K4ZZM Kenneth W Medlin 983 SE FIRST COURT CRYSTAL RIVER, FL 34429 United States Operator Class EXTRA Previous Callsign Grant Date 10/01/2018 Expire Date 12/05/2028 Codes HVIE - Vanity code - Primary Station Preference List Ads from K4ZZM on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of