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Item:(2) BIG Snap-On Ferrite Cores, ½" Cable - Stop RFI-EMI

(2) BIG Snap-On Ferrite Cores, ½" Cable - Stop RFI-EMI

Item condition:New
Ended:Nov 20, 200901:00:52 PST
Quantity:
More than 10 lots available (2 items per lot)
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Price:US $7.50
Shipping:$4.20US Postal Service First Class MailSee more services 

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(available quantity 12)
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Estimated delivery*
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US Postal Service First Class Mail
4-7 business days
$4.20
*The estimated delivery time is based on the seller's handling time, the shipping service selected, and the payment method selected. Sellers are not responsible for shipping service transit times. Transit times may vary, particularly during peak periods.

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Other item info
Item number:370278137625
Item location:South Central, United States
Ships to:United States
Payments:
History:3 sold
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Item specifics
Condition: New  
Large ½" ID Snap-On Ferrite Cores Suppress RFI / EMI

0712

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(2) Large Snap-On Ferrite Beads / Cores
Very Effective and Easy-to-Use EMI / RFI Suppressors
Fits cables up to 1/2" diameter.
Auction is for one or more lots of (2) pieces.

This is the most massive and largest ID size we have. Cores can be removed from the plastic shell and taped together to save space. Check our other listings for 1/4", 5/16" and 3/8" ID cores.

I've used ferrite cores to eliminate EMI / RFI problems in the HF, VHF and UHF spectrum. Examples: Severe noise on shortwave radios from unfiltered equipment, transmitters triggering electronic light switches and false tripping of home alarm system. These things really work! I even used one of my smaller cores to eliminate the TV interference from my corded electric shaver with a brush type DC motor.

INSTALLATION:
Installation is quick and easy. Just snap-lock over any coax, audio, AC or DC power cable up to 1/2" dia. Handy for larger sizes of coax that the smaller cores don't fit. But smaller cables can be looped with multiple turns for exponential gains in EMI / RFI attenuation.



Preventive Maintenance

A must for field operations when exposed to unfamiliar indoor or outdoor locations. Reduce the risk of a nearby mobile CB, HAM or other transmitter interfering with your PA, Music sound system or Video equipment.

Here's some common and a few
not so common applications:


  • HAM Antenna Coax - Decouple that feed line to stop it from acting as a radial.
  • Mobile Transceivers - on DC power lines to reduce ignition interference.
  • Suppress RFI emissions from electronically controlled variable speed DC motors.
  • Put the brakes on that noisy Fuel Pump interference.
  • Filter radio signals out of your telephone lines.
  • Reduce RF Interference to your Stereo, TV, VCR and DVD player.
  • Eliminate false alarms to your burglar alarm caused by RF.
  • Block RFI emissions from electronic equipment such as Digital Scales.
  • Stop those SPOOKY 'touch lamps' from switching on/off unexpectedly.

These cores work at EITHER END of the noise path.

  • At the SOURCE, attenuates EMI / RFI from transmitters or electrical noise from equipment (computers, motors, fluorescent lights) before it gets into the house wiring through the power cord. Once the noise makes it to the house wiring, it can travel through the wiring directly to you radio, TV, computer etc. But that's not all! The wiring will also act as an antenna and 'broadcast' interference to nearby battery operated equipment too.

  • At the RECEIVER, attenuates electrical noise generated by all kinds of AC powered equipment traveling through the house wiring before it gets to your radio, TV, computer, etc. And remember, the wiring can act as an antenna and pickup radiated RF Interference from nearby sources such as mobile radios. Close placement to the radio, TV, etc., may be best in that situation.

  • BI-DIRECTIONAL protection: Ferrite cores can provide bi-directional protection too. Some equipment is both susceptible to RFI while at the same time, produces it's own RFI. 'Touch lamps' are a good example. They are strong RFI generators when ON and are susceptible to being turned on or off by strong RF fields. Ferrite cores installed close to the lamp base will solve both problems.

  • Attenuate EMI / RFI or electrical noise picked up by long speaker wires and microphone/audio cables. Multiple cores spaced along long lines, can alter the resonant frequency (detune) of the cables as well as more evenly distribute the attenuation for better performance.

    Generally, placement should be as close to the equipment as possible for maximum attenuation, but as experienced RF technicians know, sometimes, a better location can be determined experimentally.

    • Other core sizes available for 1/4", 5/16" and 3/8" cables.

    FC.50-2

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    Shipping and handling
    Item location: South Central, United States
    Shipping to: United States
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    Shipping and handling
    Each additional item
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    Service
    Estimated delivery*
    US $4.20
    US $1.00
    United States
    US Postal Service First Class Mail®
    4-7 business days
    after seller receives cleared payment
    *The estimated delivery time is based on the seller's handling time, the shipping service selected, and when the seller receives cleared payment. Sellers are not responsible for shipping service transit times. Transit times may vary, particularly during peak periods.
    Domestic handling time
    Will usually ship within 2 business days of receiving cleared payment.
    Return policy
    Item must be returned within
    Refund will be given as
    Return policy details
    7 days after the buyer receives it
    Money Back
    The buyer is responsible for return shipping costs.

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    Seller's payment instructions
    Please email us your payment method and shipping address in 3 days. Pay in 10 days. Shipping / Handling for multiple lots of this item is $1.55 for each additional lot. If you are buying other items, we request you delay payment until you have completed shopping and then email us for a combined invoice. Items usually ship next business day after payment (checks clear). Thank you for shopping buy.
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