Choosing the right Small Caliber Anti-Jamming Terminal (SH-K66) can directly impact the stability and accuracy of your navigation system. The key lies in understanding several core specifications - element number, frequency band, J/S, size, and power consumption. Each of these determines how effectively the terminal resists interference, how flexible it is for integration, and how well it performs in dynamic environments such as drones, mobile vehicles, or unmanned platforms.
In this article, we'll break down what these parameters mean, how to interpret them when comparing different models, and provide a simple comparison chart to help you make an informed decision.
The Key Specifications
1. Element Number: More element, Better Protection
The number of element (for example, 4-element or 8-element) directly relates to how many signal paths the terminal can process at the same time.
- 4-element terminals (like SH-K66) are compact and suitable for small drones or mobile platforms.
- 8 or 16-element terminals provide higher precision and better spatial filtering, ideal for large systems with more complex signal environments.
If your platform is space-limited, a 4-element model can already provide excellent anti-jamming performance without adding much weight or power load.
2. Frequency Band: Match Your Application
Frequency bands define what satellite signals the terminal can handle. Common bands include B1, L1, E1 and G1
- These cover GPS, BDS, GLONASS and Galileo navigation systems.
- For small unmanned systems, supporting these main bands ensures stable global positioning.
When comparing models, always check if the frequency bands align with your navigation modules. The SH-K66 supports the main single-frequency points B1, L1, G1 and E1, which meet most small-platform needs.
3. J/S (Anti-Jamming Performance)
J/S, often expressed in decibels (dB), represents how effectively the terminal can block interference signals.
- A higher J/S (e.g., 80–90 dB) means stronger resistance to both unintentional interference and malicious jamming.
- However, very high suppression levels can increase power consumption or delay, so balance is important.
The Small Caliber Anti-Jamming Terminal (SH-K66) achieves a stable suppression effect while maintaining low delay and consistent positioning output.
4. Size and Power Consumption: The Core of "Small Caliber" Design
For unmanned or mobile platforms, compact design and low power consumption are key.
- Smaller terminals reduce the payload weight and simplify installation.
- Low power usage extends operation time for battery-driven platforms.
The SH-K66 is optimized for size-to-performance ratio, making it perfect for small drones, vehicle-mounted systems, and other portable navigation platforms.
Why Choose SATA's SH-K66 Small Caliber Anti-Jamming Terminal?
Proven Reliability and Advanced Design
The SH-K66 is designed for reliable navigation under complex interference conditions. It protects PNT (Positioning, Navigation, and Timing) information from interference or signal deception. It's also equipped with built-in anti-deception functions and interference power detection, which make calibration and system testing easier.
Flexible and Developer-Friendly
Unlike many fixed systems, the SH-K66 supports secondary development, enabling advanced users to build functions like spectrum monitoring or data analysis. This flexibility is essential for evolving navigation and communication systems.
Compact Yet Powerful
Despite its small size, the SH-K66 offers strong anti-jamming performance with a built-in positioning module that outputs data through standard NMEA-0183 protocols. SATA's SH-K66 achieves a perfect equilibrium of compact form factor, high performance, and value, making it an ideal choice for unmanned systems where space is limited and power efficiency is critical.
About SATA - A Trusted Partner in Satellite Ground application
SATA is a technology-driven company specializing in satellite ground applications and advanced communication solutions. With over 50 employees, 70% of whom are R&D engineers, SATA's innovation strength supports world-class product development and rapid response to client needs.
- The company holds multiple certifications: CMMI Level 5, Equipment Manufacturing Certificate, and ISO9001 Certification.
- Recognized as a "Specialized, Refined, Innovative, and Unique Enterprise" and a "Technological Innovation Demonstration Enterprise" in Shaanxi Province.
- With over 100 technology patents, SATA has a strong foundation in satellite communication, instrumentation, and microwave technology.
Our Product Range
SATA provides complete solutions including:
- Satellite communication products: ground antennas, flyaway antennas, SOTM, SNG, and radome ,etc.
- Instrumentation & equipment: anti-interference terminals, interference sources, demodulators, programmable processing equipment.
- Microwave products: duplexers, amplifiers, filters, and TR components.
- Special materials: gold-coated molybdenum wire, special material metal mesh and tantalum products.
- Customized services: RF test ranges and ground station systems.
Our products are exported to over 20 countries, including the UK, France, Italy, Singapore, and Ethiopia, supported by long-term partnerships with both domestic and international clients.
Conclusion
When choosing a Small Caliber Anti-Jamming Terminal (SH-K66), remember that the right balance between element count, frequency compatibility, suppression level, size, and power efficiency defines how reliable your navigation system will be.
SATA's SH-K66 offers a practical, high-performance solution for those who need robust interference resistance in compact platforms - whether for drones, vehicle navigation, or other unmanned systems.
