I have a FT-990 that I enjoy operating. At Dayton this year I purchased an INRAD 400Hz filter for the 455kHz IF. I am curious if the 990 cascades the two IF's filters or use just one at a time? Also I would be interested to hear from others regarding the preferences of 250Hz vs. 400Hz for CW operation in this rig. Des, N4IN [email protected] [email protected]