KB9JMJ GREGORY G RADTKE W2625 Oak Street, PO BOX 152 Ashippun, WI 53003 United States Operator Class TECHNICIAN Previous Callsign Grant Date 01/07/2025 Expire Date 03/24/2035 Codes HAI - Ham Radio - Individual Ads from KB9JMJ on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of