Avionics
FreeFlight’s 5G-Tolerant Radar Altimeter Gains TSO Certification
The RA-4500 MK II resists 5G interference
Freeflight RA-5500 Terrain Series Radar Altimeter
Photo: Freeflight

FreeFlight Systems’ Terrain Series RA-4500 MK II radar altimeter has received Technical Standard Order (TSO) certification, the company said on the opening day of NBAA-BACE 2023.

Designed as a drop-in replacement for RA-4000 and RA-4500 radar altimeters installed before the emergence of spurious C-band interference caused by 5G network transmissions, the RA-4500 MK II simplifies retrofit installations by supporting existing antennas, control heads, and cabling. For more display options, FreeFlight offers the RAD45 standalone indicator, which meets EASA AMC1 SPA.NNVIS.110(b) guidelines.