I put Incandescent bulbs in the kitchen and still the same result as with the LEDs when I turned on the switch. I pulled out an AM radio and put it on the 530 and 1600 bands as suggested and there is a large buzzing noise when the switch gets turned on. I have 3 dimmer switches just like the one in the kitchen and buzzing happens when any of them are on. I will try moving the VHF antenna later this week and check back.
Dimmers and antennas don't mix well:
https://www.google.com/search?client...UTF-8&oe=UTF-8
Here are the dimmers I have:
http://www.homedepot.com/p/Lutron-Ma...-203489683-_-N