@pvc Interesting information as always. I was referring to the Beyond RIC. As noted, this RIC needs PRO or USB according to the DIY School instructions. Thanks.
DIY School Legacy Hearing Aids (v2.2) PDF File (Choose Hardware-Programming Device for Widex);
Legend: NW = Noahlink...
Thanks for all your help. I could not find and test the new Compas GPS V4.8 However, I understand that programming old hearing aid units still requires Widex PRO-LINK.