Our Propagation Experts: It’s Probably a Duct … or Sporadic-E … Maybe Both
rief, narrowly-defined band openings have been described in before, but mostly in relation to 160-meter propagation. In the December 2005 issue, Carl Luetzelschwab, K9LA, wrote an article titled “Ducting and Spotlight Propagation on 160 Meters.” He defined spotlight propagation as “a small geographic area that is favored with good propagation at any given time,” adding that “Oler and
