To meet the need of customers, we have launched our high-frequency Altimeter Optical Delay Line (ALT ODL) to provide a high-performance solution for testing and calibration of radar altimeter systems. The ALT ODL is part of the RFOptic’s family of Optical Delay lines.

RFOptic’s ALT ODL unit is a compact solution, which provides superb signal performance and altitude simulation accuracy with an ultra-silent operation.

The ALT ODL can be configured to emulate a single altitude or up to 4,096 altitude steps.

The Altimeter ODL offers very high accuracy up to 0.3ns for altitude steps under 6ft and > 0.1% above. The maximum altitude can reach 100,000 feet or 30Km in one enclosure.

For more information, please visit the ALT ODL webpage and download the ALT ODL data sheet.

Key Features:

  • Altitude range 1 to 100,000 feet
  • Display Delay, Round-trip Distance, Range or Altitude
  • Customizable Steps
  • Supports frequencies from DC up to 6 GHz
  • Pulse and CW
  • Delay accuracy of 0.1%
  • Customized solution with short delivery time
  • High Dynamic Range
  • Excellent Phase Noise
  • USB API for automated tests


  • RF and Optical bypass
  • DC Power
  • External Delay
  • Amplitude Control
  • Optical Power Meter
  • Built-in diagnostics


  • Managed remotely by software or manually via a navigation switch


  • Radar Calibration Testing
  • Altimeter

Customers who are looking for life demo and would like to make a field trial are invited to contact RFOptic at

For general request, interested parties can also summit a contact form via our website