Electronic devices that emit radio frequency energy but are not used for communication are known as "unintentional radiators" and are capable of causing considerable RF interference.
According to Newsline,
the FCC is now requiring certification that these devices meet RFI standards
and is reminding retailers as well as manufacturers that it is now enforcing
"Supplier's Declaration of Conformity" procedures and requiring
certification in certain cases. The list of unintentional radiators is long and
includes such items as computer peripherals, switching power supplies and LED