Track Dennis, N7MEA-6, via internet APRS.  See where he is located while operating Mobile.

NorthWest APRS One of the fastest growing facets of ham radio.  This page has all the necessary information and links you will need.

Internet Weather Resources 

Grey Line Map The grey line is a band around the Earth that separates daylight from darkness.  Propagation along the grey line is very efficient.  One major reason for this is that the D layer, which absorbs HF signals, disappears rapidly on the sunset side of the grey line, and it has not yet built upon the sunrise side.

The Ham's Net - APRS

Search and Rescue a collection of links

Amateur Radio RF Safety Calculator Amateur Radio operators licensed by the Federal Communications Commission of the United States of America are required to do a "routine evaluation" of the strength of the RF fields around their stations, subject to certain exemptions based on Peak Envelope Power (PEP) levels.

Online Map Creation using AZ_PROJ AZ_PROJ is designed to draw maps for amateur radio operators (hams) to determine bearing and distance from their QTH (home, mountain top) to anywhere on earth.

Solar Terrestrial Activity Report Solar and geomagnetic activity

Propagation Dynamic collection of propagation information