Ferrite cores

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jazzboypro

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Hello all,

My shack is beginning to be filled with many cables (USB cables/network cables/power supply cables/battery chargers/computers/laptops/etc.). I think it's time i put ferrite cores on some of those cables (a few of them have one built-in). Do you have any recommendation/suggestions on what i should use ?

Thanks
73
VA2FCS
 

prcguy

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So Cal - Richardson, TX - Tewksbury, MA
What frequency range do you want to attenuate?

Hello all,

My shack is beginning to be filled with many cables (USB cables/network cables/power supply cables/battery chargers/computers/laptops/etc.). I think it's time i put ferrite cores on some of those cables (a few of them have one built-in). Do you have any recommendation/suggestions on what i should use ?

Thanks
73
VA2FCS
 

jazzboypro

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834
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Laval
I mostly want to eliminate as much noise as possible from all the equipment installed and powered on in my shack. I mostly operate the amateur portion of VHF/UHF bands (repeaters/DMR/D-star)
 

prcguy

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A 43 mix ferrite will target the VHF/UHF bands and there is one made by Laird that works great but I don't have the type number on that one. For the typical rectangular snap on units that are about 1.75" long and 1" across, about 2 turns through the center of one is good or three ferrites in series works well. Just one by itself over a wire doesn't do much.

I mostly want to eliminate as much noise as possible from all the equipment installed and powered on in my shack. I mostly operate the amateur portion of VHF/UHF bands (repeaters/DMR/D-star)
 

mass-man

trying to retire...
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I got RF out of a power supply line to a receiver with 3 snap on ferrite beads on the line! The nearby transmitters were in the 175mhz range. I did the loop thru the bead twice.
 
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