Inside Frequency Control

Bliley Technologies is proud to be partnered with PARC, the Palo Alto Research Center, a leading hub of innovation in a wide range of cutting-edge 21st-century technologies. PARC has deep expertise in the high-tech fields of big data, optoelectronics, semiconductors, large area electronics, model-based reasoning for AI, and is a pioneer in the field of ubiquitous and context-aware computing.

RF engineers are aware that temperature variations are the most significant factor contributing to frequency drift in crystal oscillators. Other variables affecting frequency output, such as humidity and pressure, can be easily alleviated with a hermetically sealed packaging of the crystal in a vacuum, or in an inert gas such as nitrogen. Controlling temperature for precise frequency output in a crystal oscillator circuit, however, requires a higher level of electronic RF design ingenuity. Enter... The Oven Controlled Crystal Oscillator (OCXO).

Hi there! You must be looking to upgrade your engineering electronics lab with the latest and greatest test equipment on the market today. Well good news...this is the place to be! Cool engineers only please...meaning all of you.

Electronic warfare (EW) is a continuous competition between electronic countermeasures (ECM) and electronic counter-countermeasures (ECCM). Electronic warfare systems deploy millions of sensors worldwide on a wide range of platforms such as IR, Acoustic, Radio, and Optic systems, all in the coordinated effort to harness and control the RF (radio frequency) spectrum, the highly contested electronic battlespace.

To say that HRL Laboratories has made significant contributions to cutting-edge science and technology would be quite an understatement. Known today by its legal corporate title HRL Laboratories LLC, the storied company traces its roots back to the legendary Howard Hughes. Hughes set the standard for HRL's innovative mission, advising his contemporaries to "Do the impossible. Because almost everyone has told me my ideas are merely fantasy."

RF engineers would love to get their hands on an ideal crystal oscillator, one which transmits at the designated frequency for the life of the device without any deviation under all conditions. Unfortunately, that ideal circuit world is a mathematical fantasy. There are many factors that contribute to oscillator stability and frequency drift issues. To prevent these problems as much as possible, having a firm understanding of frequency stability will help give you the tools to keep your applications performing optimally. But there's another problem...

Raytheon's Next Generation Jammer (NGJ) has been under development now since 2013. In 2016 the US Navy awarded the company a 1 billion dollar engineering and manufacturing development contract for the NGJ system slated to replace the ALQ-99 legacy systems used in the EA-18G electronic attack aircraft.