responding to reported problems; is the problem
5 miles? Where did you get that number?
My buddy works for Comcast, and one day when he was hangin out with his truck,
I asked if he had one of those fancy RF meters. He did! So we tried it out
on my 600watt purple lumy (no dimmer or SL). There was ZERO rf interference until
he was about 12" away from the running ballast. Only a tiny bit. It doubled within 6", but
was still ok. When he actually touched his meter to my ballast, he meter started making
beeps and whistles. That really helped with my piece of mind.
Just my .02
That was the best place I could find to set it up. I just wanted people to see what happens and that digital ballast do give off rf interference.
Also there is more interference when the ballast is sharing the same circuit as the radio.
I also tested the ballast on a totally separate circuit and the ballast about 15 feet away. The radio noise was much less pronounced but it go more intense as I moved the bulb closer to the radio.