5G Tolerant Radar Altimeter
Overview
Introduction
FreeFlight Systems’ TERRAIN SERIES radar altimeters deliver precise, high-integrity altitude data across all aircraft types—from legacy fleets to next-generation platforms — ensuring confident decision-making in every flight phase.
Your needs
Pilots and operators need dependable altitude information in all phases of flight, particularly during low-altitude operations, approaches, and landings. Despite assurances that 5G networks would not impact radar altimeters, real-world operations have revealed issues such as erratic altitude indications, unexpected autopilot disengagements, and false terrain alerts—even in areas without published restrictions. In increasingly RF-dense environments, operators require radar altimeter solutions that are specifically engineered to withstand 5G C-Band interference and ensure consistent, accurate altitude data when it matters most.
Your benefits
- Efficient: 5G C-Band resistance with advanced RF filtering and DSP
- SWaP Optimized: Small, lightweight (≤ 1.3 lb / 0.59 kg), Low power
- Versatile: Analog output for legacy aircraft (RA-5500 and RA-6500)
- High-Fidelity: High update rate (25 Hz minimum) for real-time altitude data
- Retrofit-Ready: Minimal impact to existing antennas, indicators, and cabling
- Flexible: Multi-interface support (RS-485/422, RS-232, ARINC 429, 552A)
- Display-Friendly: Single install capable with glass displays or RAD-45/RAD-40
- MOPS Compliant: Meets AD 2023-10-02 and 2023-11-07 requirements
- Globally Approved: TSO-C87a, DO-160G, and DO-178C Level B certified
Product Description
The TERRAIN SERIES radar altimeters from FreeFlight Systems set a new standard for precision altitude-above-ground data in today’s increasingly complex RF environment. Engineered from the ground up with advanced Digital Signal Processing (DSP) and rugged hardware, these units provide 5G C-Band interference resistance and reliable AGL altitude measurements critical for approaches, landings, and low-level operations. With TSO certification, multi-interface connectivity, and seamless retrofit integration into legacy aircraft systems, the TERRAIN SERIES delivers mission-ready performance and enhanced safety across fixed-wing, rotorcraft, business, and transport platforms.
Your benefits
- Efficient: 5G C-Band resistance with advanced RF filtering and DSP
- SWaP Optimized: Small, lightweight (≤ 1.3 lb / 0.59 kg), Low power
- Versatile: Analog output for legacy aircraft (RA-5500 and RA-6500)
- High-Fidelity: High update rate (25 Hz minimum) for real-time altitude data
- Retrofit-Ready: Minimal impact to existing antennas, indicators, and cabling
- Flexible: Multi-interface support (RS-485/422, RS-232, ARINC 429, 552A)
- Display-Friendly: Single install capable with glass displays or RAD-45/RAD-40
- MOPS Compliant: Meets AD 2023-10-02 and 2023-11-07 requirements
- Globally Approved: TSO-C87a, DO-160G, and DO-178C Level B certified