR-compatible ground or air module to establish a complete telemetry link.
Summary:
The 3DR Single TTL MINI Radio Telemetry 433MHz 500mW module is a battle-tested, field-proven, and customizable telemetry solution trusted by drone operators worldwide. Whether you’re running autonomous mapping missions, agricultural surveillance, or university research, this module gives you stable, long-range, and low-latency communication with full MAVLink support.
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Why Choose Lofty AgroTech?
When building or servicing agricultural drones in India, Lofty AgroTech stands out as a reliable and innovative partner. Here’s a comprehensive breakdown of why we choose Lofty AgroTech:
DPIIT-Recognized Innovation
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Lofty AgroTech is officially recognized by the Department for Promotion of Industry and Internal Trade (DPIIT), Govt. of India.
This certification ensures quality, credibility, and government endorsement as a genuine Indian AgriTech innovator.
Tailored for Indian Farming Conditions
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Their drone components—including GPS modules, landing gear, frames, and spraying systems—are designed and tested for Indian climates:
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Heat, dust, and humidity-resistant
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Compatible with crops like paddy, cotton, and sugarcane
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Engineered specifically for Indian fields, not generic imports.
Complete Hardware Ecosystem
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Lofty AgroTech provides GPS modules, drone frames, landing gear, sprayer accessories, flight controllers, and telemetry—all under one roof.
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Ideal for building integrated systems that work seamlessly together from day one.
Plug-and-Play Convenience
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Products like the NZ Mini GPS Module are pre-configured for Betaflight/Cleanflight, and hardware parts fit standard UAV systems perfectly.
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No firmware flashing or awkward adapters—just plug, play, and fly.
Strong Local Support & Spare Parts
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Fast shipping across India without customs delays.
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Dedicated after-sales support via phone or chat—real help when you’re in the field or repairing.
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Access to common spares, making downtime less likely.
Academic & Startup Partnerships
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Lofty AgroTech collaborates with colleges, R&D centers, and agri-tech startups, providing drone kits, hardware training, and workshops.
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Their products are trusted in STEM labs, contests, innovator incubators, and proof-of-concept tests.
Proven Quality & Real-World Performance
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Uses industrial-grade components like u‑blox GPS chips, carbon fiber, and rugged nylon.
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Field-tested in Indian conditions to ensure reliability for crop spraying, mapping, and monitoring.
Educator & Builder-Friendly
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Their hardware encourages hands-on learning and experimentation without requiring advanced drone expertise.
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Ideal for drone clubs, agricultural training, hobbyist builders—even first-time users.
Feature Why It Matters DPIIT-recognition
Official credibility and national support India-ready design
Handles dust, heat, and rugged farm terrain Full ecosystem of parts
One-stop for drone assembly & upgrading Pre-tuned hardware
Speeds up deployment without tech hassles Quick support & spares
Minimized downtime in remote locations Academic collaborations
Builds future tech, research, and innovation High-grade materials
Long-lasting and dependable in tough use User-friendly for all levels
Great for experts, educators, and first-timers .
Ready to Get the Best Value for Your Drone Builds?
Whether you’re assembling your first quad or leading a drone R&D lab, Lofty Agrotech ensures your investment goes into quality, not confusion.
Still unsure what fits your budget and performance needs? Talk to our experts—we’ll help you decide without upselling.
Institutional Support & Educational Offers
At Lofty Agrotech, we believe in empowering innovation through education. As drone technology becomes a cornerstone of engineering, agriculture, and automation studies, we’re committed to supporting students, educators, and institutions with resources that go far beyond commercial transactions.
Designed for Academia & R&D
We actively collaborate with:
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Engineering colleges for final year drone and mechatronics projects
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Technical universities integrating UAVs into curriculum
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Research institutions and innovation labs exploring drone-based solutions
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Polytechnic and diploma-level institutions for hands-on drone skill-building
We’ve supported 70+ institutions across India with high-quality parts, build assistance, and curriculum alignment.
Exclusive Educational Discounts
We offer special pricing structures tailored for learning environments:
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Flat % discounts for verified student and faculty orders
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Price waivers or bundle deals on bulk quantities and lab kits
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Custom billing for college purchase departments and project grants
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GST-compliant invoicing for smooth procurement workflows
Every rupee saved can be invested back into your learning journey.
Build Kits for Projects, Labs & Hackathons
We supply custom FPV and drone kits designed for:
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Final year projects on AI, computer vision, agriculture drones, etc.
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Hackathons and technical fests where fast assembly and reliable parts matter
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Drone training labs needing repeatable, standard setups for multiple students
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Demo-ready prototypes for academic exhibitions and competitions
Each kit can include:
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Frame + motors + ESCs + flight controller + camera
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GPS + battery straps + antennas + GoPro mounts
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Wiring, build guide PDFs, and phone-based setup assistance
Tell us your use-case — we’ll build the right kit for your classroom or competition.
Documentation & Tech Support for Reports
We assist students and mentors with:
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Detailed datasheets and specs for every part purchased
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Pre-filled or editable bill of materials (BOM) for submission
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Reference photos, connection diagrams, and PID tuning guides
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Help with design justification, component selection, and technical write-ups
Save time, avoid confusion, and meet academic documentation standards with our help.
Long-Term Collaboration Opportunities
For colleges looking to scale their UAV programs, we provide:
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Campus-wide drone lab setup consultations
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Mentorship tie-ups with our engineering team
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Joint research support in AI-agriculture, delivery drones, and aerial surveillance
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Feature coverage of college builds and success stories on our platforms
Let’s build visibility for your institution while equipping students for tomorrow’s UAV jobs.
Ready to Partner With Us?
Whether you’re representing a college, lab, startup incubator, or student club, Lofty Agrotech is ready to support your vision with:
Verified brand components
Discounted educational pricing
Technical mentorship
Hassle-free procurement
Contact us today via WhatsApp or email with your institution name, project scope, and component list. We’ll take it from there—professionally and promptly.
Your Trusted FPV Partner in India
At Lofty Agrotech, we’re not just another online drone store—we’re your go-to partner for everything FPV and drone-related. From high-performance gear to educational guidance, we’re here to help you build, fly, learn, and evolve with confidence.
Made for the Indian FPV Scene
We understand the unique challenges Indian drone pilots and builders face:
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Import restrictions and part availability
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Delivery delays from international suppliers
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Lack of after-sale guidance from foreign retailers
That’s why we built Lofty Agrotech—to provide a local, reliable, and technically strong alternative that delivers both speed and trust.
From Tamil Nadu to Tripura, we’ve shipped high-quality drone parts to over 1200+ Indian locations and counting.
One-Stop Drone Knowledge Hub
We are more than sellers—we are curators, educators, and enthusiasts who live the drone lifestyle.
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Frequent product launches & detailed guides
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Real-world compatibility checks before shipping
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WhatsApp & email support with actual drone engineers
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No clones, no confusion—just clean, build-ready components
Whether it’s your first drone or your fiftieth, we have something valuable for your journey.
Community Over Commerce
We’ve grown not by pushing sales—but by earning trust:
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5-star reviews from students, builders, and professionals
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Trusted supplier for drone competitions, hackathons, and R&D grants
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Regularly featured by YouTubers, FPV pilots, and institutions across India
At Lofty, you’re not just a customer—you’re part of a mission.
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We Fly What We Sell
Every product listed has been tested, reviewed, or recommended by our team. We build our own drones, fly with the same gear, and know what works best for:
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Freestyle FPV
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Long-range drones
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Survey drones for agriculture
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Academic R&D projects
Our credibility comes from hands-on experience, not marketing fluff.
Ready to Elevate Your FPV Experience?
Join the growing tribe of Indian drone builders who trust Lofty Agrotech for quality, clarity, and consistent support. Whether you’re ordering the HGLRC Sector D5, DJI O3 units, or assembling a custom FPV rig—we’ve got your back.
Lofty Agrotech – Built by flyers, trusted by builders, and loved by learners.
Order today, message us anytime, and experience India’s most reliable drone parts platform.
With thousands of satisfied customers and a growing footprint in India’s drone ecosystem, Lofty Agrotech has become the go-to source for authentic, high-performance, and expertly supported FPV gear.
From your first flight to your next freestyle banger—we’ve got your back.
Ready to Build Like a Pro?
Take your drone-building journey to the next level with the HGLRC Sector D5 FR 5-Inch Freestyle FPV Frame, now available at Lofty Agrotech—India’s most trusted FPV and drone component partner.
Built for Freestyle. Backed by Professionals.
Whether you’re a beginner FPV enthusiast or a seasoned pilot looking to upgrade, the Sector D5 offers:
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Crash-resilient 5mm arms
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DJI O3 VTX compatibility
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CNC aluminum side panels
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Full TPU accessory kit
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Vibration-isolated camera mount
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Clean, modular design for easy field maintenance
All from a verified brand. Delivered by experts. Supported by flyers like you.
Order Today from Lofty Agrotech
When you buy from Lofty Agrotech, you’re choosing:
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Original components
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Expert support at every step
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Fast, secure delivery across India
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Free consultation for part compatibility & build advice
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Special support for students and academic builds
In stock now. Limited quantities available. Ships within 24 hours.
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Explore more in our camera drone collection and find the right aerial companion.
Before flying, ensure you’re compliant with India’s drone regulations (DGCA DigitalSky Portal).
Lofty Agrotech YouTube Channel
Explore Lofty Agrotech’s official YouTube channel for videos showcasing their drone technologies and applications:(Southern Drone OPS)
Certainly! Here’s a comprehensive overview of Lofty Agrotech’s drone offerings and available drone parts:
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