Thursday, May 6, 2010

Working DX

Looks like today is a good day for DX. Listen for me on 20 and 40 meters.

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National Day of Prayer

On May 6, 1982, Ronald Reagan offered these words: "Today, prayer is still a powerful force in America, and our faith in God is a mighty source of strength. Our Pledge of Allegiance states that we are 'one nation under God,' and our currency bears the motto, 'In God We Trust.' The morality and values such faith implies are deeply embedded in our national character. Our country embraces those principles by design, and we abandon them at our peril. Yet in recent years, well-meaning Americans in the name of freedom have taken freedom away. For the sake of religious tolerance, they've forbidden religious practice in the classrooms. The law of this land has effectively removed prayer from our classrooms. How can we hope to retain our freedom through the generations if we fail to teach our young that our liberty springs from an abiding faith in our Creator?"

History of the National Day of Prayer
1775 The First Continental Congress called for a National Day of Prayer.
1863 Abraham Lincoln called for such a day.
1952 Congress established NDP as an annual event by a joint resolution, signed into law by President Truman.
1988 The law was amended and signed by President Reagan, to be the first Thursday in May.
2010 U.S. District Judge Barbara B. Crabb ruled that the National Day of Prayer is "unconstitutional."
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My Stamp Collecting Blog

My Stamp Collecting Blog

Counter Added January 1, 2011

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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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