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Radio Propagation
Solar X-rays:  Geomagnetic field:  D-Region Absorption Prediction:  Created by PA4RM |
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The winning article for the April 2019 QST Cover Plaque award is “A High-Power 160- and 80-Meter Transmitting Loop Antenna” by Steve Adler, VK5SFA.
The QST Cover Plaque Award -- given to the author or authors of the most popular article in each issue -- is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Cast a ballot for your favorite article in the May issue today.
Read more http://www.arrl.org/news/view/vk5sfa-wins-the-april-qst-cover-plaque-award