Thursday, April 28, 2011

Central U.S. Earthquake Drill

Great Central U.S. Shakeout

Today, April 28, millions of Americans across the central U.S. will take part in an earthquake drill and a number of Amateur Radio Emergency Service (ARES) groups are listed among the participants.

The Federal Emergency Management Agency (FEMA), part of the U.S. Department of Homeland Security (DHS), report that at 10:15 am central, millions of Americans across the central U.S. will stop what they’re doing, whether at school, in the office, or at home, to take part in the first-ever public earthquake drill in the New Madrid Seismic Zone region.

And that’s not the only "first" – this Great Central U.S. Shakeout is also the first earthquake drill ever to be conducted in multiple U.S. states simultaneously.



FEMA Earthquakes Blog
http://blog.fema.gov/search/label/Earthquakes

Illinois Communication Groups
http://www.shakeout.org/centralus/st...communications

Kentucky Communication Groups
http://www.shakeout.org/centralus/st...communications

Missouri Communication Groups
http://www.shakeout.org/centralus/st...communications

Tennessee Communication Groups
http://www.shakeout.org/centralus/st...=communication

Macon County Amateur Radio Club
http://n0pr.org/2011/04/27/the-great...u-s-shake-out/

Great Central U.S. Shakeout
http://www.shakeout.org/centralus/
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My Stamp Collecting Blog

My Stamp Collecting Blog

Counter Added January 1, 2011

free counters

HOW TO READ PROPAGATION NUMBERS

The A index [ LOW is GOOD ]

  • 1 to 6 is BEST
  • 7 to 9 is OK
  • 11 or more is BAD

Represents the overall geomagnetic condition of the ionosphere ("Ap" if averaged from the Kp-Index) (an average of the eight 3-hour K-Indices) ('A' referring to amplitude) over a given 24 hour period, ranging (linearly) typically from 1-100 but theoretically up to 400.

A lower A-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Ap-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.

SFI index [ HIGH is GOOD ]

  • 70 NOT GOOD
  • 80 GOOD
  • 90 BETTER
  • 100+ BEST

The measure of total radio emissions from the sun at 10.7cm (2800 MHz), on a scale of 60 (no sunspots) to 300, generally corresponding to the sunspot level, but being too low in energy to cause ionization, not related to the ionization level of the Ionosphere.

Higher Solar Flux generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; Solar Flux rarely affects the 30, 40, 60, 80, & 160 Meter Bands.

K index [ LOW is GOOD ]

  • 0 or 1 is BEST
  • 2 is OK
  • 3 or more is BAD
  • 5 is VERY VERY BAD

The overall geomagnetic condition of the ionosphere ("Kp" if averaged over the planet) over the past 3 hours, measured by 13 magnetometers between 46 & 63 degrees of latitude, and ranging quasi-logarithmically from 0-9. Designed to detect solar particle radiation by its magnetic effect. A higher K-index generally means worse HF conditions.

A lower K-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Kp-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.

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