ON7FU Ferrite Applications

Professionally constructed BALUNs, UNUNs and RF Transformers for amateur radio use

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  • About Us
    • About Us
    • Feedback and Reviews
  • Legal info
    • General Conditions for Safe Use of ON7FU products.
    • Product Regulatory Compliance.
    • General Terms and Conditions.
    • Privacy Statement
    • Disclaimers.
  • Tech. Info
    • Power Specifications: ICAS versus CCS.
    • “Why do I need a kilowatt + rated BALUN; ……. I’m never running more than 200 Watts”.
    • Correct use of ON7FU ANTENNA TUNER BALUNs.
    • Reducing RF Noise in the radio environment
    • Mounting Flanged Enclosure on Boom, Mast or Support Tube
    • BALUN: What it is and what it’s supposed to do.
    • Scenarios
    • To keep in mind.
    • Optimum Common-Mode RF Current and Noise Elimination.
    • Polycarbonate enclosures
    • Links to interesting publications.
  • Contact / Order
    • Contact / Order
  • GALLERY
  • BALUNs
    • Standard 1/1 BALUN
    • Lightweight Medium Power 1/1 BALUN
    • High Power 4/1 BALUN
    • Antenna Tuner BALUN
  • UNUNs
    • High Power 9/1 UNUN
    • High Power 4/1 UNUN
    • High Power 1/2 UNUN
  • Line Isolators
    • High Power Range Optimized Coaxial Line Isolator
    • Wideband Coaxial Line Isolator
    • Balanced Line Isolator.
    • HexBeam “BALUN”
  • RX Antenna Products
    • RX Antenna Matching Transformers
    • RX Antenna Termination Resistors
    • 75 to 50 Ohms Transformer.
  • FERRITE products
    • Toroidal Ferrites for HF
    • Ferrite Sleeves for VHF
  • Miscellaneous
    • Customization
    • Teflon Coaxial Cable.

General Conditions for Safe Use of ON7FU products.

General Conditions for Safe Use of ON7FU Ferrite Application BALUN, LINE ISOLATOR, RF TRANSFORMER and FERRITE products.

ON7FU Ferrite Applications products must be used, uniquely and only in amateur radio antenna set-ups.

ON7FU Ferrite Applications products must be used, uniquely and only in fire-safe and explosion-safe outdoor locations.

ON7FU Ferrite Applications products must be mechanically secured in place, in order to prevent them from falling on persons, animals or properties.

ON7FU Ferrite Applications products must be installed so that the antenna terminals cannot be touched by persons and animals.

ON7FU Ferrite Applications products must be installed by technical skilled persons. (i.e. licensed radio amateurs).

By the fact that radio amateurs must pass a technical exam in order to obtain a radio license, they are considered technical skilled persons.

Users and installers are expected to have read, prior to installation, the product specific technical specifications,  installation notes and recommendations as well as the safety warnings / cautions , supplied in printing with each product.

An electronic copy of the product documentation can be requested by E-mail from ON7FU at all times.

The technical documentation is available in Dutch or English language.

Radio amateurs (communicating worldwide) are expected to understand the English language.

In case of doubt, ON7FU can be contacted for translation, support and guidance.

In all cases, the English language version of the document is the legal reference.

Regarding Product Regulatory Compliance, ON7FU Ferrite Applications products are CE certified. That means that they are intended for sales, use and circulation within the CE recognising EU countries only.

Persons or companies that re-sell ON7FU Ferrite Applications products in other countries than the CE recognising EU countries, do this on their own and full responsibility.

The specifications and information regarding the ON7FU products are subject to changes without prior notice.

All statements, information, recommendations and warnings are deemed to be accurate, but are given without any warranty.

Users must take the full responsibility for the application and use of the product.

Users declare to be fully informed by the seller about the application conditions as well as the conditions for use of the products supplied. Therefore only the buyer (customer) is responsible for the consequences of wrong application of any kind, and accepts the risks associated. As a result, the seller (ON7FU Ferrite Applications) does not accept any claim for damage, directly or indirectly, nor does he accept any claim for consequential damages, should they occur.

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