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2 Elements 20m Delta Loop


For this project I started from a Nerio Neri Book antenne.The book describes the building of a HF three bands 10-15-20 aluminium delta loop, but I limited the design to 20m band only
post 28 Jan 2024
post 28 Jan 2024
2 Elements 20m Delta Loop

Antenna Delta Loop Links

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Multiband delta loop
A multiband antenna, giving comparable results to a mono-band loop or dipole. At the open end of the loop a 1/4 wave shorted stub for 28Mhz was added. The stub and the feed line is made of 450 ohm ladder line. The stub opens the loop on 28Mhz, on all other frequencies the antenna is working as a closed loop

Multiband Delta Loop
For 160m relays 1 and 4 are energized, the antenna works as a folded DipolFres = 1.85 MHz For 80m all relays are de energized, Antenna operates as delta loop with Fresres 3.7 Mhz with parallel connected dipole Fres 3.6 MHz For 40m Relay 2 is energized, L1 produces resonance at 7.1 MHz. For 30m relay 2 + 3 is energized, L1 and L2 cause resonance to 10.125 MHz

Red Neck Loop Antenna
All Band operation or at least 40 to 10 meters,I'm a huge fan of the loop antenna. Quad loop, Delta Loop, Sky Loop, it doesn't matter, I know they perform very well


Take off angle of horizontal antenna

Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane

A remote antenna switch

A remote antenna switch An abiding dislike for bundles of cables running on the exterior of my house, so a remote antenna switch seemed like a good idea

5 element yagi antenna for 28.5 Mhz

5 element yagi antenna for 28.5 Mhz Gamma match will be made with a 1/2 "aluminum tube and a 75 cm coaxial piece of RG8 without sock and sheath inside the tube