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Multiband Semi-Helical Inverted L Vertical
This is my attempt to build an antenna for 80 and 40 meters that will accommodate my installation limitations
post 14 Oct 2024
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Antenna verticale multibanda con semidipoli
This type of antenna, because of the length limitation of the support, can satisfy the need of three bands: 14, 21 and 28 MHz a fourth conductor could find a place on the support in the future
Vertical 75/80 mt
Una verticale ad un quarto d'onda accorciata,di estrerma facilita'
Dual band wire vertical
You can make this antenna with as many vertical radiators as you have room for, and use a variety of insulating materials
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This type of antenna, because of the length limitation of the support, can satisfy the need of three bands: 14, 21 and 28 MHz a fourth conductor could find a place on the support in the future
Una verticale ad un quarto d'onda accorciata,di estrerma facilita'
You can make this antenna with as many vertical radiators as you have room for, and use a variety of insulating materials
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
Voice Recorder Gestito dall'integrato in questione ed offre la possibilità di registrare più messaggi per una durata massima di un minuto con buona fedeltà di riproduzione