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Inverted-L for 80m & 160m


The 18m glassfibre pole from SPIDERBEAM is used, but without the top section too fragile to support the weight wind load of the 80m trap coil
post 24 Jan 2024
Inverted-L for 80m & 160m

Antenna 80 meter Links

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80 Meter Tower Vertical with Short Radials

The modelled resistance component of the feed point impedance at 3.65 MHz is 80 ohm. It is high due to ground loss and being well off resonance. I chose to simply place a capacitor load in series with tower monopole, chosen to have a reactance of equal magnitude to the inductive reactance of 44 ohm at 3.65 MHz. This requires a capacitor of 1000 pf

Single Support Gain Antennasfor 80 and 160 Meters
Examples of antenna ,Sloper Arrays, having a tower

Dual Band Antenna 40-80m
PVC Diameter 50mm, total coil turns 78, wire 1.25 mm, for PVC size Diameter 42mm (1 1/4′) the number of turns 89 turns around 100uh

Dipolo rigido nvis 40-80m
Dipolo caricato sulle bande dei 40m-80m

Skyloop Antenna 3.5 to 50 MHz
I decided to try a new type of hf antenna skyloop or deltaloop


Dipole 80/40 and 20/10 meters with tuner

Dipole 80/40 and 20/10 meters with tuner The wire used is an enamelled copper wire with a diameter of 1.9 mm and a length of 3 meters, often used in transformers

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

Quad Stacked Omni 2.4/5 GHz Antenna

Quad Stacked Omni 2.4/5 GHz Antenna Compact Omni head design dual Band Frequency beamwidth: 360° Horizontal, 15° Vertical quad Stack improves gain to 12dBi