FEI-Zypher offers advanced GPS Selective Availability Anti-Spoofing Module (SAASM) products, which are designed to provide secure and reliable GPS-based time and frequency references. These products are crucial for military and other applications where GPS signal integrity and security are paramount. Here are the key details about FEI-Zypher’s GPS SAASM offerings:

Purpose and Functionality

  • Purpose: GPS SAASM products ensure secure, anti-spoofing, and anti-jamming GPS signal reception, providing accurate and reliable positioning, navigation, and timing (PNT) information.
  • Functionality: They incorporate SAASM technology, which allows for encrypted signal processing, ensuring that the GPS data is protected from spoofing and interference. This is essential for maintaining the integrity and security of the GPS signals used in sensitive applications.



  • Military and Defense: Provide secure GPS signals for navigation, targeting, and communication systems in military operations.
  • Aerospace: Ensure reliable and secure GPS information for aviation and aerospace applications.
  • Critical Infrastructure: Support the security of PNT information in critical infrastructure, including power grids and communication networks.
  • Government and Law Enforcement: Used in various government and law enforcement applications where secure GPS data is crucial.


Key Products and Features

Zypher GPS SAASM Modules: FEI-Zypher offers several models of GPS SAASM modules tailored to different application requirements. These modules integrate secure GPS receivers with advanced anti-spoofing and anti-jamming capabilities.


  • Secure GPS Processing: Use encrypted signals to prevent spoofing and jamming, ensuring the integrity of the GPS data.
  • High Accuracy: Provide precise time and frequency references essential for critical military and aerospace applications.
  • Robust Design: Built to withstand harsh environmental conditions, including extreme temperatures, shock, and vibration.
  • Compatibility: Compatible with existing military GPS systems and standards, facilitating easy integration into current infrastructures.
  • Redundancy and Reliability: Designed with redundancy features to ensure continuous operation even in contested environments.


SAASM Technology:

  • Anti-Spoofing: SAASM technology uses encrypted GPS signals that cannot be easily spoofed, protecting against false GPS data injection.
  • Anti-Jamming: Enhanced signal processing techniques help mitigate the effects of jamming, ensuring reliable GPS signal reception in hostile environments.
  • Selective Availability: Ensures that only authorized users with the correct decryption keys can access the precise GPS data, enhancing security.



Enhanced Security: Provides robust protection against GPS spoofing and jamming, ensuring the integrity and reliability of GPS data in critical applications.

High Precision:  Delivers accurate time and frequency references necessary for synchronized operations in defense and aerospace systems.

Reliability in Harsh Environments: Designed to operate under extreme conditions, ensuring consistent performance in demanding military and aerospace environments.

Compatibility and Integration: Compatible with existing military and aerospace GPS systems, facilitating seamless integration and deployment.

Compliance: Meets stringent military standards for GPS security and performance, ensuring compliance with defense requirements.

FEI-Zypher’s GPS SAASM products provide secure and reliable GPS-based time and frequency references for critical applications where signal integrity and security are essential. With advanced anti-spoofing and anti-jamming capabilities, these products are designed to meet the demanding requirements of military, aerospace, and other sensitive applications. Their robust design, high precision, and compatibility with existing systems make them a trusted choice for ensuring secure and accurate GPS data in challenging environments.

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