Saturday, March 12, 2011

Japan Earthquake (Amateur Radio) JARL Info

It has been 24 hours since the worst earthquake for 140 years hit off north-eastern Sendai registering 9.1 (REVISED) on the Richter scale and triggering a tsunami.

The Japan Amateur Radio League (JARL) Secretary Ken Yamamoto JA1CJP reports that the disaster appears to have resulted in more than 1,300 people killed or missing.

JARL Regional HQ station JA7RL is now involved in emergency communication to support rescue and disaster relief coordination.

Ken JA1CJP said they are using 7 MHz SSB, 144 MHz SSB/FM and 430 MHz SSB/FM.

The freqency 7043 controlled by JR3QHQ the Osaka branch manager of JARL.

He is gathering incident information on radio and forwarding this information on the internet.

The channel 7075 is operated by JL3YSP in Wakayama occasionally. While 7030 kHz is the JARL emergency communication frequency in their band plan is in use by JA7RL (JARL regional HQ station).

Japan has 1.3 million hams and is not in need of emergency communication help externally, although this has been kindly offered.

Ken JA1CJP said basically the efforts being made are purely voluntary. No organised emergency communication has been arranged.

Television coverage includes the heartbreaking stories of the quake hitting and the tsunami that swept away coastal towns and felt throughout the Pacific.

Occurring late afternoon on Friday, disrupting plans for travel, it was the worst in Japan for 140 years.

Caught up in the drama was IARU Regional 3 Chairman Michael Owen VK3KI who had earlier attended an IARU conference. He’s safe and well, and hopeful of being on a flight home.

Jim Linton, VK3PC
Chairman IARU Region 3 Disaster Communications Committee.
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Japan Earthquake Updates & Info

With images of yesterday’s earthquake and events in Japan I want to continue to share info I get to help those looking for valuable information. However, at this time with every major media outlet and the fact that the people of Japan have done such a great job at provided the rest of the world information, I will only be sharing links from this point forward unless new events warrant addressing.
I want to thank those of you who took the time to contact me with your comments and concerns.

Media Sites
NHK...
KYODO WIRE...
BBC LIVE...
REUTERS LIVE
Fox News

USGS Magnitude 5 and greater earthquakes

Articles of interest.
Quake's Magnitude Hiked to 9.1...
Radiation leaking, pressure in core unstable...
Caesium detected; points to nuke fuel melt...
'MAY BE EXPERIENCING NUCLEAR MELTDOWN'...
Japan nuke officials: 'High probability'...
'No immediate health hazard,' officials say -- while evacuating 45,000...
REPORT: Evacuation widened to 20 km...
Japan declares emergencies at 5 nuclear units...
Evacuations at Fukushima II...
Building Housing Fukushima I Reactor Blows Up...
VIDEO...
Top official: There was no explosion...
 Quake moved Japan coast 8 feet; shifted Earth's axis...
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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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[In accordance with Title 17 U.S.C. Section 107, this material is distributed without profit, for research and/or educational purposes. This constitutes 'FAIR USE' of any such copyrighted material.]
I am not responsible for any thing that happens to your mental health, computer and all personal property because you visited my site.
This site is a collection of some things sent to me by e-mail, obtained from other blogs and the internet. If there is a picture or quote that is copyrighted to you let me know and I will remove your item .
Thoughts expressed in my blog are just that . I give My Opinion on the many events, products and how too, reported by the media and other web-sites.
Do not use this blog site to obtain weather events or disasters information. What I post may not be correct. Always get information from the proper media, weather (NWS)(NOAA)
Pacific Tsunami Warning Center and USGS sites