Altitude
Resources

Advanced Solutions for Defense and Security

Martlet Radio Relay Module

Published:
16/01/25
News

Introduction

As modern defense and public safety operations evolve, long-range drones have emerged as critical force multipliers. At Height Technologies, our class-1 micro and mini drones (MTOW < 25 kg) combine lightweight design with advanced capabilities, making them ideal for covert missions where stealth, portability and reliability are important.

The maximal flight distance is merely one component of effective drone operations. Ensuring a secure and stable communication link is equally critical, especially during missions behind enemy lines. Adversaries will actively scan for radio frequencies to disrupt communications and pinpoint the location of drone operators. Therefore, maintaining robust communication systems is essential for mission success and operator safety.

How do multirotors compare to fixed-wing long distance drones?

While fixed-wing drones often boast impressive flight times, multirotor drones excel in adaptability and stealth. In situations where versatility and discretion are key, these agile machines take center stage, proving their worth in the skies. Their VTOL (Vertical Takeoff and Landing) capability and hovering precision mean they can be deployed rapidly from tight spots—such as building rooftops, ship decks, or forests—without the need for a more prominent takeoff spot.

  • Stealth Factor: Typically quieter and less visually conspicuous, multirotors reduce the chances of detection, a key advantage for covert ops.
  • Portability & Maneuverability: Small footprints and agile flight controls enable dynamic missions, like close-range reconnaissance or urban search and rescue.
  • Flexibility in Payloads & Sensors: Multirotor drones are generally more versatile when equipped with multiple types of payloads and specific sensors, such as an infrared camera for nighttime reconnaissance in combination with specialized chemical detection sensors.

 

Saving lives with the Remote Radio Module (RRM)

One of the innovations that truly distinguishes the Martlet Family of Systems is HEIGHT’s groundbreaking Remote Radio Module (RRM). In high-stakes missions, radio frequency emissions can compromise the location of drone operators.

The RRM mitigates this threat by:

  1. Shifting the Signal Origin: Placing the RRM away from your command station keeps the pilot’s exact location off the adversary’s radar.
  2. Reducing Risk of Discovery: If opponents attempt to trace and target the radio signals, they’ll locate the RRM rather than the primary operating crew. This separation can be a lifesaver in hostile environments.
  3. Boosting Radio LOS: Elevating the RRM high above ground helps maintain a long-distance drone communication link, which is crucial for extended missions and challenging terrains.
  4. Supporting Covert Missions: By keeping operations discreet, you safeguard equipment and personnel, lowering the chance of interception or counterattacks.

 

 

Distinguishing Drone Range from Radio Range

When discussing long-range military drones, it’s important to differentiate two concepts:
  • Flight Range Per Battery: How far and long the drone can fly on a single charge. Terrain, weather, and payload all factor into achievable distances.
  • Maximal Radio Range: How far a drone can travel before losing communication with the operator. Even if a drone can theoretically fly 50 km, if the communication link only supports a 5 km radius, the mission is limited to that 5 km area unless you employ game-changing solutions like the RRM.

 

 

Applications in Defense and Security

Height Technologies’ long-distance drones find utility across various missions:
  • Covert Reconnaissance: Hover at safe distances without revealing operator positions, aided by the RRM.
  • Border Surveillance: Monitor large areas in real time; a stealthy approach ensures minimal detection.
  • Search and Rescue: Deploy in rugged terrains quickly, hovering precisely where needed for thorough coverage.
  • Infrastructure Assessment: Investigate critical facilities without exposing the ground crew to potential threats.
In each of these missions, military multirotor drones offer the agility and discretion—especially when maintaining stealth is paramount.

 

Why the Martlet long-range drones stand out

  1. Innovative RRM Integration: Our unique RRM feature elevates your mission safety and success rate by keeping radio communications covert and secure.
  2. NATO-Class Performance: We adhere to stringent NATO standards, ensuring that our class-1 drones provide top-notch reliability under demanding conditions.
  3. Modular, Open-Architecture Design: Easily configure and update your drone with custom payloads—thermal cameras, LiDAR, or specialized sensors for mission-specific needs.
  4. Proven Track Record: Defense and public safety agencies worldwide trust Height Technologies’ drones to deliver consistent results under the most challenging scenarios.

 

 

Conclusion

When every second and every decision count, having the right drone platform can make the difference between success and jeopardizing lives. With multirotor long-range drones, you get the flexibility, stealth, and adaptability needed for dynamic missions—especially when coupled with our Remote Radio Module to ensure covert and secure operations.

 

Ready to take your mission capabilities to the next level?

Contact us and learn how the Martlet family of Systems and RRM integration can save lives and revolutionize your defense or public safety efforts.

Contact our team