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TF3SG
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Archive for August 25th, 2008
Quarter wave vertical antenna close to the ocean
Recent testing of my new vertical quarter wave antenna on 80m. The QTH Hlidsnes Álftanesi is a perfect place to place an antenna. The antenna is 20m in hight and with 4 to 5 elevated radials about 1m above the ground. The feedpoint impedance varies with the number of radials. The radiation resistance was close to [...]
Já smá myndatest
The immage of http://sec.noaa.gov/pmap/gif/pmapN.gif
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K - Index over Leirvogur in Iceland
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This Jan. 29 panorama of much of the East Coast, photographed by one of the Expedition 30 crew members aboard the International Space Station, provides a look generally northeastward: Philadelphia-New York City-Boston corridor (bottom-center); western Lake Ontario shoreline with Toronto (left edge); Montreal (near center). An optical illusion in the photo makes the atmospheric limb and light activity from Aurora Borealis appear "intertwined." Image Credit: NASA
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