Hits
Coax Balun 1:4 and 1:1
An air-wound balun made with coaxial cable can not become saturated because no powder iron or ferrite core is present.
The system consists of two equal lengths of coaxial cable which are connected in parallel on the one side and in series on the other. If 50 ohm or 75 ohm coaxial cables are used transformation takes place of respectively 25 ohm : 100 ohm and 37.5 ohm : 150 ohm.
post 15 May 2024
Toroid & balun Links →
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
210
La piu' semplice delle soluzioni e' rappresentata dal semplice dispositivo a trasformatore
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
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
I used an old plastic box handy for this test Balun.On the red plug is attached the plug SO239 using rivets
I needed about 60 cm wire 1 mm to be able to have 11 turns around the iron powder core
40m Compact 4-Square Antenna Compact 4-Square Antenna – EA5AVL The EA5AVL 40M Compact 4-Square Antenna was designed to provide excellent DX communications on the 40m band
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
Spiderbeam 10-15-20m E' una Yagi tribanda full-size leggera, fatta di tubi in vetroresina e filo