Pet trackers, and lots of other electronics, have little cylinders inside them called ferrite beads. If they didn't, they'd probably be picking up the local traffic report ...
========== This is a USB cable. It’s just a normal
USB cable. The- the information goes down the wire and that’s all it does, right?
Except what’s this- what the heck? Why’s this? What? Why? This thing is called a ferrite bead, and it’s
a type of iron-containing magnet designed to block interference so that you only get
the electric signals you want to come through. You see them on various chargers, and on some
connector cables too. I use this one with my fancy microphone so that I don’t get
any extra noise when I’m recording music and podcasts. But they’re also hiding in plenty of other
places too -- there’s probably one at the base of your car’s radio antenna, and if
you’ve microchipped your pet? Well, Fluffy might have one, too. In some cases, like those comp...