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A 9:1 Balun For Your End Fed Antenna


post 16 Dec 2021


Toroid & balun Links

213



Come e' fatto e come funziona un balun
La piu' semplice delle soluzioni e' rappresentata dal semplice dispositivo a trasformatore

Come autocostruire un bal-un di tensione 1:32
La ricerca di un'antenna piu' silenziosa per la ricezione delle onde medie e delle HF mi ha spinto a realizzare il balun 1.32 che vi propongo

Doublet, Zepp
Twin-lead has been connected to an LDG Electronics 4: 1 Balun. The Balun immediately plug-in to the BNC connector on the back of my K1 transceever via some PL-259 / SO-239 / BNC connector adapters

Here is a 12 m long antenna with a 1:9 balun
I used an old plastic box handy for this test Balun.On the red plug is attached the plug SO239 using rivets

Long Wire Balun
I needed about 60 cm wire 1 mm to be able to have 11 turns around the iron powder core

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| 136 khz
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