Aviation's Panel Mount Avionics Installation Leader

Save Time and Money with the RA-6500

The all-new RA-6500 is designed as a replacement for legacy radar altimeters in the business jet and heavy rotorcraft market. Engineered at design assurance level B, the RA6500 takes core FreeFlight technologies of robust and reliable avionics further into the business jet and heavy rotorcraft market.

State-Of-The-Art Radar Altitude and Digital Signal Proccessing

Designed for business, regional, airline transport, and heavy rotary wing aircraft platforms, the RA-6500 provides enhanced features like DSP-based RF processing design, and also operates in higher altitudes, across a wider temperature range. The system can also be customized to meet UAS payload requirements.

  • Rugged enclosure allows for use in harsh environments.
  • Dual install capable and integrates with popular compatible glass displays and legacy analog indicators.
  • Provides enhanced features such as DSP-based RF processing design.
  • TSO-certified (TSO-C87a) and approved to DO-160G, DO-178C Level B.
  • Supports RS 485/422, RS-232, ARINC 429, and Ethernet connectivity.


-Width: 3.06 in. (77.7 mm)
-Depth: 6.78 in. (172.2 mm)
-Height: 3.15 in. (80.0 mm)


1.90 lb (862 g)


FMCW at 4.2 GHz center frequency, 100 MHz sweep at 4.25 to 4.35 GHz

Altitude Range

-20 to 2500 ft. (minimum)

Altitude Accuracy

0 to 100 ft. ≤±3 feet, 100 to 500 ft. ≤ 3%,500 to 2500 ft. ≤ 5%

Operating Temperature

-55°C to 85°C

Transmitter Power Output

100mW, nominal, FMCW (typical)

Service Ceiling

55,000 ft.

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California Residents:

Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.