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Altimeter radar KRA-405B
for aircraftairborne

altimeter radar
altimeter radar
altimeter radar
altimeter radar
altimeter radar
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Fly with confidence with one of the most widely used and proven radar altimeters on the market. The KRA-405B radar altimeter (RADALT) is a lightweight, solid-state, airborne altimeter that provides accurate altitude measurements above terrain during various portions of flight. With more than 10,000 produced and sold to date and more than four million service hours, the KRA-405B RADALT has proven to be one of the most reliable and industry proven radar altimeters available, even in the modern 5G environment. Key Benefits: Frequency: 4.2 GHz to 4.4 GHz Operating range: 0 to +2500 feet Accuracy: ± 3 ft or ±3%, 500ft. Analog and digital outputs Temperature range: -55°C to 70°C (operating), -55°C to 85°C (non-operating) Size: 3”x3.5”x11” Weight: 3 pounds TSO C87/ETSO-2C87 (1997) airborne low-range radio altimeter DO-160B (environmental conditions and test procedures for airborne equipment) DO-155(minimum performance specification - airborne low-range altimeters) DO-178B Level A (software considerations in airborne systems and equipment certification) Performance Within 5G Cellular Environment In collaboration with the FAA and RTCA, Honeywell has performed radio frequency testing on the KRA405B radar altimeter to assess its ability to meet its minimum operating performance specifications when subjected to radio frequency energy from 5G cellular base stations. The KRA-405B requires the installation of an external bandpass filter between the radar altimeter receive antenna and the radar altimeter receive input. The external bandpass filter reduces the unit’s susceptibility to interference from 5G base stations.


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