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Balun 1:1 - 1:4 - 1:9
Ho fatto una ricerca cercando sul web pagine relative ai tre tipi di balun piu' diffusi 1:1, 4:1, 9:1
post 09 Apr 2024
Toroid & balun Links →
Multi-Magnetic Balun 1:9 , 1:16 und 1:4
Take 0.7mm diameter copper wire, cut a length of 44cm and a length of 132cm
More Fun With Baluns
has a whole chapter on building 4:1 baluns. After reading through it, I decided to build the Ruthroff design
QRP 1:1 Current-type Balun
This is actually a ferrite-loaded coaxial RF chokewhich just happens to yield the same result as a 1:1 current balun
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Take 0.7mm diameter copper wire, cut a length of 44cm and a length of 132cm
has a whole chapter on building 4:1 baluns. After reading through it, I decided to build the Ruthroff design
This is actually a ferrite-loaded coaxial RF chokewhich just happens to yield the same result as a 1:1 current balun
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