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Publications

Search Publications by John P. Lowe

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Displaying 1 - 25 of 28

Time Information Broadcasting

September 14, 2017
Author(s)
John P. Lowe
The National Institute of Standards and Technology (NIST) operates radio station WWVB which broadcasts the official time of the United States. WWVB is a 60 kHz standard frequency broadcast emanating from Ft. Collins, Colorado since 1965. The broadcast

WWVB Time Signal Broadcast: A New Enhanced Broadcast Format and Multi-Mode Receiver

May 1, 2014
Author(s)
John P. Lowe, Yingsi Liang, Oren Eliezer, Dinesh Rajan
WWVB is a broadcast station, operated by the National Institute of Standards and Technology, that has been broadcasting time information to radio-controlled clocks (RCC) throughout the continental US since 1965. The transmitted information includes the

New Improved System for WWVB Broadcast

November 14, 2011
Author(s)
John P. Lowe, Matthew J. Deutch, Glenn K. Nelson, Douglas D. Sutton, William C. Yates, Peder Hansen, Oren Eliezer, Tom Jung, Stephen Morrison, Yingsi Liang, Dinesh Rajan, Sidharth Balasubramanian, Arun Ramasami, Waleed Khalil
The WWVB broadcast of the time-code signal has not undergone major changes in its communications protocol and modulation scheme since its introduction in 1963. Its amplitude-modulation (AM) and pulse-width based representations of its digital symbols were

Time Through the Air

March 23, 2011
Author(s)
John P. Lowe
A brief history of the NIST WWVB low frequency (LF) radio station. This includes recent attempts at creating a sister station on the eastern side of the United States and future plans for upgrade of the existing station.

WWVB Radio Controlled Clocks: Recommended Practices for Manufacturers and Consumers (2009 edition)

September 8, 2009
Author(s)
Michael A. Lombardi, Andrew N. Novick, John P. Lowe, Matthew J. Deutch, Glenn K. Nelson, Douglas D. Sutton, William C. Yates, D. W. Hanson
Radio controlled clocks represent a true revolution in timekeeping. Clocks that synchronize to NIST radio station WWVB now number in the millions in the United States, and new sales records are being established every year. As a result, many of us are now

Standard Time and Frequency Dissemination via Eqyptian Digital Satellite

November 27, 2007
Author(s)
John P. Lowe, Jason Heidecker, Mohamed A. Swidan, Ahmed Hisham, Safaa Samuel
The Egyptian Satellite Company and the National Institute for Standards (NIS) in Egypt, with technical assistance from the National Institute of Standards and Technology (NIST) in the United States, are collaborating to broadcast frequency and time

Recommended Practices for Manufacturers and Consumers of WWVB Radio Controlled Clocks

January 1, 2005
Author(s)
Michael A. Lombardi, Andrew N. Novick, John P. Lowe, Matthew J. Deutch, Gerald Nelson, Douglas D. Sutton, William C. Yates, D. W. Hanson
This document serves as a recommended practice guide intended to benefit WWVB radio controlled clock (RCC) manufacturers and consumers. It recommends key features to manufacturers that their products should include, and key specifications that their

Systematic Errors in NIST-7

January 1, 1994
Author(s)
Robert E. Drullinger, W D. Lee, John P. Lowe, F L. Walls, D J. Glaze, Jon H. Shirley