Why Use 76-81GHz in a Visual Fusion Radar Level Meter?

The frequency band determines both resolution and anti-interference capability of a radar level meter. Ecolor's visual fusion radar water level gauge uses 76-81GHz FMCW technology, and the 4GHz sweep bandwidth is the underlying reason it achieves ±1mm accuracy — distance resolution is inversely proportional to bandwidth, so a wider band separates adjacent echoes more cleanly.

• Tiny dead band: millimeter-wave RF chip with an integrated lens design reduces the blind zone to as low as 10cm, keeping data valid in shallow channels and low-water conditions;
• Narrow beam: -3dB beam angle of 14° horizontal / 10° vertical keeps clutter from well walls, brackets and cables outside the main lobe — no careful aiming required during installation;
• High SNR: the high band and wide bandwidth reliably extract weak water-surface echoes, so readings stay continuous even with foam or vapor.

Compared with common 26GHz pulse radar, the shorter wavelength allows a much smaller antenna aperture for the same beam angle, which is precisely why a 5-megapixel camera can be integrated into the same enclosure. Data output is RS485, connecting directly to EC32 or EC60 RTUs to build 4G/NB-IoT remote monitoring stations.

For more details, visit our product pages or contact our technical team.