Jim - Is this coaxial hardline (1/2 inch), Andrew / CommScope Heliax LDF4-50A (corrugated outer) ?? https://www.theantennafarm.com/catalog/commscope-ldf4-50a-1763.html or the LMR 600 style ?? Clamp or Crimp "N" for LMR-600 usually cost around $25 each. greg, w9gb Sent from iPad Air