Pat, Try Fischer Custom Communications Inc - I think he makes his own absorbing clamp tel 310-891-0635 fax 310-891-0644 Ask for Alan or Fred Fischer
Maybe Solar Electronics as well in North Hollywood CA - 800-952-5302, ask for Roy Talley Best regards Tom Cokenias EMC & Radio Type Approvals tel 650-726-1263 fax 650-726-1252
