APNT & Navigation Components
Resilient Navigation Solutions for GNSS-Challenged Environments
Assured Positioning, Navigation and Timing (APNT) enables platforms to maintain accurate, continuous and trusted navigation when conventional GNSS signals are degraded, obstructed, jammed, spoofed or completely unavailable. Defense, aerospace, autonomous and mission-critical systems therefore require resilient navigation architectures that combine protected GNSS reception, interference detection and mitigation, inertial navigation and reliable navigation aiding data.
General Guidance provides advanced APNT solutions, anti-jamming and anti-spoofing technologies, high-precision GNSS receivers and specialized navigation components from JAVAD GNSS and Inertial Labs, a VIAVI Solutions company. These complementary technologies help improve the availability, integrity and continuity of positioning, navigation and timing data across aerial, ground, maritime, railway and space applications.
JAVAD GNSS offers compact, multi-frequency and multi-constellation OEM receivers, integrated GNSS/IMU solutions and specialized OEM antennas for demanding navigation and positioning applications. The portfolio includes the TR, TRE and TRH product families, supporting precise positioning, GNSS heading, attitude determination, signal-integrity monitoring and integration into aerial, autonomous, industrial and space-based platforms.
The Inertial Labs APNT portfolio includes TwoSents, an Anti-Jamming and Anti-Spoofing Electronics Module, and the M-AJ-QUATRO PRIME Anti-Jamming Advanced Antenna System. M-AJ-QUATRO PRIME uses Controlled Radiation Pattern Antenna (CRPA) technology and advanced signal processing to suppress interference and support reliable multi-band, multi-constellation GNSS reception in contested electromagnetic environments.
The portfolio also includes the Inertial Labs Air Data Computer (ADC), which provides essential air data parameters, including pressure altitude, airspeed, air density and outside air temperature. Its compact and lightweight design supports integration into fixed-wing aircraft, VTOL platforms and UAV navigation and flight-control systems.
These APNT technologies and navigation components can be deployed individually or integrated into wider navigation architectures combining GNSS receivers, Inertial Navigation Systems, autopilots, mission computers and external sensors.
General Guidance helps customers select and integrate the appropriate APNT, anti-jamming, anti-spoofing and navigation support technologies for their platform and operational requirements.
APNT, Anti-Jamming & Navigation Support
M-AJ-QUATRO PRIME
Multi-Band CRPA Anti-Jamming Antenna System.
M-AJ-QUATRO PRIME combines Controlled Radiation Pattern Antenna technology with advanced signal processing to suppress wideband and in-band interference across L1, L2, L5 and optional L6 GNSS bands. It provides adaptive digital nulling, jammer direction finding and interference suppression of up to 70 dB for resilient PNT in contested environments.
TwoSents
Anti-Jamming and Anti-Spoofing Electronics Module.
TwoSents is a patented APNT electronics module designed to detect, mitigate and filter multiple sources of GNSS jamming and spoofing. It supports multi-band, multi-constellation operation, adaptive digital filtering, low latency and interference suppression of up to 50 dB, with compatibility across Inertial Navigation Systems and autopilot platforms.
TR-2S AJ
Anti-Jamming GNSS Receiver with Spoofing Detection.
The TR-2S AJ is a compact OEM GNSS board with multi-frequency, all-constellation tracking, patented jamming and spoofing detection, and in-band interference rejection. It provides up to 30 dB of jamming suppression and positioning output rates of up to 200 Hz for demanding embedded applications.
Air Data Computer (ADC)
Compact Stand-Alone Air Data Computer.
The Inertial Labs ADC is an IP67-rated device that calculates pressure altitude, calibrated and true airspeed, Mach number, air density and outside air temperature. Its compact, lightweight and low-power design supports straightforward integration with Inertial Labs navigation systems and external sensors for UAV, fixed-wing and VTOL applications.
OEM GNSS Receivers
TR-DI HDA
Dual-Antenna OEM GNSS Receiver for LEO Applications
TR-DI HDA is a compact OEM board with Dual-antenna GNSS Heading and high-speed ports for IMU interfaces to deliver GNSS/INS solutions for Low Earth Orbit applications under typical radiation exposure.
TR-3S
Multi-Constellation OEM GNSS Receiver with Jamming and Spoofing Detection
The TR-3S is a small-sized OEM GNSS board with 874 channels for all-in-view tracking capability of multi-constellation, multi-frequency GNSS. Patented anti-spoofing and jamming detection allow deployment in the most demanding environments together with a full suite of interfaces
TR-3S DUO
Dual-Antenna OEM GNSS Receiver with Jamming and Spoofing Detection
TR-3S DUO is a small OEM GNSS board with dual antenna inputs for GNSS Heading. The footprint is suitable for any application requiring precise positioning and heading within a compact size.
TR-2S
Compact OEM GNSS Receiver with Spoofing Detection.
Speed, accuracy, and compactness make the TR-2S the ideal board for any integration in demanding applications in the aerospace, small robotics, and UAV industries.
TR-2S LEO
Radiation-Tolerant OEM GNSS Receiver for LEO Applications
TR-2S LEO is a compact GNSS board customized to deliver centimeter-level positioning accuracy with SpaceStar in Low Earth Orbit while under typical radiation exposure. Patented anti-spoofing and jamming detection provides operational reliability without user intervention.
TRE-3S
High-Precision Multi-Constellation OEM GNSS Receiver.
The TRE-3S is a high-performance OEM GNSS board with 874-channel all-in-view tracking, spoofing detection, advanced multipath reduction and in-band interference rejection. It supports GNSS heading and attitude determination, flexible communication interfaces and optional positioning output rates of up to 200 Hz for demanding integration applications.
TRE-DUO-IMU
Dual-Antenna GNSS Receiver with Integrated IMU.
The TRE-DUO-IMU is an all-constellation OEM GNSS receiver combining dual-antenna GNSS heading with an integrated MEMS IMU for roll and pitch measurements. It provides RTK positioning, full 3D attitude, jamming and spoofing detection, advanced multipath rejection and flexible interfaces for streamlined system integration.
TRE-Quattro
Four-Antenna OEM GNSS Receiver for Precision Attitude Determination.
The TRE-Quattro is a high-performance OEM GNSS board with four antenna inputs and 864-channel multi-constellation satellite tracking. It provides real-time positioning and attitude determination, spoofing detection, advanced multipath reduction, fast signal acquisition and flexible interfaces for integration into demanding navigation and orientation systems.
TRH-G2P
Compact Single-Frequency OEM GNSS Receiver.
The TRH-G2P is a 216-channel OEM GNSS board designed for precise positioning and embedded system integration. It supports GPS L1 and SBAS, with optional Galileo, BeiDou and QZSS tracking, together with spoofing detection, advanced multipath reduction, fast signal acquisition and optional RTK positioning rates of up to 100 Hz.
OEM GNSS Antennas
GrAnt-3L OEM
High-Performance Multi-Constellation OEM GNSS Antenna.
The GrAnt-3L OEM is a versatile GNSS antenna designed for straightforward integration into high-precision positioning systems. It supports GPS, GLONASS, Galileo, BeiDou, QZSS and regional augmentation systems, together with L-Band reception, for reliable multi-frequency tracking across demanding OEM and system-integrator applications.
SpaceAnt-G3, SpaceAnt-G3T
Wide-Band OEM GNSS Antenna for LEO Applications.
SpaceAnt is a compact and robust GNSS antenna designed for reliable multi-constellation and L-Band signal tracking in Low Earth Orbit environments. It features a stable phase center, extended operating temperature range and out-of-band rejection, with single- and triple-frequency versions available for integration with small satellites and space-based navigation systems.