Valiant Communications validates Dual-Band Anti-Jamming & Anti-Spoofing GPS and
NavIC NTP Time Server for Indian Armed Forces.

Valiant Communications Ltd. (VCL), a leading Indian OEM, has successfully carried out a field evaluation of its VCL-2156 Dual-Band GPS and NavIC NTP Time Server for the Indian Armed Forces, validating its capability to provide secure and resilient timing even under hostile GNSS environments.

The evaluation assessed system behaviour during normal satellite operation, deliberate signal jamming, and coordinated spoofing attempts across both L1 and L5 frequency bands. Under all conditions, the NTP server maintained continuous and accurate synchronization for connected network clients, demonstrating strong immunity to both single-band and dual-band interference.

The platform’s anti-spoofing intelligence effectively detected and rejected falsified satellite signals, ensuring that neither system time nor positional data was compromised. Once interference was removed, the system automatically restored full GNSS operation, highlighting its rapid recovery and autonomous resilience.

Indigenous, Secure GNSS Timing for Defence and Critical Infrastructure:

Valiant Communications Ltd. delivers indigenous GPS/NavIC-based NTP Time Server solutions engineered for high-security and critical infrastructure environments. The VCL-2156 supports dual-band L1 and L5 reception with GPS, GLONASS, Galileo, and NavIC, enabling advanced signal verification, interference awareness, and resilient time delivery.

Trusted GNSS timing plays a vital role in defence operations, aviation systems, power grids, banking networks, telecom infrastructure, and financial trading platforms, where precise and trustworthy timestamps are essential. GNSS disruption—whether intentional or accidental—can compromise system integrity, disrupt operations, and expose networks to security threats.

“Accurate and trustworthy time is a foundational requirement for modern defence and critical infrastructure systems. This successful PoC for the Indian Armed Forces demonstrates that the VCL- 2156 can sustain precise time synchronization even in the presence of sophisticated GNSS threats. Our dual-band, multi-constellation architecture with built-in anti-jamming and anti-spoofing capabilities reflects our commitment to delivering secure, indigenous timing solutions designed for real-world operational environments.” said Mr. Inder Mohan Sood, CEO and CTO, Valiant Communications Ltd.

Advanced GNSS Security Architecture
The VCL-2156 NTP Time Server integrates a comprehensive GNSS security framework that includes:

• Identification and suppression of spoofed satellite signals
• Algorithm-driven verification of signal structure, codes, and timing
• Dual-band L1/L5 correlation with intelligent fallback mechanisms
• Multi-constellation tracking to minimize dependency on a single GNSS source
• Readiness for future support of authenticated GNSS services using cryptographic validation

The successful PoC for the Indian Armed Forces confirms that the VCL-2156 NTP Time Server delivers robust, secure, and dependable time synchronization even in challenging GNSS threat scenarios. This milestone reinforces Valiant’s ability to support defence and national security programs with high-reliability, indigenous timing solutions built for modern threat environments.

About Valiant Communications: Valiant Communications is a manufacturer of a comprehensive range of IT and OT products and solutions which are used to provide end-to-end communication, transmission, protection, synchronization, data storage, and cyber-security to Government organizations, Utilities, Defence and the Transport sectors. VCL is an approved manufacturer to various reference customers across the globe, with track record of successful installations of its communications, transmission, protection, synchronization and cyber-security solutions in over 110 countries.