Inside Frequency Control

Rob Rutkowski

Recent Posts

What are GPS Disciplined Oscillators (GPSDO)?

Posted by Rob Rutkowski on Mar 19, 2019 9:26:00 AM

GPS Disciplined Oscillators (GPSDO) are one of today's most trusted and accurate sources of timing.  These powerful devices (sometimes called GPS clocks) consist of a high-quality stable oscillator and a GPS receiver. The GPSDO works by disciplining (or steering) the oscillator output to a GPS device or GNSS satellite signal via a tracking loop.

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Topics: PNT, GPS, Ultra-Stable OCXO, Frequency Stability, GNSS, gpsdo

What is a DoD Modular Open Systems Approach (MOSA)? (5 Core Principles)

Posted by Rob Rutkowski on Mar 12, 2019 9:20:00 AM

A Modular Open Systems Approach (MOSA) is becoming critical in Department of Defense (DoD) systems. If you're unfamiliar with this critical system design approach (or need a little brush-up) you're in the right place (and should totally keep on reading to discover the 5 core principles).

But first, a few quick basics. MOSA is a business and technical strategy for easily developing new defense systems or modernizing existing ones. This will help the Department of Defense provide joint combat capabilities required for 21st century warfare.

MOSA also provides the ability to support and evolve these 21st century capabilities over their total life-cycle.

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Searching for the Perfect Crystal Oscillator? Ask These 4 Key Questions

Posted by Rob Rutkowski on Feb 27, 2019 9:36:00 AM

The harsh truth is, selecting the wrong quartz crystal oscillator can quickly kill any design. With the wide variety of options and specs available in the market today, selecting the perfect crystal oscillator for your design can be a difficult and time consuming task.

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Topics: crystal oscillators

How to Choose the Best Wireless IoT Connectivity Option

Posted by Rob Rutkowski on Feb 19, 2019 10:40:09 AM

According to Statista,  there is a projected 30 billion Internet of Things (IoT) devices to be connected by 2020. That would be over a 400% increase in connected IoT devices from 2014. Most of these IoT devices will need to be connected through at least one type of wireless radio frequency (RF) communication.

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Topics: IoT

4 Hidden Mysteries of Quartz Crystal Oscillators (A Not-So-Boring History)

Posted by Rob Rutkowski on Feb 12, 2019 9:04:00 AM

 

The development of crystal oscillators has literally changed the world. Technically that can (and is) said about many things. But think about it! Without crystal oscillators, we may have never seen precision timing in clocks, wide and clear radio broadcasts, or important communication methods within military and space programs.

Imagine how different our world might be without these now commonplace technologies. 

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Topics: crystal oscillators

5 Best Affordable Consumer Drones on the Market (2019)

Posted by Rob Rutkowski on Feb 5, 2019 9:02:00 AM

Drones have officially begun to constantly fly through the minds of society.  The technology advances in flight technology, flight modes, and controls along with the advancements in portable photography and video technology have caused an explosion with amateur and professional photographers and videographers. 

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Creepy Frequencies: Scary Sounds of the Universe

Posted by Rob Rutkowski on Oct 2, 2018 8:54:00 AM

The fall and Halloween season is among us once again. (Finally!)

So yes, we're about to take on the challenge of linking frequency control to Halloween. Can it be done? Maybe. Will it be done? Yes. (We never let the word 'impossible' stop us in the past). 

In this post you're going to discover the dark, creepy side of frequency control by looking at some scary frequency sounds that can be found within our universe. 

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What You Should Know About Stratum System Levels

Posted by Rob Rutkowski on Sep 18, 2018 9:55:30 AM

What You should know about stratum levels graphic

When it comes to stratum levels and minimum performance requirements for digital network synchronization, there's definitely a lot to know. A standard first released in 1987 entitled "Synchronization Interface Standards for Digital Networks" from the American National Standards Institute (ANSI) lays out all the official information and requirements. 

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Critical Infrastructure in the 21st Century (GNSS & PNT Solutions)

Posted by Rob Rutkowski on Aug 21, 2018 9:45:00 AM

Building resilience into Global Positioning System (GPS) timing and frequency receivers is crucial in the 21st century. Since the presidential directive on U.S Space-Based Position, Navigation, and Timing (PNT) and Critical Infrastructure Protection (PPD-21), federal agencies have been advancing their efforts when it comes to GPS and Global Navigation Satellite System (GNSS) capabilities. 

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Topics: PNT, GPS, GNSS

What's the Difference Between DVB-S2 and DVB-S2X Standards?

Posted by Rob Rutkowski on Jun 26, 2018 8:32:00 AM

In 1994, the world's first digital satellite TV services were launched in Thailand and South Africa. They utilized the newly developed Digital Video Broadcasting Satellite (DVB-S) system.

Over time, DVB-S became the most popular system for delivering digital TV broadcasts. Technology has advanced and spread tremendously since then, which lead to an increased need for advances to the DVB-S system. Thus, the DVB-S2 and DVB-S2X systems were born!

Let's take a look at these two DVB standards and the main differences between them. 

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Topics: satcom, satellite