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Balun for s-match
The system is intended to accommodate balanced antenna systems transmitting on a very wide frequency spectrum
post 19 Apr 2024
Toroid & balun Links →
Come e' fatto e come funziona un balun
La piu' semplice delle soluzioni e' rappresentata dal semplice dispositivo a trasformatore
Doublet, Zepp
Twin-lead has been connected to an LDG Electronics 4: 1 Balun. The Balun immediately plug-in to the BNC connector on the back of my K1 transceever via some PL-259 / SO-239 / BNC connector adapters
Here is a 12 m long antenna with a 1:9 balun
I used an old plastic box handy for this test Balun.On the red plug is attached the plug SO239 using rivets
Long Wire Balun
I needed about 60 cm wire 1 mm to be able to have 11 turns around the iron powder core
202
La piu' semplice delle soluzioni e' rappresentata dal semplice dispositivo a trasformatore
Twin-lead has been connected to an LDG Electronics 4: 1 Balun. The Balun immediately plug-in to the BNC connector on the back of my K1 transceever via some PL-259 / SO-239 / BNC connector adapters
I used an old plastic box handy for this test Balun.On the red plug is attached the plug SO239 using rivets
I needed about 60 cm wire 1 mm to be able to have 11 turns around the iron powder core
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