Precise Time and Frequency

Precise Time and Frequency LLC is now part of LGL Group LLC. The Group companies provide highly engineered products for generation, synchronization, and control of timing and frequency with multiple technologies including Quartz, Rubidium,  and GPS/GNS Frequency References to fulfil the most demanding requirements. We hope you find what you are looking for on our web site. If not please contact us so that we can help.

Low Phase Noise Frequency Standards, NTP Servers, and Redundancy Switches for:

  • Communications – Up/Down Converters
  • Broadcasting – Satellite Ground Stations, DVB-T, HDTV
  • Metrology – Calibration References
  • Network Timing – NTP Servers

About Precise Time and Frequency, Inc

ptfInside_smPrecise Time and Frequency, Inc. strives to offer our customers applications solutions tailored to meeting performance requirements at minimum cost. Since being founded in 2002 by David Briggs and Daniel Whelan, the Company has developed a comprehensive portfolio of time and frequency instrumentation complemented by a wide range of ancillary products such as distribution amplifiers and redundancy switches.

Housed in a well equipped, modern, facility the company is staffed by a small but highly dedicated and experienced team of time and frequency professionals, with decades of experience in applications and instrumentation development.

Since the Company’s inception we have provided many instruments to a very broad range of applications worldwide, from providing simple network time servers to synchronize local computers and instruments, to fully redundant and highly sophisticated Satellite Communications and Broadcast systems.

Military applications include synchronization of mobile Satcom terminals and high performance calibration and test equipment providing the ultimate in frequency stability and phase noise performance.

Learn More About Precise Time and Frequency


At ptf we have endeavoured to build a range of complementary products to enable us to supply a complete solution to our customers’ application needs. The ptf product range includes not only precision frequency and timing references, but also a variety of configurable and pre-configured distribution amplifiers, auto switches for redundancy applications, and digital displays for display of local or UTC time derived from either Time Code or NTP references.

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GPS Glitch January 2016

By |February 1st, 2016|

Introduction. On January 26, 2016, a temporary error in the data upload system for the US Air Force Global Positioning Satellite System (GPS) caused incorrect data to be transmitted from the satellites on the commercial [...]

The Next Iteration for High Performance Applications

By |January 6th, 2016|

Precise Time and Frequency Inc introduces the ptf 3207A GlobalTyme 2 advanced GPS/GNSS Receiver. Delivering the same reliable results as its predecessor, it features some new capabilities and extras to make it even more attractive [...]

Our New Website

By |December 28th, 2015|

We are proud to announce our new website at www.PTFinc.com! We have updated the site with a sharp new look and feel, but we hope to add much more to the customer experience than just [...]

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