All,

I am pleased to announce that NASA has just released a new 4D ionosphere tool that can benefit the ham radio community. To explore the ionosphere and for more information on this outstanding modeling system, please go to the following web sites:

The vodcast on the 4D ionosphere www.nasa.gov. http://www.nasa.gov/topics/solarsystem/features/4dions_feature.html

A downloadable version that includes a sound bite on how ham radio operators will benefit from this model: http://svs.gsfc.nasa.gov/vis/a010000/a010200/a010208/

Enjoy!

73, Frank Bauer, KA3HDO