On 5/9/2014 10:25 PM, W2HX wrote: > oh, and it comes with a collins R-388 The R-388 is a 51-J4 itself being worth the $200 price alone. (I have a 51-J3 at the shop. I re-calibrated the PTO to restore the mechanical tracking correctly.) The 51-J3 is "pre-mechanical filter". -- Jeff-1.0 wa6fwi http://www.foxsmercantile.com