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Baluns, Chokes

A sheath wave is a type of electromagnetic wave that spreads in a conductor along the outer sheath of a coaxial line. However, they can also be generated by inducing the actual transmitted signal on the outside of the coaxial sheath. At WiMo, we not only sell a wide range of sheath wave barriers, but we also manufacture them ourselves. Contact us for your individual requirements.


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  1. Current Balun (Choke) 144/432 MHz 1kW
    New
    Current Balun (Choke) 144/432 MHz 1kW

    Especially for 'Element Thru-Boom' antennas, waterproof, N-socket, ring lugs

    In stock, shipped in 1 to 2 days

    €69.00
    incl. VAT, plus shipping €57.98
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    SKU 18484.0501.TB
  3. Balun 1:1, 5 kW MaxiCore Balun for Tuner
    Balun 1:1, 5 kW MaxiCore Balun for Tuner

    MaxiCore 20 Balun 1:1 (current choke) for use with non-resonant antennas and a tuner. Max. 5 kW.

    In stock, shipped in 1 to 2 days

    €165.90
    incl. VAT, plus shipping €139.41
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    SKU 11551.1T
  5. Antennas Amplifiers 1:1 Balun 5 kW
    Antennas Amplifiers 1:1 Balun 5 kW

    1:1 Balun - 5kW - Optional with SO239 or 7/16 DIN connector

    In stock, shipped in 1 to 2 days

    As low as: €259.00
    incl. VAT, plus shipping €217.65
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  7. Kelemen Balun 1000W/2000W
    Kelemen Balun 1000W/2000W

    Kelemen balun for 1000W or 2000W and 1:1, 1:2, 1:4, 1:6 or 1:9 to choose from

    In stock, shipped in 1 to 2 days

    As low as: €67.00
    incl. VAT, plus shipping €56.30
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  8. LDG Baluns
    LDG Baluns

    Series of compact baluns and UnUns with different transmission ratios, weatherproof, up to max. 200 W.

    Please select a product

    As low as: €45.90
    incl. VAT, plus shipping €38.57
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  9. EAntenna Balun, 1:1, 10kW
    EAntenna Balun, 1:1, 10kW

    High-quality high-performance balun in PVC housing, 50 Ω, PL socket

    In stock, shipped in 1 to 2 days

    €175.50
    incl. VAT, plus shipping €147.48
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    SKU 11369.10KWBE

Items 1-10 of 58

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FAQ

What are Sheath Waves?
A sheath wave is a type of electromagnetic wave that propagates through conductors. For example, the sheath wave propagates in a conductor along the outer sheath of a coaxial line.
How to reduce sheath waves?
A sheath wave barrier (also called a sheath wave absorber or sheath current filter) attached to a coaxial line in or near the equipment can attenuate or prevent high-frequency sheath waves. In the simplest case, it is a ferrite core that contains inner and outer conductors in coaxial cables and acts as a current-compensated choke or common-mode choke. A ferrite core also functions as a transformer so that a useful signal can be maintained as a push-pull signal. The cable can also be passed through the core several times to increase inductance against unwanted common mode signal components.
How do cladding wave filters work?
To reduce this interference, the entire cross-section of the cable is passed through a ferrite core (multiple times if necessary). Because of its inductance, this configuration acts like a choke with one or possibly more turns for common mode interference.
What are the different types of cladding wave filters?
There are split, snap-in ring and ribbon cable ferrites that can be applied to electrical cables to subsequently place ferrite cores around the cables for interference suppression. Snap-in ferrites are another name for cladding wave filters..
Wimo Mitarbeiter

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Whether you have questions about our products, the ordering process or our services, whether you are a complete professional or a beginner - it doesn't matter! Our experts are there to help you in word and deed - independent of the frequency range and radio application.

Don't hesitate - contact us.

+49 7276 9668-0 [email protected]