"You'd be surprised how sensitive modern electronics are to
stray RF fields!!"
Not at all surprised. I recently had to remove the flatbed scanner from the desk where the computer it is connected to sits, which is near the 530. Every time I tripped the transmitter to load the thing or test something, the scanner would do a start-up cycle.
"I used to do just this for Uncle. I can't confirm or
deny anything......."
Yeah. Me too. Never happened.