https://community.usa.canon.com/t5/Camcorders/Ferrite-Core-on-Power-Cable/m-p/58267#M960 <P>Canon camcorders come with a "ferrite core" to be attached near to the plug that connects the power supply into the camera. The instructions say to attach 7 cms from the plug going into the camera. &nbsp;I'm wondering if this i really necessary or is it to comply with some US or Canadian standard; if it is why didn't Canon install at the factory or use a cord with a ferrite built into the cable. &nbsp;I'm leaning to not bother. &nbsp;Any thoughts?&nbsp;</P> Wed, 01 Jan 2014 20:06:40 GMT Sailormannn 2014-01-01T20:06:40Z https://community.usa.canon.com/t5/Camcorders/Ferrite-Core-on-Power-Cable/m-p/58267#M960 <P>Canon camcorders come with a "ferrite core" to be attached near to the plug that connects the power supply into the camera. The instructions say to attach 7 cms from the plug going into the camera. &nbsp;I'm wondering if this i really necessary or is it to comply with some US or Canadian standard; if it is why didn't Canon install at the factory or use a cord with a ferrite built into the cable. &nbsp;I'm leaning to not bother. &nbsp;Any thoughts?&nbsp;</P> Wed, 01 Jan 2014 20:06:40 GMT https://community.usa.canon.com/t5/Camcorders/Ferrite-Core-on-Power-Cable/m-p/58267#M960 Sailormannn 2014-01-01T20:06:40Z