3iDIRECT

3iDIRECT is a hardware anti-jamming add-on device developed by RECTANGLE Sp. z o.o. that sits at the start of the GNSS signal-processing chain, protecting navigation and timing receivers from interference in real time. It covers 180 MHz across all GNSS L-band RNSS services — the widest protection range claimed on the market — supporting GPS, Galileo, GLONASS, BeiDou, IRNSS, QZSS and SBAS signals. The device detects, recognises and mitigates pulsed, continuous, narrow-band, wide-band and complex interferences through a combination of analogue and digital out-of-band protection with continuous parallel adaptive active in-band filtering, delivering nominal wideband suppression greater than 40 dB. It connects inline via SMA RF ports (input and output), requires no redesign of existing GNSS installations and is powered by 9–15 VDC. Typical applications include critical infrastructure timing, transportation navigation, telecommunications synchronisation and public-security/crisis-management systems requiring resilient satellite-based positioning and time distribution.