OK, then let me think...I have the stuff plugged into one of those electrical extension cords that has the manifold of outlets (it's six, I think) I notice that the little switch, that allows you to turn the whole thing off and on, (which glows red when the thing is on) blinks as if it has a loose bulb in it or something.

As for RF, I think those on-at-dusk...off-at-dawn devices, you put under your bulbs in the outdoor light, throw off some interference as do the motion-detector security lights (at least they interfere with my AM radio reception, I think) I do have a few of them in my circuitry. Whatdya think?