On Wed, 17 Dec 2008 16:21:43 -0800 (PST), Andr+ª Santos wrote: >why I can use my handheld Marantz recorder with >every single radio in my shack that has a line level audio output but I >can't use it with my K3 Pull up the schematics on the internet and study how the jacks are wired. 73, Jim K9YC