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VHF/UHF Wideband Portable Dipole
A dipole has about 3dB gain over a quartre wave antenna, is why my preference went to a simple dipole
post 02 Jul 2024
Antenna for UHF VHF Links →
Logarithmisch-Periodische 2mt und 70cm band
Yagi antenna usually only usable on a narrow frequency band -Monoband. The situation is different with so-called logarithmic periodic directional radiators
Portable 6meter yagi
Boom length of not more that 2M, Reasonable gain,Low cost, Ability to dismantle easily, for transportation
Portable Yagi work on 144MHz
The antenna is matched to the coax using delta arms and a 4:1 coax balun to the dipole. The balun was constructed in the standard way using a loop of about 71cm
QHA Quadrifilar Helix Antenna
Misure per una copertura da 132 a 138 Mhz quindi per i satelliti polari
Reception FM band
The standard T antenna is a pure folded dipole, optimized for the center of the FM band
155
Yagi antenna usually only usable on a narrow frequency band -Monoband. The situation is different with so-called logarithmic periodic directional radiators
Boom length of not more that 2M, Reasonable gain,Low cost, Ability to dismantle easily, for transportation
The antenna is matched to the coax using delta arms and a 4:1 coax balun to the dipole. The balun was constructed in the standard way using a loop of about 71cm
Misure per una copertura da 132 a 138 Mhz quindi per i satelliti polari
The standard T antenna is a pure folded dipole, optimized for the center of the FM band
Antenna splitter per VHF-UHF per quattro ricevitori Chi dispone di una sola antenna e vuole collegarvi più di un ricevitore necessità di uno splitter
Amateur radio kits by Kanga US
50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal