Hits 

Antenna j-pole Bibanda vhf-uhf


Antenna j-pole Bibanda vhf-uhf

Antenna j-pole Biband vhf-uhf photo demonstrations

post 29 Sep 2024


Antenna jpole Links

80



Antena OSJ dual band VHF / UHF com um cabo
It consists of a half-wave dipole element, which instead of being fed from the center as is more common is fed from one end in this case, the bottom

Antenne en J alimentee par un cable coaxial
Like the model supplied by a two-wire line, it consists of a radiating element of half-wave length attacked at its lower end by a quarter-wave line

J-antenna supplied by a two-wire line
The J antenna, so called because of its shape, is generally used on 2m and 70cm, even 23 cm and 6m

Antenne verticale VHF Slim-Jim
The Slim-Jim vertical antenna is of the 1/2 wave type supplied at the end end fed and therefore does not require a ground plane unlike a 1/4 wave type antenna


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