Holybro Sik Telemetry radio V3-100 mW 433 Mhz

Description

Holybro MAVLink Telemetry Kit

📘 Detailed Description:

The Holybro SiK Telemetry Radio V3 100mW 433 MHz is a high-quality, open-source wireless data transmission module designed specifically for drones and unmanned systems using the MAVLink protocol. It enables real-time, bi-directional communication between your Ground Control Station (GCS) and your drone’s flight controller (such as Pixhawk, ArduPilot, or CubePilot systems).

This V3 model builds on the success of earlier SiK radios with improvements in design, power efficiency, and compatibility. It comes preloaded with the SiK firmware, which supports frequency hopping, error correction, and configurable power levels. The 433 MHz frequency allows for excellent range and signal penetration, especially in complex terrain, making it ideal for long-range, low-interference telemetry operations.

Each set includes two modules:

• Air Unit: Connects to the flight controller via a 6-pin JST-GH connector.

• Ground Unit: Features a micro USB interface for seamless plug-and-play operation with laptops or GCS hardware.

Both modules are equipped with RP-SMA connectors and detachable antennas, allowing for antenna upgrades or relocation using extension cables. The telemetry radio operates at 100mW (20 dBm) output power, providing a stable link up to 2–3 kilometers in ideal line-of-sight conditions. With good antenna placement and a clear RF environment, even longer ranges can be achieved.

The V3 model supports auto software detection and transparent serial forwarding, ensuring minimal setup effort. It also supports advanced options like changing frequency channels, baud rates, and power levels through configuration tools like Mission Planner.

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⚡ Key Use Case Benefits:

•  Holybro MAVLink Telemetry Kit Mission Planning & Monitoring: Upload waypoints, change flight paths, and adjust parameters on the fly.

•  Holybro MAVLink Telemetry Kit Telemetry Streaming: View real-time data such as GPS, altitude, battery, attitude, and speed.

•  Holybro MAVLink Telemetry Kit Log Downloading: Retrieve flight logs remotely after missions without removing SD cards.

•  Holybro MAVLink Telemetry Kit Failsafe Feedback: Monitor failsafe events or sensor errors in real time from the ground.

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🛠️ Firmware Features (SiK Radio Firmware):

•  Holybro MAVLink Telemetry Kit Frequency hopping spread spectrum (FHSS)

•  Holybro MAVLink Telemetry Kit Configurable air data rates (up to 250 kbps)

•  Holybro MAVLink Telemetry Kit Error detection and correction (FEC)

•  Holybro MAVLink Telemetry Kit Software-configurable parameters (via AT commands or ground control software)

•  Holybro MAVLink Telemetry Kit Automatic duty cycle control (for regulatory compliance)

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🧰 Included in the Package:

•  Holybro MAVLink Telemetry Kit 1x 433 MHz 100mW SiK Telemetry Radio (Air Unit)

•  Holybro MAVLink Telemetry Kit 1x 433 MHz 100mW SiK Telemetry Radio (Ground Unit)

•  Holybro MAVLink Telemetry Kit 2x 433 MHz antennas (RP-SMA)

•  Holybro MAVLink Telemetry Kit 1x Micro USB cable

•  Holybro MAVLink Telemetry Kit 1x JST-GH to DF13 adapter cable (for Pixhawk or compatible FCs)

📦 Key Features:

•  Holybro MAVLink Telemetry Kit Frequency: 433 MHz (license-free in many countries; check local regulations)

•  Holybro MAVLink Telemetry Kit Output Power: 100mW (adjustable via software)

•  Holybro MAVLink Telemetry Kit Protocols: Fully compatible with MAVLink

•  Holybro MAVLink Telemetry Kit Firmware: Loaded with SiK firmware (open-source)

•  Holybro MAVLink Telemetry Kit Range: Up to 2–3 km (line of sight, with proper antennas)

•  Holybro MAVLink Telemetry Kit Air & Ground Unit: Comes as a pair – one for the drone (airborne), one for GCS (USB)

•  Holybro MAVLink Telemetry Kit Connectors: JST-GH 6-pin and micro USB

•  Holybro MAVLink Telemetry Kit Compatibility: Works with Pixhawk, ArduPilot, Mission Planner, QGroundControl, and other autopilot systems

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⚙️ Technical Specifications:

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🧠 Advantages:

•  Holybro MAVLink Telemetry Kit Reliable Telemetry Link: Low-latency, stable data transmission

•  Holybro MAVLink Telemetry Kit Open Source Firmware: Customizable for advanced users

•  Holybro MAVLink Telemetry Kit Compact Design: Lightweight and flight-friendly

•  Holybro MAVLink Telemetry Kit Cross-platform Support: Compatible with major GCS software

•  Holybro MAVLink Telemetry Kit Good Signal Penetration: 433 MHz performs better around obstacles than 915 MHz

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⚠️ Points to Consider:

•  Holybro MAVLink Telemetry Kit 433 MHz band is not legal in some countries for telemetry — ensure regional compliance.

•  Holybro MAVLink Telemetry Kit Range is dependent on environment, antenna gain, and positioning.

•  Holybro MAVLink Telemetry Kit Only 100mW power output — might not be sufficient for long-range beyond 3 km without high-gain antennas.

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🛠️ Applications:

•  Holybro MAVLink Telemetry Kit Used for FPV drones, autonomous UAVs, fixed-wing drones, robotic telemetry

•   Holybro MAVLink Telemetry Kit Ideal for real-time flight monitoring, parameter tuning, log downloads

Introducing the Holybro SiK Telemetry Radio V3 – 100mW 433MHz, now available at LOFTY AGROTECH. This compact and lightweight telemetry solution is designed to facilitate seamless communication between your autopilot system and ground control station. With its open-source SiK firmware, it ensures reliable data transmission and easy integration with various flight controllers.

The radio operates at a frequency of 433MHz with an adjustable output power of up to 100mW, providing a transmission range of 300–500 meters in urban environments. Its two-way full-duplex communication via adaptive Time Division Multiplexing (TDM) UART interface ensures efficient data exchange. The device supports MAVLink protocol framing, making it compatible with popular ground control software like Mission Planner and APM Planner.​

Equipped with a micro-USB port and a 6-position JST-GH connector, the Holybro SiK Telemetry Radio V3 offers versatile connectivity options. Its RP-SMA connector allows for easy antenna replacement, and the transparent serial link ensures minimal latency in data transmission. The radio also features Frequency Hopping Spread Spectrum (FHSS) technology and error correction capabilities, enhancing its reliability in various operating conditions.

For more details and to purchase, click here.

🔧 Holybro SiK Telemetry Radio V3 100mW 433 MHz – Full Product Analysis

The Holybro SiK Telemetry Radio V3 100mW 433 MHz is a compact, lightweight, and robust data link solution built for unmanned aerial vehicles (UAVs), drones, and robotic systems requiring real-time telemetry communication. Designed around the open-source SiK radio firmware, this telemetry kit is a reliable upgrade over traditional 3DR radio clones, featuring improved components, higher build quality, and better thermal stability.

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🌐 Wireless Communication Powerhouse

Operating on the 433 MHz ISM band, this radio module offers lower signal attenuation and better range performance in cluttered environments compared to higher frequency systems like 915 MHz. The 433 MHz signal penetrates trees, buildings, and obstructions more effectively, making it ideal for:

•  Holybro MAVLink Telemetry Kit Forestry UAVs

•  Holybro MAVLink Telemetry Kit Search and Rescue (SAR)

•  Holybro MAVLink Telemetry Kit Agricultural drones

•  Holybro MAVLink Telemetry Kit Long-range fixed-wing aircraft

While the 100mW output may seem modest, the frequency and noise immunity allow stable performance over 2–3 kilometers line-of-sight, and with directional or high-gain antennas, this can be significantly extended.

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📲 Plug-and-Play Simplicity with Advanced Options

Holybro makes setup extremely user-friendly. The ground unit connects via micro USB to a laptop or ground control hardware (such as Herelink or Skydroid systems), while the air unit uses a 6-pin JST-GH cable to plug into flight controllers like Pixhawk 4, Pixhawk 6X, Cube Orange, and other MAVLink-compatible boards.

Despite the plug-and-play nature, advanced users can access deep customization using:

• Mission Planner

• QGroundControl

• AT command terminal tools

• SiK Config GUI

📊 Customization Options Include:

• Baud Rate Adjustment (57600 default)

• Output Power (1mW to 100mW)

• Frequency Tuning (433.000 MHz to 434.790 MHz)

• Net ID & ECC for multiple drones

• Duty cycle and LBT settings for legal compliance

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🔋 Efficient and Compact for Flight Integration

With a weight of ~12g, the air unit is designed to have minimal impact on flight endurance. It operates at 5V DC input, typically powered by the flight controller or a BEC (battery eliminator circuit). The radio generates little heat, and its surface-mount design ensures vibration resistance during high-speed flights.

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📦 Practical Design Elements:

• LED Indicators for connection, link activity, and status

• Removable RP-SMA antennas – allows upgrading to higher gain antennas

• EMI Shielding – for stable operation near power distribution boards or ESCs

• PCB Conformal Coating – helps protect against dust and humidity

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🔐 Security and Reliability

While SiK radios do not natively encrypt transmissions, they support frequency hopping spread spectrum (FHSS) and forward error correction (FEC), providing robust resistance to noise, interference, and packet loss. For critical operations, pairing with a higher-gain antenna or RF filter further increases resilience.

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🧪 Use Case Scenarios

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📚 Educational Note

This radio uses the RFD900 / 3DR style SiK firmware and supports transparent serial communication, meaning it acts like a virtual wire between the GCS and autopilot. Any MAVLink-capable software (e.g., Mission Planner) can communicate without additional drivers or setup beyond COM port recognition.

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📦 What’s in the Box?

• ✅ 1x SiK Telemetry Radio (Air Module)

• ✅ 1x SiK Telemetry Radio (Ground Module)

• ✅ 2x 433MHz Antennas (RP-SMA)

• ✅ 1x Micro USB Cable

• ✅ 1x JST-GH to DF13 Cable (for legacy Pixhawk models)

• ✅ Instruction Guide or Quickstart Sheet (optional, depending on seller)

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🚦 Final Thoughts

The Holybro SiK Telemetry Radio V3 100mW 433 MHz is ideal for anyone seeking a reliable, open-source, long-range telemetry solution. Whether you’re building an autonomous drone, deploying a UAV fleet for environmental monitoring, or doing academic research on flight systems, this radio gives you a stable, configurable, and expandable communication link at a budget-friendly price.

🔬 Advanced Technical Overview

📡 Core Communication Technology

The Holybro SiK Radio V3 is built around the HopeRF RF module (typically HM-TRP or RFM22B), which supports:

• GFSK modulation for reliable digital communication

• Configurable channel spacing (25kHz or 12.5kHz)

• Air data rates: 4.8 kbps to 250 kbps

• Transparent UART bridge — the module acts like a virtual serial cable over the air

The modules are paired by default and automatically sync on the same Network ID and Baud rate, ensuring seamless link-up on first use.

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⚙️ SiK Firmware Capabilities

The SiK firmware loaded on the radio is open-source and supports:

• Adaptive TDM (Time Division Multiplexing): Each radio takes turns transmitting, reducing collisions.

• Auto Reconnect & Link Monitoring: Re-establishes dropped links without rebooting.

• AT Commands Interface: Easily change settings like TX power, net ID, and air speed from any serial terminal.

📌 Common AT Commands:

• ATI – Display firmware version

• ATS2=50 – Set transmit power to 100mW

• ATS4=64 – Set air speed (baud rate)

• AT&W – Write/save settings

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📶 Installation & Tuning Tips

✅ Optimal Installation Guidelines:

1. Air Unit Placement:

   • Mount away from ESCs, motors, and high-current lines

   • Prefer vertical antenna placement for omnidirectional signal pattern

2. Ground Unit Connection:

   • Plug into a USB port or telemetry radio port on a ground control computer or handheld GCS

3. Antenna Upgrades:

   • Replace stock rubber duck antennas with 433 MHz dipole, folding monopole, or Yagi for better gain

4. Use Heat Shrink & Velcro:

   • For protection and easy maintenance on drones in harsh conditions

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🛡️ Regulatory & Safety Notes (433 MHz Band)

• License-Free in many countries: 433 MHz is part of the ISM band (Industrial, Scientific, Medical), but in India, Europe, and Australia, it’s typically legal under specific power limits (e.g., <100mW).

• Restricted in North America: USA and Canada prefer 915 MHz. Use of 433 MHz for telemetry might violate FCC rules.

• Always verify local RF regulations to avoid legal complications or interference with other RF systems (like amateur radio).

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📍 Real-World Use Cases & Industries

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🧩 Integration with Other Systems

• Companion Computers: Easily link Raspberry Pi, Jetson Nano, or other onboard computers via UART.

• Telemetry to Internet Gateway: Can be connected to routers or LTE modules for remote drone telemetry streaming.

• Multipoint Communication: By configuring different NET IDs, multiple drones can be operated from a single GCS without interference.

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🧠 Troubleshooting Tips

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🛒 Ideal For:

• Drone Builders

• UAV Survey Teams

• FPV Pilots (using telemetry-based OSD)

• Pixhawk/ArduPilot/QGroundControl users

• Educational institutions teaching UAV systems

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🧾 Summary

The Holybro SiK Telemetry Radio V3 – 100mW 433 MHz is a robust, flexible, and community-supported telemetry solution that offers:

• Reliable data links over long distances

• Full compatibility with MAVLink drones and GCS software

• Easy configuration with wide community support

• Great value for medium-range UAV operations in legal frequency zones

  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:

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  1️⃣ DPIIT-Recognized Innovation

  • 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.

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  2️⃣ Tailored for Indian Farming Conditions

  • Their drone components—including GPS modules, landing gear, frames, and spraying systems—are designed and tested for Indian climates:

    • Heat, dust, and humidity-resistant

    • Compatible with crops like paddy, cotton, and sugarcane

  • Engineered specifically for Indian fields, not generic imports.

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  3️⃣ Complete Hardware Ecosystem

  • Lofty AgroTech provides GPS modules, drone frames, landing gear, sprayer accessories, flight controllers, and telemetry—all under one roof.

  • Ideal for building integrated systems that work seamlessly together from day one.

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  4️⃣ Plug-and-Play Convenience

  • Products like the NZ Mini GPS Module are pre-configured for Betaflight/Cleanflight, and hardware parts fit standard UAV systems perfectly.

  • No firmware flashing or awkward adapters—just plug, play, and fly.

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  5️⃣ Strong Local Support & Spare Parts

  • Fast shipping across India without customs delays.

  • Dedicated after-sales support via phone or chat—real help when you’re in the field or repairing.

  • Access to common spares, making downtime less likely.

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  6️⃣ Academic & Startup Partnerships

  • Lofty AgroTech collaborates with colleges, R&D centers, and agri-tech startups, providing drone kits, hardware training, and workshops.

  • Their products are trusted in STEM labs, contests, innovator incubators, and proof-of-concept tests.

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  7️⃣ Proven Quality & Real-World Performance

  • Uses industrial-grade components like u‑blox GPS chips, carbon fiber, and rugged nylon.

  • Field-tested in Indian conditions to ensure reliability for crop spraying, mapping, and monitoring.

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  8️⃣ Educator & Builder-Friendly

  • Their hardware encourages hands-on learning and experimentation without requiring advanced drone expertise.

  • 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

  .

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  💥 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.

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  🎓 Designed for Academia & R&D

  We actively collaborate with:

  • Engineering colleges for final year drone and mechatronics projects

  • Technical universities integrating UAVs into curriculum

  • Research institutions and innovation labs exploring drone-based solutions

  • 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.

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  🧑‍🏫 Exclusive Educational Discounts

  We offer special pricing structures tailored for learning environments:

  • Flat % discounts for verified student and faculty orders

  • Price waivers or bundle deals on bulk quantities and lab kits

  • Custom billing for college purchase departments and project grants

  • GST-compliant invoicing for smooth procurement workflows

  💡 Every rupee saved can be invested back into your learning journey.

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  🧰 Build Kits for Projects, Labs & Hackathons

  We supply custom FPV and drone kits designed for:

  • Final year projects on AI, computer vision, agriculture drones, etc.

  • Hackathons and technical fests where fast assembly and reliable parts matter

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  Each kit can include:

  • Frame + motors + ESCs + flight controller + camera

  • GPS + battery straps + antennas + GoPro mounts

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  🧩 Tell us your use-case — we’ll build the right kit for your classroom or competition.

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  🧑‍🔬 Documentation & Tech Support for Reports

  We assist students and mentors with:

  • Detailed datasheets and specs for every part purchased

  • Pre-filled or editable bill of materials (BOM) for submission

  • Reference photos, connection diagrams, and PID tuning guides

  • Help with design justification, component selection, and technical write-ups

  📘 Save time, avoid confusion, and meet academic documentation standards with our help.

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  🤝 Long-Term Collaboration Opportunities

  For colleges looking to scale their UAV programs, we provide:

  • Campus-wide drone lab setup consultations

  • Mentorship tie-ups with our engineering team

  • Joint research support in AI-agriculture, delivery drones, and aerial surveillance

  • 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.

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  🧠 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

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  📩 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.

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   Made for the Indian FPV Scene

  We understand the unique challenges Indian drone pilots and builders face:

  • Import restrictions and part availability

  • Delivery delays from international suppliers

  • 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.

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  🧠 One-Stop Drone Knowledge Hub

  We are more than sellers—we are curators, educators, and enthusiasts who live the drone lifestyle.

  • Frequent product launches & detailed guides

  • Real-world compatibility checks before shipping

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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.

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  💬 Community Over Commerce

  We’ve grown not by pushing sales—but by earning trust:

  • 5-star reviews from students, builders, and professionals

  • Trusted supplier for drone competitions, hackathons, and R&D grants

  • 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:

    • Freestyle FPV

    • Long-range drones

    • Survey drones for agriculture

    • Academic R&D projects

    🎯 Our credibility comes from hands-on experience, not marketing fluff.

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    🔚 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.
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    🚀 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.

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    🛠️ 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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    All from a verified brand. Delivered by experts. Supported by flyers like you.

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    🛒 Order Today from Lofty Agrotech

    When you buy from Lofty Agrotech, you’re choosing:

    • 💯 Original components

    • 🔧 Expert support at every step

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    • 🎓 Special support for students and academic builds

    ✅ In stock now. Limited quantities available. Ships within 24 hours.

  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)

  • Lofty Agrotech YouTube Channel

  Certainly! Here’s a comprehensive overview of Lofty Agrotech’s drone offerings and available drone parts: