The whine you hear on 160M may be the "filter cap" on the display board on the front panel. Mine did that a few years back. Replaced the cap-- 100ufd if I remember--and that cured the noise which only seemed to bug the low end of 160--and all was well. No advice on the other problem. 73 Ralph Matheny K8RYU 207 Gibbons Place Marietta Ohio 45750