The HELZEL high-frequency over-the-horizon radar OTHR employs fast and accurate beam-forming algorithms with automatic self-calibration technique.

The low-noise non-interrupted FMCW operation mode provides 

the best range / power performance on the OTHR market. 

This allows operation with quite low power levels 

(1000 Watts) to get a range of 200 Nautical Miles. 

The OTHR System can be used for ship detection and tracking beyond the Horizon.

Protect your EEZ with the unique OTHR technology. 

HELZEL-OTHR systems in general can be used for oceanographic applications as well providing additional valuable data for applications like Tsunami Warning and Search & Rescue.