Inside Frequency Control

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

5 Reasons Why Choosing an Ultra-Stable OCXO Might be Smart

Posted by Rob Rutkowski on Aug 9, 2017 7:32:00 AM

Here’s the scary thing…

Even if you sit for hours upon hours trying to set a precise initial frequency of an oscillator, it’s still going to drift and the oscillator will not be able maintain that frequency over the full course of its use. In this post, you’ll learn the MANY sources of frequency instability and why an Ultra-Stable OCXO may be the fix-all solution.

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Topics: OCXO, Ultra-Stable OCXO, Ultra-Stable, Stability, Frequency Stability