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Isotron antenna for 80m band
For the 80 m band the coil is wound with black 1.5 mm installation wire of approximately 10 m length. The antenna resonates at 3,630 MHz with a bandwidth of + and - 22 kHz
post 22 Dec 2024
Antenna 80 meter Links →
Broadbanding half square antenna for 80mt
Half-square antenna is by naturerelatively narrow band.1On80 meters, for example, an SWR be-low 2:1 can be achieved anywhere in theband, but only over a relatively small range 60 to 100 kHz
Double bazooka/coaxial dipole antenna
A typical, dipole antenna has bandwidth of about 50 to 100 KHz
Hex Array 80/40 Meter Vertical
Homebrew 80/40 meter trap vertical. The trap is a coaxial cable trap, made from RG-213 cable
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Half-square antenna is by naturerelatively narrow band.1On80 meters, for example, an SWR be-low 2:1 can be achieved anywhere in theband, but only over a relatively small range 60 to 100 kHz
A typical, dipole antenna has bandwidth of about 50 to 100 KHz
Homebrew 80/40 meter trap vertical. The trap is a coaxial cable trap, made from RG-213 cable
Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice
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