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Un dipolo 40-80 m low band


Il dipolo e' un classico trappolato, ma va meglio di quelli commerciali che ho provato, costa moltomeno e leva lo sfizio di farselo da se


Un dipolo 40-80 m low band

Antenna 80 meter Links →

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Antenna GP 3,5 MHz a carico lineare
This vertical antenna for 80 meters at linear load, of 1/2 wave is born from the need to have a good angle of radiation

Antenna HF multibanda deltaloop 6-160 metri
We can choose between loop-magnetic and DELTA LOOP, the latter does not require great skills and particularly high manual skills to build it

Antena para 80/40 metros, bobinada e de alta performance
Antenna for 80/40 meters, traps and high performance

2-element Parasitic Vertical Array for 80
this article I want to look further at radial topology of vertical arrays for the low bands


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Arduino CW Keyer

Arduino CW Keyer Questo progetto, dal nome yaacwk, sta per Yet Another Arduino CW Keyer

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

Rf Directional Power Meter A wide dynamic range power meter using a directional coupler, AD8307 Log Amplifier and arduino microcontroller

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

Helix 2.425 GHz band

Helix 2.425 GHz band Broad bandwidth in the 2.425GHz band>

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

Bazooka Antenna Calculator

Bazooka Antenna Calculator Programma caculator for bazooka antenna,with measurements already calculated for frequeze used by radio amateurs

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