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Semplice accordatore per swl
Il segnale reso disponibile alla presa sulla bobina L1, a causa del numero variabile che delle spire al momento ci sono, col variabile C1 costituisce un semplice circuito accordato L/C
post 30 Oct 2024
Antenna Transmatch tuner Links →
Pi-filter ATU voor Beams en Verticals
An antenna tuner for coaxial cable powered resonance antennas, such as beams and verticals for 10 to 20 m, can easily be made with normal components
QRP Antenna Tuner
The tuner was built in an aluminum project box. Various holes were drilled in the box for mounting all of the components. When laying out the parts, leave plenty of room around the sides of the components to prevent RF arcing
S match A symmetrical and universal ATU
The Balanced Universal ATU System. The system is intended to accommodate balanced antenna systems transmitting on a very wide frequency spectrum, ranging from 160 m band up to 10 m band
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An antenna tuner for coaxial cable powered resonance antennas, such as beams and verticals for 10 to 20 m, can easily be made with normal components
The tuner was built in an aluminum project box. Various holes were drilled in the box for mounting all of the components. When laying out the parts, leave plenty of room around the sides of the components to prevent RF arcing
The Balanced Universal ATU System. The system is intended to accommodate balanced antenna systems transmitting on a very wide frequency spectrum, ranging from 160 m band up to 10 m band
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
Interface-for-digital-broadcasts-with-integrated-audio 4-port HUB, with a TUSB2046. With port 1 of the HUB we drive the FT232RL; with port 2 the PCM2904, furthermore, we decided to leave ports 3 and 4 free