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Balun 9.1 for Antenna Long wire


To complete my season, I needed an antenna for bands over 40 meters, that is 40, 80, and 160 meters, but the useful space is a little tight, consulting several articles on the subject, I decided to build a balum of 9: 1 and stretch a wire LongWire in the space available
post 20 May 2024
Balun 9.1 for Antenna Long wire

Toroid & balun Links

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Balun UN UN
Tutti i miei balun non usano come supporto, toroidi AMIDON di tipo T200-2

Balun trasfomazione multipla
Un balun non e' un dispositivo atto ad adattare normalmente carichi bilanciati antenne Filari con carichi sbilanciati cavi coax

Balun con trasformatore di riga tv
Procurarsi un trasformatore di riga che puo' essere prelevato, da un vecchio

Balun teoria e pratica
BalUn e' necessario chiarire il concetto di alimentazione bilanciata e sbilanciata e di carico bilanciato


23cm Yagi Antenna building

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

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

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