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Build a 160-10 Meter Guanella 1:4 balun


Wind two FT240-61 ferrite cores exactly as shown in Figure 1, and then add double-sided tape as shown in Figure 2
post 14 Mar 2024
Build a 160-10 Meter Guanella 1:4 balun

Toroid & balun Links

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Avvolgimento trasformatori in ferrite
Per ottenere le migliori prestazioni da un trasformatore di impedenza avvolto su toroide o ferrite binoculare occorre provarlo su un carico che abbia la stessa impedenza della Beverage, tipicamente 450 Ohm

Baluns for 88-108 MHz
You can make a simple current balun by coiling coaxial feedline in a particular way

Balun 1:6-Balun for dickerdipol
The balun is suspended at a distance of about 1 m from the mast

Balun 1:1 Larga banda da 1.8 a 50 MHz
Questi due BALUN 1:1 sono indicati per potenze non superiori ai 500 Watt


The K9AY loop antenna for 160 and 80m bands

The K9AY loop antenna for 160 and 80m bands You don't have the space to put up a 4 beverage antenna's, an ewe or a 4-square and want 'good ears' on 160 and 80m? no problems try a k9ay loop antenna

Satellite Antenna Rotator Controller and TRACker

Satellite Antenna Rotator Controller and TRACker ARCTRAC is a portable integrated satellite tracking system

Duplexer 2m-70cm

Duplexer 2m-70cm- Usare un'antenna bibanda 2/70 con due radio separate V/UHF, usare due antenne separate V/UHF con una singola radio bibanda