Un moderno accoppiatore variabile per bobine
Un sistema pratico, economico e funzionale per realizzare un accoppiatore variabile per bobine, gia' usato nella Radio a reazione presente nel sito, consiste nell’utilizzare un tubetto vuoto di colla per ufficio
post 18 Sep 2023
Antenna for UHF VHF Links →
Antenna HALO per i 70 mhz
L’alimentazione avviene mediante il sistema denominato gamma-match con il condensatore
Antenna quad 144 MHz
Versione da appartamento leggermente modificata a 6 elementi con guadagno teorico di 13 Db
Antenna HALO
A halo antenna, or halo, is a horizontally polarized, omnidirectional 1⁄2 wavelength dipole antenna, which has been bent into a loop with a small break on the side of the loop directly opposite the feed point
Antenna Yagi 1240 Mhz
Yagi for the 23 cm band drawing by DL9AQ
Antenne big-whell
Consists of three full-wave horizontal loops similar to a clover
193
L’alimentazione avviene mediante il sistema denominato gamma-match con il condensatore
Versione da appartamento leggermente modificata a 6 elementi con guadagno teorico di 13 Db
A halo antenna, or halo, is a horizontally polarized, omnidirectional 1⁄2 wavelength dipole antenna, which has been bent into a loop with a small break on the side of the loop directly opposite the feed point
Yagi for the 23 cm band drawing by DL9AQ
Consists of three full-wave horizontal loops similar to a clover
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