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A Quad-Helix Antenna


According to specs provided, each helix has a nominal gain of 18 db, so the quad has a gain of around 24 db at 1420 MHz
post 21 Feb 2024
A Quad-Helix Antenna

Antenna Wifi Links

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Antenna Theory Helical
Helical antenna is an example of wire antenna and itself forms the shape of a helix. This is a broadband VHF and UHF antenn

BiQuad 802.11b Antenna
for the 110 x 110 mm reflector, but it will be just as effective if made out of sheet brass or copper

Building a biquad antenna for wireless 802.11b
They have superior sidelobe performance when compared with a wire grid antenna

Can feed for 23cm and 13cm
A copper or brass disc, 23cm diameter, is soldered to the outer lip of a 95mm i.d. copper or brass tube


Antenna splitter per VHF-UHF per quattro ricevitori

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

Kits and Components

Amateur radio kits by Kanga US

50MHz to 28MHz RX Converter

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