Wednesday, February 19, 2014

DX News

In DX, UA4WHX is now active stroke CE0Z from Robinson Crusoe Island. As always, the length of his stay is unknown but he has been heard in the past on 80 through 10 meters using CW, SSB and RTTY. QSL via the information found on QRZ.com.

OE4AAC is reportedly on the air stroke 3B9 from RodriguesIsland and will be there through February 18th. Activity is holiday style on 40 through 10 meters using CW only. QSL via OE4AAC.

F5MVB and F5AOW are planning to be active as 5V7MP and 5V7BJ, respectively, from Avepozo, Togo from March 23rd to the 31st. Operations will be on CW and SSB. QSL via their home callsigns, either direct or by the Bureau.

G3XAQ be on the air from Kampala, Uganda, as 5X1XA between February 25th and March 16th. Activity will be CW only. QSL 5X1XA via G3SWH.

GM4YXI and GM3WOJ will be operational as A35X and A35V respectively, from TongatapuIsland between April 4th to the 18th. Activity will be on 160 through 10 meters using CW and SSB and some RTTY. QSL both A35V and A35X via N3SL

Lastly, M5RIC will be active stroke 5B from Cyprus between July 22nd and the 29th. His operation will include the RSGBIslands on the Air Contest slated for July 26th and the 27th using the callsign C4I. Outside of the contest, look for him on SSB and RTTY. QSL via M0OXO.
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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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