March 2015 Club Meeting - "WWV for Amateur Radio"

  • Print

March 20, 2015 

7:00pm MST

Ascension Lutheran Church 1220 West Magee Road, Tucson, AZ

Handyman Corner

Presented by Tom, W8TK

"Make a Cable Winder" 

Doctor DX

Presented by George, NG7A

The DeciBel
 

WWV for Amateur Radio

Presented by Tom Kravec, W8TK

WWV Buildings

WWV and WWVB radio stations are located in Fort Collins, Colorado.  They are operated by the National Institute of Standards and Technology, a division of the U. S. Department of Commerce.  NIST provides time and frequency standards to the world. It’s easy to see that the world depends heavily on time and frequency information, and that we rely on many millions of clocks and oscillators to keep time and produce frequency. To keep the world running smoothly, these devices need to be periodically compared to an internationally recognized standard. This comparison might be as simple as setting our watch or alarm clock to the correct minute, or adjusting the frequency of an atomic oscillator so it keeps time within a few nanoseconds per day. The time and fre- quency standards maintained by NIST provide the reference for these comparisons.  The task of maintaining the national standards for time and frequency is an important part of the work done at NIST, and it fits in perfectly with the agency’s mission. NIST serves as the national measurement laboratory, or the ultimate reference point for measurements made in the United States. NIST is responsible for maintaining the seven base physical quantities at the highest possible accuracies. Time is one of the seven base quantities; the others are used in the measurement of length, light, electricity, chemical concentration, temperature, and mass. NIST distributes the standard units of measurement throughout the country in the form of measurement services and standard reference materials. By doing so, it provides measurement references to anyone who needs them.  In addition, the radio stations provide up-to-the-minute updates on geophysical alerts, marine storm warnings, and GPS status announcements.  W8TK’s presentation will detail all of the information available on WWV broadcasts, illustrated with audio clips taken from his receiver in his Tucson hamshack.

About Tom Kravec, W8TK

Tom is an experienced ham who has a passion for helping new hams become comfortable with their new hobby.  He is a regular speaker at OVARC meetings presenting the Handyman Corner.  Tom is also the OVARC Field Day Chairman and Chief Elmer.