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NTTIM Ultra-Miniature Satellite Navigation GNSS Anti-Jamming Terminal
NTGIM-4B Multi-Constellation GNSS Anti-Jamming All-in-One Terminal
NTAJB 4-Channel Satellite Navigation Anti-Jamming Processor
The NTAJB is a compact, high-performance GNSS anti-jamming solution engineered to ensure uninterrupted positioning, navigation, and timing (PNT) for unmanned aerial vehicles (UAVs) and industrial automation platforms. As a Size, Weight, and Power (SWaP)-optimized interference suppression processor weighing just 62 g, this module effectively mitigates high-power RF interference while supporting configurable GPS and BDS satellite constellations, providing reliable navigation continuity in complex electromagnetic operational environments.
- Core Technologies and Key Advantages:4-Element CRPA Architecture: Utilizes a standard 4-element Controlled Reception Pattern Antenna (CRPA) RF spatial signal processing framework powered by advanced spatial nulling algorithms.
- Superior Interference Mitigation:Achieves a single CW jammer suppression depth of ≥ 110 dB J/S and maintains ≥ 95 dB J/S suppression across three concurrent jamming sources.
- Multi-Constellation Flexibility:Supports dynamic software configuration across major GNSS bands, including GPS L1/L2/L5 and BDS B1/B2/B3, ensuring seamless compatibility with industrial navigation receivers.
- SWaP-Optimized Hardware Design:The ultra-miniature 70 mm × 54 mm × 11 mm mechanical housing and 62 g weight enable rapid hardware integration into size- and weight-limited airborne enclosures.
NTAJB 4-Channel GNSS Anti-Jamming Processor Overview
The NTAJB Anti-Jamming Processor is a 4-channel satellite navigation anti-jamming processor that supports four-element RF signal processing. It possesses suppression capability for suppressive jamming in various forms, including broadband, narrowband, frequency-sweeping, pulse, and combined jamming. Its processing frequency points and bandwidth are dynamically configurable, supporting anti-jamming processing for frequency points such as GPS/BDS L1/L2/L5 and BDS B1/B2/B3. Adopting a low-cost, miniaturized, and lightweight design, it is suitable for precise navigation needs in complex electromagnetic environments, with performance especially in the UAV field.
NTAJB 4-Channel GNSS Anti-Jamming Processor Primary Capabilities
- Flexible Multi-Frequency Processing: Deploys dynamically configurable processing frequency points and bandwidth metrics supporting supporting GPS L1/L2/L5 and BDS B1/B2a/B2b/B3.
- High-Depth Suppression: Yields a dedicated protection threshold reaching single interference mitigation ≥110dB and three concurrent interference directions ≥95dB.
- Broad-Spectrum Waveform Filtering: Identifies and dampens multiple variations of suppressive signal threats including broadband, narrowband, pulse, frequency-sweeping, and combined jamming.
- Multi-Directional Mitigation: Executes spatial nulling filters capable of resisting simultaneous localized interference arriving from up to 3 different directions.
NTAJB 4-Channel GNSS Anti-Jamming Processor Technical Data Matrix
| Engineering Parameter | Technical Specification Value |
|---|---|
| Input Signal Channel | 4 channels, maximum +10 (dBm) |
| Output Signal Channel | 1 channel, range -70 to -40 (dBm) |
| Input AGC | Supported |
| Operational Processing Modes | M0: L1/B1 (1559-1606 MHz), M1: L2 (1227.6 ± 1 MHz), M2: L5/B2a (1176.45 ± 12 MHz), M3: B2b (1207.14 ± 10 MHz), M4: B3 (1268.52 ± 10 MHz) |
| Concurrent Anti-Jamming Count | Up to 3 different directions simultaneously |
| Anti-Jamming Capability Depth | Single interference ≥110dB, Three interferences ≥95dB |
| Hardware Data Interface | RS422 / UART (LVTTL) |
| Operational Voltage Input | 5 to 14Vdc |
| Rated Power Consumption | 10W |
| Total Hardware Weight | 62g |
| Device Dimensions Profile | 70x54x11±0.5 (mm) |
| Operating Temperature Range | -40°C to +70°C |
NTAJB Compact Enclosure Mechanical Dimensions / Structural Profile
The mechanical chassis of this 4-channel GNSS anti-jamming processor features a total volumetric footprint of 70x54x11mm with a strict dimensional tolerance of ±0.5mm. Weighing only 62g, the aluminum shielding structure reduces payload mass and integration complexity. Symmetrical mounting layout is handled via 4x Φ3.2mm hardware through-holes spaced accurately at 65mm×49mm to permit secure lock-down alignment within lightweight airborne trays.
Figure 1: Outline drawing detailing the 70mm width, 54mm depth, and 11mm thickness casing envelope, emphasizing the 65mm by 49mm spacing grid for the four 3.2mm diameter mounting holes.
NTAJB JL126-2-12ZJW Interface Blueprint & Pinout Assignments
| Pin Number | Signal Designation | Input / Output Type | Functional Description |
|---|---|---|---|
| 1 | GND | Ground | Shared Power and Signal Ground Connection Path |
| 2 | VIN+ | Input | Main DC Power Supply Input Line (5 to 14Vdc Operational Range) |
| 3 | RS422-TXP | Output | Primary Transmit Positive Line (Tx+) for Differential Telemetry Data |
| 4 | RS422-RXP | Input | Primary Receive Positive Line (Rx+) for Differential Configuration Link |
| 5 | UART_TX | Output | Universal Asynchronous Transmit Line (Tx) for System Communications |
| 6 | GPI | Input | General Purpose Input Connection Pin |
| 7 | GND | Ground | Shared Power and Signal Ground Connection Path |
| 8 | VIN+ | Input | Redundant DC Power Supply Input Line (5 to 14Vdc Operational Range) |
| 9 | RS422-TXN | Output | Primary Transmit Negative Line (Tx-) for Differential Telemetry Data |
| 10 | RS422-RXN | Input | Primary Receive Negative Line (Rx-) for Differential Configuration Link |
| 11 | UART_RX | *N/C* | Universal Asynchronous Receive Line (Rx) for System Communications |
| 12 | GPO | Output | General Purpose Output Connection Pin |
NTAJB Industrial 4-Channel GNSS Anti-Jamming Processor Application Scenarios
- Airborne Embedded Systems Integration: Delivers multi-frequency link protection inside low-cost industrial UAVs, stabilizing position hold locks during pipeline mapping and power transmission tower corridor mapping.
- Intelligent Robotic Vehicles: Mitigates localized radio frequency masking and multipath signal degradation for automated field robots operating near heavy factory generation facilities.
- Remote Telecommunication Nodes: Safeguards precision clock synchronization components in base stations against severe environmental interference sweeps, ensuring stable multi-constellation timing tracking.
- High-Resilience Industrial Navigation Equipment: Acts as an inline hardware filtering module for maritime tracking systems and infrastructure sensors requiring uninterrupted location data down to sub-optimal signal levels.
Engineering Integration Guidance Note: Review our comprehensive GNSS Anti-Jamming Systems & Processors portfolio to cross-reference multi-element terminal layouts, assess dynamic signal suppression bandwidths, or download complete hardware communication interface control documents (ICD) directly from our technical support desk.
