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Antenna quadrifilar helicoidal
The quadrifilar helicoidal antenna quite a mouthful is easy to construct even though it does look complicated, and the results are excellent
post 13 May 2024
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
153
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
Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice
Amateur radio kits by Kanga US
Pcs Electronics RF power amplifiers-pallets archives-ABC of FM AM DAB+ DRM radio transmitters