Use of ferrite beads / core on screened cables

Henry8 · 24th May 2011, 12:37 PM

Hi,

I have some ferrites, 10mm i/d, 14mm o/d, 20mm long.
A screened cable can easily pass thru it, or i can loop it one time.
Some tests i did showed it did not help with hum pickup (cable near a txmfr)
Is there any benefit to using one?

sesebe · 24th May 2011, 12:51 PM

Hi,
It will help only at very high frequency (10's-100MHz)

DF96 · 24th May 2011, 01:37 PM

It might stop interference from your mobile phone, the broadcast transmitter a few miles away, the CFL a few feet away, and the radio amateur or taxi firm just over the road.

24th May 2011, 12:37 PM	#1
Henry8 diyAudio Member Join Date: Jul 2010	Use of ferrite beads / core on screened cables Hi, I have some ferrites, 10mm i/d, 14mm o/d, 20mm long. A screened cable can easily pass thru it, or i can loop it one time. Some tests i did showed it did not help with hum pickup (cable near a txmfr) Is there any benefit to using one?

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
ferrite beads v. grid resistor	Buckeye Sound	Tubes / Valves	8	21st October 2006 04:21 PM
Ferrite beads ON chips	Dr.H	Digital Source	11	17th March 2005 01:24 PM
ferrite beads	till	Digital Source	59	17th September 2004 12:28 PM
non intrusive ferrite beads	jives11	Digital Source	2	29th April 2004 10:37 AM
Ferrite Beads	Narcisse91	Parts	13	3rd January 2003 12:26 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

24th May 2011, 12:51 PM	#2
sesebe diyAudio Member Join Date: Jan 2011 Location: Iasi	Hi, It will help only at very high frequency (10's-100MHz)

24th May 2011, 01:37 PM	#3
DF96 diyAudio Member Join Date: May 2007	It might stop interference from your mobile phone, the broadcast transmitter a few miles away, the CFL a few feet away, and the radio amateur or taxi firm just over the road.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)