CompuServe Messages

When circuit boards are involved, there is really no way you, the end user, can provide shielding where it is missing. The tolerances on the boards are incredibly tight, and the shielding just has to be designed in. You might think you could at least wrap the whole thing in foil, but the components themselves interact. Most cables already have adequate shielding; leaks are a bigger danger than thin shielding, most of the time. Kinks in the cable, especially near the connectors, or poorly designed/poorly shielded connectors, are a common source of cable leaks. It takes time and money for a manufacturer to deal with shielding issues. There are general rules they can follow, but they also need to test carefully to see if they made any mistakes in shielding. So it is often the case that the cheaper units make noise, while the more costly ones make music. Ron