The Altimeter Optical Delay Line (ALT ODL) from RFOptic is a high-performance system for testing and calibration of radar altimeter systems. This RADAR Altimeter Test solution provides a high-performance solution for testing and calibrating Altimeter RADAR systems. It allows the user to replicate the landing and taking off of planes with real-time accuracy for training pilots.
The system converts an RF Signal from 0.5 MHz to 6 GHz into a modulated optical signal, which is then transmitted into a single-mode fiber, creating a fixed time delay defined by the fiber length corresponding to a desired altitude. The optical signal is then converted back into an RF signal that is identical to the input RF signal. The unit has a delay accuracy of 0.1% and Amplitude Control with 30 dB LNA on/off as well as 0.5 dB step 31.5 dB input and output attenuators.
The ALT ODL can be configured to emulate a single altitude or more than 4,096 altitude steps (12 bits) with a minimum step of 0.5 ft (15cm). RFOptic's ODL unit is available as a compact solution with local control and monitoring provided through the front panel LCD, and navigation switch. The remote control is available through a USB interface using the RFOptic App or over Ethernet Interface using HTML/SNMP/REST protocols. For system integration, USB or REST API and MIB are provided. Direct TTL option is also available when sub-millisecond fast switching is required.
