Many DXers are reporting a VERY strong test signal on 1610KHz last night. It broadcast only a 1KHz tone... and was heard coast-to-coast.
At 0800 CST, it's still audible (but just barely) here near Nashville and by Neil Kazaross near Chicago.
Direction finding and fade characteristics suggest a location on the Eastern Seaboard generally between Philadelphia and Raleigh.
If you hear this station as local reception please let me know.