January 22, 2019 at 12:30 pm #36493January 22, 2019 at 9:17 pm #36498
Boy, you’ve got me stumped! 🙂 It’s not off of the USB cord that usually comes with your camera, is it?
Something like this….January 23, 2019 at 11:07 am #36509
I have one exactly like that that came with my camera. I think @buddingphotographer is right. At least my dad said it was that.January 23, 2019 at 11:40 am #36513January 23, 2019 at 5:10 pm #36528
Here’s what Wikipedia has to say about it:
A ferrite bead or ferrite choke is a passive electric component that suppresses high frequency noise in electronic circuits. It is a specific type of electronic choke. Ferrite beads employ high frequency current dissipation in a ferrite ceramic to build high frequency noise suppression devices. Ferrite beads may also be called blocks, cores, rings, EMI filters, or chokes.
See this answer at SuperUser for a slightly more readable answer. 🙂January 23, 2019 at 8:37 pm #36529January 26, 2019 at 11:15 pm #36611
YES! @buddingphotographer is right, that IS a ferrite choke. I actually just got my amateur radio license, and we learned about those in class.
As that looks a lot like an audio cable (maybe a flash cable?)…
I believe—skimming through my textbook here—you’d want to use that if for some reason your signal in the cable was getting interfered with from radio waves. I think you’d probably also want to use it if your cable was emitting something that was getting into a licensed radio operator’s system. I think it’s probably to help ensure the FCC part 15 laws are kept—you know, the fine print in the back of your camera manual “this device must not cause interference, and must accept any interference received”.
I think that’s what it’s for. Maybe the manufacturer had to put it in your kit for some government regulation the consumer never gets to hear about (like the one that used to limit your videos to 29 min 59 sec or 4 GBs).
Just my two cents, and my completely uncertain thoughts on why you might have one in there.January 28, 2019 at 12:38 pm #36616
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