RF

Is My Microwave Oven Leaking Radiation?

Microwave

Episode 1846

Sue from Redondo Beach, CA

Sue has a strange problem that her TV screen image flips every time she uses the microwave. Leo says that microwaves are usually shielded, so there's nothing to really worry about. But the cord may not be shielded. So the interference from the power is messing with the HDMI cable. It could also cause the computer to act funny if they're on the same circuit. She can get something called a CHOKE, it's a big bump on a power cable. She'll see them on laptop cables. They're magnetic cores that snap onto a cable that blocks RF signals from coming out of the power cable.

What wireless headphones should I get for watching TV?

Sennheiser RS 120 II

Episode 1532

Seth from Long Beach, CA

Both of Seth's parents are now hard of hearing and they need headphones to watch TV. Is there a system that can do it for them? Leo says that hearing aids now can pair to the TV. So if they need a hearing aid, that's a good feature to get. But if he wants headphones, Leo got his mother a pair of Sennheiser wireless RF headphones. They work much better than Bluetooth.

How can I shield my house from LED light noise?

Episode 1245

David from Spring Hill, FL

David wanted to upgrade the lighting in his home and he's now dealing with a lot of noise on his stereo and HAM Radio. Leo says it's interference from the LED bulbs. Leo says that the lights have to be properly wired and he should get better LED bulbs. There are good and bad LEDs. Cheaper LEDs aren't RF protected. And some are just better than others.