Calian GNSS launches anti-jamming antenna for critical infrastructure, marine and defense

Calian GNSS has released its next-generation anti-jamming controlled reception pattern antenna (CRPA), the CR8894SXF+.

The CR8894SXF+ is an advanced CRPA, engineered to provide efficient interference protection and real-time situational awareness across critical infrastructure, marine, and defense environments where GNSS continuity is mission critical. The CRPA is specifically-designed to provide a low-power and lightweight solution in a compact size.

It features advanced in-band null forming to protect GPS L1/L2 and Galileo E1/E5b signals, helping ensure resilient positioning, navigation and timing in environments with contested, congested or degraded radio frequency conditions. The antenna incorporates Calian’s eXtended Filtering interference mitigation technology to maintain performance and reliability when RF threats are present.

The CRPA supports in-band null-forming of 20 dB to 40 dB and out-of-band rejection up to 80 dB across 700 MHz to 2,500 MHz. It includes two independent low-noise amplifier channels, allowing continued operation if one signal band is compromised.

The antenna forms nulls in both upper (L1/E1) and lower (L2/E5b) GNSS bands to actively suppress jamming sources. A serial output interface provides real-time feedback, enabling users to monitor RF conditions and system status. Outputs include:

• CRPA state: open (no jamming), protected (jamming mitigated), or closed (jammed but protected)
• Jammer characterization: azimuth and elevation angles of detected interference sources
• Summary of threat signals, offering rapid threat assessment for command and control

The CRPA series aims to set a new benchmark in operational resilience, offering advanced protection and intelligence for mission-critical GNSS applications.