Antenna 20m
and 40m band
2.4Ghz Helix antenna
SDR Diplexer
| OCF Fed Dipole | Click ↓ |
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| 80m Off Center Fed Dipole An Off Center Fed Dipole is an easy way to use one antenna for multiple bands |
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| 4 Band Off Centre Fed Dipole 4 Band Off Centre Fed Dipole 40-20-15-10m |
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| 4 Center Loaded Off Center Fed Dipole 6 band CL-OCFD with 80, 40, 30, 20, 15 & 10 m multiband Center-Loaded Off-Center-Fed Dipole |
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| 5 Fundamentals of Off Center Fed Dipoles Off center fed dipoles OCFs are 1/2 wavelength wire antennas fed at neither the center nor the end |
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| An off center fed ocf dipole It's a dipole fed off center with a 4:1 balun at the offset feed point |
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| Off Center Fed OCF dipole antenna Permette di lavorare su più bande almeno per la fondamentale e le prime 2 armoniche con una efficienza accettabile |
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| Off center feed dipole FD-4 for 160m I took a pvc-tube with 50mm diameter and bring up 125 windings of 0,75mm² hvk standard isolated cable |
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| Ocf Dipole Balun Here is an enhanced balun for OCF dipole, the two toroids make the 1:4 impedance transformation |
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| The 6 Meter OCF Dipole Vertical An antenna for 6 meter OCF Dipole Vertical |
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| Windom dipoles Known as OCF for off-center-dipole, or off center feed or simply Windom, it is an antenna with many variations |
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| Windom off center fed Later generation of the Windom are more correctly called off-center-fed dipoles or in abbreviated form, OCF dipole antennas |
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Modif. May 19 2026
 The 160 meter dipole is constructed from #12 stranded insulated wire the feedpoint uses a section of pvc pipe, the ladder line loops through the pvc pipe to provide strain relief |
The capacitor will help raise the radiation resistance at the feed point, for permanent use, we would adjust the value of the capacitor as well as L2 until we optimized the match |
 Double Half Delta pressappoco come una Beverage. L' antenna è costituita da due triangoli di filo sospesi a un metro e mezzo da terra |
 VLF Loop for Radio Direction Finding with two crossed loops, one North/South, one East/West, radio-direction finding on VLF is possible |