DK7ZB 50MHz-4-Element-28-Ohm-Yagi Posted by Geir on December 24, 2013 Posted in: Antennas. Tagged: 50MHz, DK7ZB, Merry Merry Christmas, Ohm Yagi, yagi. Leave a Comment After being grounded for several years my DK7ZB 50MHz-4-Element-28-Ohm-Yagi once again is up in the air. Although it is hard to see it under the Fritzel. Looking forward to try some jt6m again. Merry Merry Christmas all!