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1:1 Balun for HF wire

1:1 Balun for HF wire
    1:1 50 ohm balun for use on hf horizontal wire dipoles,it uses an am radio ferrite rod, with 3x14 turns of wire, 10-14 turns should be good for 2-30 Mhz
post 01 Jan 2026



Toroid & balun Links →

191



Balun a larga banda da 160 metri a 6 metri
Un oggetto che non deve mancare nel nostro shack e soprattutto collegato alle antenne, deve essere il bal-un. Un bal-un serve a fare in modo che la corrente scorra in maniera perfettamente simmetrica in una antenna bilanciata e non torni sul coassiale di alimentazione

Balun 9:1 long wire
To complete my season, I needed an antenna for bands over 40 meters, that is 40, 80, and 160 meters, but the useful space is a little tight, consulting several articles on the subject, I decided to build a balum of 9: 1 and stretch a wire LongWire in the space available

Balun A switchable 1:1 - 4:1 balun
I have been experimenting with an off center fed dipole for for field operation, and the antenna called for a 4:1 balun on most bands, and a 1:1 balun on 15 meters

Balun en courantby
When a coax feeds a symmetrical antenna, currents flow along the braid of the coax. This can cause TVI and distort the antenna radiation pattern.


Microsat

Microsat Ham radio shop for ulari project, aprs, aprs with radio, bluetooth, gps, gsm, ham radio interfaces, weather,accessories, cables to radio

Kits and Components

Amateur radio kits by Kanga US

Enigma Component Shop

Enigma Component Shop Cable & wire,capacitors, connectors, crystals/oscillators, filters, hardware,kits/modules,test & measurement

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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

Lego MindStorms Iambic Keyer and Paddl

Lego MindStorms Iambic Keyer and Paddl I made this Iambic Paddle and keyer combination out of Legos, and the Lego Mindstorms Robotics Invention system

The Vocal Keyer

The Vocal Keyer The vocal keyer for Yaesu FT1000 MarkV

Homebrew T-Match Antenna Tuning Unit

Homebrew T-Match Antenna Tuning Unit Build a new ATU that would cover 160m and also handle much more power

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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