Radio Altimeters
VIAVI produce state of the art Radio Altimeters (RADALT) which are available for purchase.
A radar altimeter (RA), radio altimeter (RALT), electronic altimeter, or reflection altimeter measures altitude above the terrain presently beneath an aircraft or spacecraft by timing how long it takes a beam of radio waves to travel to ground, reflect, and return to the craft.
Only RF-Based Portable Radio Altimeter Flight Line Test Set
The Viavi ALT-8000 is the world's first and only RF-based portable radio altimeter flight line test set. It weighs approximately 10 lbs. (4.5 kg) with a large 12-inch colour touch-screen, making it easy to use.
FMCW/Military Pulse Radio Altimeter Test Set
The Viavi ALT-8015 Radio Altimeter Flightline Test Set provides an easily configurable RF based altitude simulation to quickly test an installation, or direct connect to the Line Replaceable Unit (LRU) for additional troubleshooting capability.