For Sale: SG-237 Smartuner (1.8 to 60 MHz HF and lower VHF anntenna coupler) Please see the detailed description at: http://www.sgcworld.com/237ProductPage.html I am the original owner. The unit is fully functional. I am including the original booklet and printed manuals (see pictures) and one SO-239 female to female barrel adapter (not pictured) The Price is U$225.00 including shipping to continental USA only. Payment preferable via PayPal. Thanks for looking. 73 de K1PLL !!