
and followed by custom made ON7FU QRO TUNER BALUN.
Picture: Courtesy of LX1EL.
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Correct installation of LINE ISOLATOR.
Picture: Courtesy of ON4ATW
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Implementation of LOW HF bands optimized Common-Mode Choke at feed point of 160m tower shunt-fed vertical.
Picture : Courtesy of ON4ATW
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ON7FU HexBeam BALUN as installed at ON5PDV
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Antenna Tuner BALUN
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Yagi version BALUN installed on boom.
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Lightweight Medium Power wire version BALUN.
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HexBeam “BALUN”.
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Low Band RX antenne matching transformer.
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Example of 7/16 DIN connector option on Line Isolator or BALUN.
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Inside view of CMC UNUN Line Isolator prior to final potting.
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Setup with HP VNWA and JIG for testing BALUN and ferrite material parameters .
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Genuine Ferrite Toroidal core products.
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High Power CMC using FT240 Toroids on 10mm Coaxial Cable.
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Inside view of 9/1 UNUN.
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4/1 UNUN Installed at bottom of vertical.
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Potted Low Band RX antenna termination resistor.
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Application example: Line Isolators at the bottom of the tower at OT2A.
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Medium power 1/1 BALUN for beam antennas.
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This won’t happen with an ON7FU BALUN.
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Common-Mode Sheath current flowing on the outside of a coaxial cable.
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Radiation pattern of a dipole when a good BALUN is used.
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Radiation pattern of a dipole when NO BALUN is used.
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Low Band RX antenna 75 to 50 Ohms transformer.
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Wideband Dual Core Stagger Tuned Coaxial Line Isolator.
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Customization: Wideband, High Power TUNER BALUN.
Cascaded Stagger Tuned: 2x FT240-31 + 2x FT240-43
Teflon insulated wire additionally inserted in Teflon sleeves.
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Ferrites as RFI suppressors on solar panel inverter.
QRM 1,5 – 30 MHz : S6 -> S0 by installing ferrites on AC and DC cables.
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Common-Mode Current .
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This logo stands for No-Nonsens Professional Quality.
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Unlike many other products, ON7FU products are truly CE Approved .
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