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50mHz 6 metre Delta Loop
Delta loops have an impedance of around 100 ohms therefore a quarter wave of 75 ohm coax in the feeder will bring the impedance to near enough the required 50 ohms that is expected at the transmitter
post 12 Aug 2024
Antenna 6 meter Links →
50MHz 4-element Long Yagi
It's built with a round 32mm boom and 20mm elements, originally it was designed with it's own boom-to-mast attachment, but this turned out to be too weak, and I used one from an old Parabeam
50MHz Moxon Rectangle
The Moxon has been on my chimney for nearly nine months as of April 2007 through up to 50 MPH winds and some light icing with no problems
Antenna direttiva 3 elementi per 50 mhz
The boom is made up of a single piece in 20x20 aluminum with a length of 240 cm
70 MHz - 50-MHz reflector Hentenna
The Hentenna can be changed from a bidirectional antenna to an interesting directional antenna
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It's built with a round 32mm boom and 20mm elements, originally it was designed with it's own boom-to-mast attachment, but this turned out to be too weak, and I used one from an old Parabeam
The Moxon has been on my chimney for nearly nine months as of April 2007 through up to 50 MPH winds and some light icing with no problems
The boom is made up of a single piece in 20x20 aluminum with a length of 240 cm
The Hentenna can be changed from a bidirectional antenna to an interesting directional antenna
23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency
50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection
Voice Recorder Gestito dall'integrato in questione ed offre la possibilità di registrare più messaggi per una durata massima di un minuto con buona fedeltà di riproduzione