What does AJ stand for?

Officials say the IIR-M satellites are designed to improve accuracy, encryption and anti-jamming capabilities for the military along among other civilian applications.

In addition, the SF-3050 and Sapphire provide high performance in GNSS receiver sensitivity and signal tracking, as well as multi-path mitigation, interference rejection and anti-jamming capabilities, while supporting a range of high-speed I/O, including Ethernet, Bluetooth and USB capability.

Telecom companies say weakening anti-jamming legislation could lead to wider restrictions, and some consumer groups worry that prisons that jam signals could affect users outside.

The Chatsworth-based company, which makes anti-jamming systems for the satellite-guided bombs, is in negotiations with defense electronics units of Boeing Co.

The receiver initially features L1 frequency capability, utilizing military only secure GPS signals with anti-jamming and anti-spoofing capabilities.

The Block IIR-M series includes features that enhance operations and navigation signal performance for military and civilian GPS users around the globe - specifically a modernized antenna panel that provides increased signal power to receivers on the ground, two new military signals for improved accuracy, enhanced encryption and anti-jamming capabilities, and a second civil signal, providing users with an open access signal on a different frequency.

He said the United States should focus on countering the threat of micro-satellites that China is developing, and also on deploying anti-jamming capabilities.

Telit's M2M module with anti-jamming features adds unmatched cellular back-up capabilities to iControl's platform, offering home protection companies and service providers a complete next generation home security solution.