Hello all, I have these constant weak carriers on 1810.000, 1820.000, 1830.000, 1840.000, 1850.000 ... on both my R-4C and IC-751A. A crystal-controlled wall-wart running at 10.00000 KHz? ;-) I've heard of others that had these problems. Any ideas what they might be? TIA. 73, Mike Waters W0BTU