Hello Elecrafters. New to the K4/0.... My PC is connected to the K4/0 USB PC connector on the rear side,,, but it not goes in TX mode f.ex when TUNE is activated,, (the RX work fine).... ,,same parameters than K4D ,, Digimodes work fine when directly connected to the K4D like FT8/wisper.... Any hints ?? 73' Viggo LA9NEA