Low Elevation Angle Nulling Antenna (LEANA)

The C-Nav977XF Low Elevation Angle Nulling Antenna (LEANA) is engineered to deliver robust GNSS performance in environments prone to interference. Supporting multiple GNSS constellations and frequencies, the LEANA is purpose-built to suppress jamming signals from near-ground-based transmitters.

Its advanced radiation pattern provides typical wideband suppression of 20 dB for all GNSS band signals received at elevation angles from 0° to approximately 15°. This enables the antenna to operate up to 10 times closer to interference sources than standard antennas—without signal degradation. This antenna can mitigate some ground-based jamming signals compared with a standard GNSS antenna (E.g. C-Nav289). For more sophisticated jamming mitigation, end users should consider deployment of a Controlled Radiation Pattern Antenna (CRPA).

Combining low elevation angle nulling with deep filtering and high linearity technologies, the C-Nav977XF LEANA delivers exceptional resilience against RF noise and jamming. It is ideal for mission-critical positioning, navigation, and timing applications.