Hy-Gain 18HTMakeHy-GainModel18HTYear~1974DescriptionSelf SupportingFreq Range80-10 MetersOther Document(s)Hygain TH6DXX TH3Mk3 18AVTWB 18HT_73Mag1974Jul.pdfHygain TH6DXX TH3Mk3 18AVTWB 18HT_73Mag1974Jul.pdf