The winner of the March QST Cover Plaque Award is Carl Luetzelschwab, K9LA for his article “The Sun and the Ionosphere.” Congratulations Carl! The QST Cover Plaque Award -- given to the author or authors of the best 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 April issue today.