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Antenna boomless tribanda
Questo tipo di antenna, e' tribanda operante nelle gamme dei 6 metri, 2 metri e 70 cm
post 02 Sep 2024
Antenna for UHF VHF Links →
Triband Yagi for 6 m, 4 m and 2 m
Developed with the software EZNEC +5 and has only one feeding point of 50 Ω and a boomlength of 1,25 m
2M 144MHz yagis
Follow the instructions carefully to avoid making mistakes
VHF antenna construction
In making a folded dipole element I used a tube bender, apparently the bending jobs must be done once without failure
Vhf magnetic loop
A magnetic loop has very small bandwidth butunsensitive to man made noise
VHF/UHF Wideband Portable Dipole for the FT-817
A dipole has about 3dB gain over a quartre wave antenna, is why my preference went to a simple dipole
155
Developed with the software EZNEC +5 and has only one feeding point of 50 Ω and a boomlength of 1,25 m
Follow the instructions carefully to avoid making mistakes
In making a folded dipole element I used a tube bender, apparently the bending jobs must be done once without failure
A magnetic loop has very small bandwidth butunsensitive to man made noise
A dipole has about 3dB gain over a quartre wave antenna, is why my preference went to a simple dipole
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