What is this.......
May 21, 2013 12:49:09 #
I bought some equipment and these were in the backpack... everything was photo related; these I could not figure out..
Cylindrical, big one is 1.25" long. they latch closed with a catch. Insert is metal? The way the openings are shaped they are designed to close on a chord of some type (maybe)... Its not for a drawstring, those have a better functioning cheaper design..
Sorry no prize other than a salve for my curiosity...
Cylindrical, big one is 1.25" long. they latch closed with a catch. Insert is metal? The way the openings are shaped they are designed to close on a chord of some type (maybe)... Its not for a drawstring, those have a better functioning cheaper design..
Sorry no prize other than a salve for my curiosity...
May 21, 2013 12:55:46 #
jdubu
Loc: San Jose, CA
I have these on some of my USB cables. As far as I know, they are meant to keep line interference to a minimum when using the cable for data transfer.
May 21, 2013 12:57:59 #
May 21, 2013 12:57:59 #
I've seen similar things (not photo related), to keep cords that are plugged together from becoming apart.
May 21, 2013 12:58:37 #
jdubu wrote:
I have these on some of my USB cables. As far as I know, they are meant to keep line interference to a minimum when using the cable for data transfer.
Yup, I agree that is what they look like
May 21, 2013 12:58:55 #
Those are "core filters" for USB cables. They snap onto the cable and are supposed to cut down on interference. Most USB cables have this built in and I haven't found need to use them yet.
May 21, 2013 13:09:13 #
May 21, 2013 13:10:56 #
OddJobber wrote:
Those are "core filters" for USB cables. They snap onto the cable and are supposed to cut down on interference. Most USB cables have this built in and I haven't found need to use them yet.
Thanks for the info... totally whiffed on that one... Obvious once you mentioned it...
May 21, 2013 13:15:26 #
JR1 wrote:
Actually they are Ferrite beads
Splitting hairs, JR1. "Ferrite beads may also be called blocks, cores, rings, EMI filters, or chokes." :)
May 21, 2013 13:18:27 #
LPigott wrote:
Are they heavy? Could they be tripod weights?
Not a bad idea!!
May 21, 2013 13:34:50 #
Pepper
Loc: Planet Earth Country USA
Looks very similar to the weather guards that one can buy to put around an extension cord when used outside.
May 22, 2013 06:12:19 #
It's a clip on Ferrite Bead. As a radio ham I use these quite a lot on a variety of cables to suppress a host of radio frequency interference from either my radio to another device or from another device to my radio. All types of modern electronic devices such as mobile phones, wireless hubs, plasma TVs and computers give of some form of RF which can interfere with my radio. Conversely my radio transmitter can pump out 100 watts of RF to my antenna, and this could cause interference with my computer perhaps (say when uploading files from my camera) or even cause problems with my neighbours TV. Ferrites are very useful in avoiding these problems.
http://en.wikipedia.org/wiki/Ferrite_bead
http://en.wikipedia.org/wiki/Ferrite_bead
May 22, 2013 07:38:43 #
May 22, 2013 07:58:50 #
Just got a camera which included these. No explanation. This clears it up, thanks. Any special place that they should be placed along the cord/usb cable?
malco555 wrote:
It's a clip on Ferrite Bead. As a radio ham I use ... (show quote)
May 22, 2013 08:31:07 #
If you were going to use them you would clip them onto the cord at the closest spot it connects to your device (camera, computer, etc.). You will probably have no need for them unless you are trying to do something like...download pictures from your camera to your laptop WHILE in the vecinity of a powerful transmitter (like a radio station) or possibly a very large power generator. Sometimes it helps to loop the cord once or twice then clip the ferrite core around the outside of the loop. In the scenerio above I would either use one at each end of the cable or just one on the end by the computer.
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