N1DCH: “Shortened 80 Meter End Fed Half Wave Antenna” at Minuteman Repeater Association Meeting, September 15, 2021

Dave will discuss his Shortened 80-meter End Fed Half Wave Antenna. He will start with an overview of End Fed Antennas then, move onto the End Fed Half Wave. Dave will talk about how to feed an End Fed Antenna, counterpoise, and grounding. He also will discuss the design of his two End Fed Half wave antennas, the differences and performance, as well as design of the transformers and the common mode choke. He will also delve into the need for a counter- poise and common mode choke.

David’s interest in radio began when he was a kid and hung around the shack of his uncle Myron Hornbaker, W0GFU (SK), Fowler, Kansas. He got his First-Class Radiotelephone License in 1975 (now, General Radio- telephone Operator License). He was employed by a local telephone company as an installer of IMTS telephones in automobiles. Later, he went to work for Wichita, Kansas television station KAKE-TV as a master control operator.

David owns and is president of DCH Consulting Services, an Information Technology company. He has worked in the computer industry for over 40 years, most recently with the Microsoft Corporation. David is a graduate of University Massachusetts Lowell. BS, MS, Information Technology.