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RF Guru

Common Mode Noise Reduction Kit: For Amateur Radio Operators

Common Mode Noise Reduction Kit: For Amateur Radio Operators

€69,99 EUR
€69,99 EUR
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Fair-Rite · Part 0199000063

One kit for the common noise paths around your station.

A practical assortment of genuine Fair-Rite Snap-It® and toroidal cores for locating and suppressing common-mode RF on feedlines, power leads, audio, USB, control cables and other station wiring.

1 MHz–500 MHz 31 Material® 8 components Reusable case

One case. Multiple noise paths.

Test the real installation—not just the theory.

Common-mode current can ride the outside of coax, couple into control wiring, or leave through power and data leads. Five core formats make it easier to compare fit and placement before choosing a permanent layout.

01

Feedlines

Test choke placement and reduce unwanted current on the outside of coax.

02

Station wiring

Clamp around power, audio, USB and control cables that may carry RF into equipment.

03

Field diagnostics

Compare sizes and locations without committing to a single core format.

Suggested suppression range1–500 MHz

Inside the fitted case

Eight components in five useful formats.

×1
31 round cable core61 × 35.55 × 12.7 mm
2631803802 ×2
31 oval Snap-It® assembly19.2 mm minimum opening
0431184751 ×2
31 round Snap-It® assembly6.3 mm maximum cable diameter
0431164281 ×2
31 round Snap-It® assembly12.7 mm maximum cable diameter
0431164181 ×1
31 round Snap-It® assembly18 mm maximum cable diameter
0431176451

Technical overview

Specifications

Manufacturer
Fair-Rite Products Corp.
Kit part number
0199000063
Material
31 Material® MnZn ferrite
Suggested range
1 MHz to 500 MHz
Contents
8 pieces across 5 part numbers
Core formats
Toroidal, oval Snap-It®, round Snap-It®
Primary use
Common-mode conducted EMI suppression
Is this a finished filter?

No. It is an assortment for testing ferrite size, placement and cable fit. Results depend on frequency, cable geometry, turns and the current path in your installation.

Why 31 Material®?

Fair-Rite specifies 31 Material® for EMI suppression from as low as 1 MHz up to 500 MHz, making it a versatile choice for common-mode troubleshooting.

Can the Snap-It® cores be repositioned?

Yes. The hinged assemblies can be fitted without cutting or disconnecting the cable, provided the chosen size closes correctly.

Is the organizer case included?

Yes. The complete assortment is supplied in the reusable fitted case shown in the product gallery.

Specifications are based on Fair-Rite manufacturer data.

Manufacturer reference ↗
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