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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.


Items 41-50 of 59

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  1. EAntenna Balun, 1:6, 1.5 kW
    EAntenna Balun, 1:6, 1.5 kW

    Robust balun, transmission ratio 1:6, 1.5 kW, weatherproof

    In stock, shipped in 1 to 2 days

    €45.00
    incl. VAT, plus shipping €37.82
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    SKU 11369.6_1.5K
  3. EAntenna Balun, 1:4, 3 kW
    EAntenna Balun, 1:4, 3 kW

    Output impedance: 50 Ω, SO-239 connector, weather resistant

    In stock, shipped in 1 to 2 days

    €85.00
    incl. VAT, plus shipping €71.43
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    SKU 11369.4_3KBE
  4. Hari Mini-Balun 120W SSB/CW
    Hari Mini-Balun 120W SSB/CW

    Hari toroid balun; 120W SSB/CW; 1:1, 1:2, 1:4 and 1:6 to choose from

    Please select a product

    As low as: €38.00
    incl. VAT, plus shipping €31.93
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  5. EAntenna Balun, 1:6, 3kW
    EAntenna Balun, 1:6, 3kW

    High quality balun, 3 kW, screw terminals, PL socket

    In stock, shipped in 1 to 2 days

    €85.00
    incl. VAT, plus shipping €71.43
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    SKU 11369.6_3KW
  8. EAntenna Balun, 1:1, 10 kW
    EAntenna Balun, 1:1, 10 kW

    Robust balun, transmission ratio 1:1, 10 kW, weatherproof

    In stock, shipped in 1 to 2 days

    €136.50
    incl. VAT, plus shipping €114.71
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    SKU 11369.1_10KW
  9. EAntenna 3 kW Balun f. Delta7B
    EAntenna 3 kW Balun f. Delta7B

    For transmitting powers up to 3000 watts, replaces the supplied balun

    In stock, shipped in 1 to 2 days

    €85.00
    incl. VAT, plus shipping €71.43
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    SKU 11740.3K

Items 41-50 of 59

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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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We are happy to help!

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]