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Parallel Wire Impedance Calculator
This tool is designed to calculate the inductance of two parallel wires
post 27 Apr 2024
Antenna Feed Lines Links →
Scaletta o ladder line
La linea a scaletta o ladder line o linea bilanciata e' uno dei segreti nascosti nel felice impiego di antenne multibanda non risonanti
The Effects of VSWR on Transmitted Power
The Effects of VSWR called the Voltage Standing Wave Ratio, or VSWR, of an antenna system. There is a lot of good information available on VSWR as well as a lot misconceptions
Let's Talk Transmission Line
Modern solid state radios expect a load impedance of 50 Ω, resistive connect them to an antenna the feed-point impedance of which can be anythin
Transmission lines for dummies
450 ohm Ladder Line requires a 9:1 balun in order to match to a 50 ohm line
A ladder line antenna tuner for HF
I want to use my 2 x 20 m (130 Feet) dipole for all HF-bands except parts of 160 m with a 450 ohms ladder line feeder to minimize feeder losses
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La linea a scaletta o ladder line o linea bilanciata e' uno dei segreti nascosti nel felice impiego di antenne multibanda non risonanti
The Effects of VSWR called the Voltage Standing Wave Ratio, or VSWR, of an antenna system. There is a lot of good information available on VSWR as well as a lot misconceptions
Modern solid state radios expect a load impedance of 50 Ω, resistive connect them to an antenna the feed-point impedance of which can be anythin
450 ohm Ladder Line requires a 9:1 balun in order to match to a 50 ohm line
I want to use my 2 x 20 m (130 Feet) dipole for all HF-bands except parts of 160 m with a 450 ohms ladder line feeder to minimize feeder losses
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