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2-element Parasitic Vertical Array for 80

2-element Parasitic Vertical Array for 80
    Monopole is 20.2 meters long and 50 mm diameter aluminum, fed at the bottommost wire segment. The chosen diameter is an average value assuming a tapering schedule for telescoping aluminum tubes
post 23 Mar 2026



Antenna 80 meter Links →

81



Antenne double-bazooka
The double-bazooka consists of 1/2 lambda of coaxial cable cut in the center or twice 1/4 of lambda

Antena doble Bazooka para 80 metros
The antenna called double bazooka was designed to be used in radar by the staff of M.I.T.

1/4 Vertical bazooka antenna for the 40m
I needed a omnidirectional antenna for the 40m here is the schema of the antenna

Coaxial Antennas
I constructed a simple horizontal dipole with each half comprising RG58 coaxial cable about 35 inches 900mm long


eYou.com.au RF shop

eYou.com.au RF shop Test Instruments, RF Coaxial Cable, RF Coaxial Connectors, Coaxial Attenuators, Supplier in Australia, melbourne

Radioassistance

Radioassistance Radioassistance E Kenwood Dealer, vendita ricetrasmittenti, antenne, parti di ricambio, elettronica

SunCalc

SunCalc SunCalc - sunrise, sunset, shadow length, solar eclipse, sun position, sun phase, sun height, sun calculator, sun movement, map, sunlight phases, elevation, Photovoltaic

    Antennas Type

    10 m, 12 m, 15 m , 17 m, 20 m, 2 m, 23 cm, 30 m, 40 m, 6 m, 70 cm, 80 m| 160 m| 60 m, 136 khz, Bazooka, Beverage, Cb Antenna, Collinear, Cobweb, Dipoles, Delta Loop, Eh, End_fed antenna, EWE Antenna, Fan Dipole, Fractal Antenna, Folded Dipole, G5RV, Halo, Helix, Hentenna, Hidden Antenna, Hf mobile HexBeam, Isotron, Jpole, Loop, Log Periodic, Low Band Receiving, Lideband, Moxon, Multiband, Nvis, Morgain, Ocf Fed Dipole, Quad, Slot, Spiral antenna, Vertical, Vhf-Uhf-Shf, Wifi & Ghz, Windom, Wire, Yagi,
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Quarter wave 80 meter vertical antenna

Quarter wave 80 meter vertical antenna An RF switch is convieniently mounted at the top to switch between 80 and 160 Meter operation

The Folded Dipole

The Folded Dipole The Folded Dipole is not used much amongst Radio amateurs, probably due to the fact that this antenna uses twice as much wire as a single-wire dipole

Rf Directional Power Meter

15 Element Wire Log-Periodic 7MHz 30MHz Balun necessary, Double-boom 60/18mm, electrically fed = increased gain

Wireless cw iambic memory keyer

Wireless cw iambic memory keyer- Cross country wireless cw iambic memory keyer

The Vocal Keyer

The Vocal Keyer The vocal keyer for Yaesu FT1000 MarkV

Antenna bi-quad

Antenna bi-quad Costruzione di questa antenna biquad dal guadagno di circa 8-10 dB

50 MHz preamp Gain 26dB with the BFG135

50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection

Calcolo induttanza bobina in aria

Calcolo induttanza bobina in aria Nei dati immessi usare il punto (.) come separatore e non la virgola

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