Corrections for "Why Antennas Radiate," S. Downs, WY6EE, QEX, Jan/Feb 2005: 1. Delete the term "constant-magnitude" from the paragraph above Eq 1. Below Eq 1, the sentence should read that B is perpendicular to both v and E. 2. Delete the second paragraph after Eq 4. 3. After Eq 7, the word respect is misspelled. 4. In the text after Eq 9, note that the beta term is the term that goes to zero, not one minus beta squared. Also note you can go directly from Eq 6 to Eq 10 by assuming v<