Wednesday, October 30, 2013

Royal Air Force Permanent Special Event Stations

The United Kingdom’s Royal Air Force station G3ELV and the Royal Air Force Signals Museum station GB4SMH, will be operational under a permanent Special Event permit effective November 1st. Normal operating times for both locations will be 10:00 to 16:00 local time on each Tuesday and on the first Saturday of each month. 
 If you make contact, please QSL only via the bureau.
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Radar Contest on November 2nd

Turning to radiosports, the 2013 RaDAR-America Contest is coming November 2nd starting at 14:00 UTC and ending at 18:00 UTC.

RaDAR stands for Rapidly Deployable Amateur Radio and the event is aimed at promoting this type of operation throughout North and South America.

This competition is open to all licensed radio amateurs. A choice is made prior to the contest to participate in one of the defined categories.

The points system is so structured as to encourage portable operation, especially moveable stations. In fact, the rules are very close to those created by the founder of the contest Eddie Leighton, ZS6BNE and the ZS RaDAR competition will take place at the same time in South Africa as it will here in the Americas.

Marcus Kessler, NX5MK, is the RaDAR-America Contest manager. The complete rules can be found at tinyurl.com/radar-america-contest. You can see a promotional video on the Amateur Radio Today page at www.sarl.org.za.
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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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