Understand the risks
High-powered 5G signals can interfere with low range radio altimeter
functionality in aircraft. This interference could result in misleading altitude
information going to the pilot, potentially creating a very dangerous situation.
Low range radio altimeters (LRAs) determine the vertical distance between the
aircraft and the ground when that distance is less than 5,500 feet. This information is used during initial
approach, final approach and autoland. LRAs were not originally designed to
operate with high-power interference in directly adjacent bands.
As the telecom industry powers up 5G near airports in the coming months,
aircraft will be required to meet newly defined specifications, certification
and performance requirements set by the Federal Aviation Administration (FAA).
If your aircraft does not meet the new specifications, you could face additional
route restrictions and diversions, causing costly delays.
Understand the solution
Collins Aerospace has the solution – available now. Our radio altimeters have
been tested and proven to be resilient against high levels of 5G interference.
Is your fleet currently equipped with one of our LRAs? Upgrade it with a
simple filterable solution, Collins' LRA-900+. The LRA 900+ is designed to
fulfill new 5g interference requirements without additional cabling, wiring or
Our LRA-2100 is a radio altimeter that provides precise, digital height
measurements above terrain during aircraft approach, landing and climb-out
phases of flight, reducing the possibility of 5G interference. Aircraft fitted
with the LRA-2100 provide trusted altitude information to the automatic flight
control system, instrument system, and terrain awareness and warning system.
This accurate information greatly improves flight safety.
We support aircraft manufacturer Alternate Means of Compliance (AMOC) by
offering future-ready solutions for 5G interference. As the Radio Technical
Commission for Aeronautics (RTCA) and the FAA release long-term 5G tolerance
criteria in the near future, Collins Aerospace will continue to support our
customers with reliable solutions that meet industry requirements.