On Sun,4/16/2017 1:22 PM, Detrick Merz wrote: > Actually, it was a K1 that was hearing the KX3. We stopped using the 817 > when we switched to CW at my station. It wasn't a pure tone I was hearing, > more of a "whoosh," and pretty faint. The "whoosh" sound is phase noise, and both RX and TX have it. 73, Jim K9YC