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Rhombic antenna forshortwave radio broadcasting
A considerable amount of power may be lost in the terminating resistance and represents the price that has to be paid for some desirable features such as simplicity of construction, relatively wide bandwith of operation and high directivity gain
post 06 Jun 2024
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40 Meter lazy h array
The LAZY "H" antenna is a general type of antenna that is in the curtain array family. By placing TWO 1 wavelength dipoles in a plane that is at right angles to the direction of maximum
Antenna fra due carrucole
Fa parte delle antenne povere, ossia delle filari
Antenna Tilted Terminated Folded Dipole, or TTFD
Of all the antennas I have built, my favorite is the Tilted Terminated Folded Dipole, or TTFD for short
Antenna dipolo 6 bande senza trappole
Un'antenna realizzata in quattro e quattr'otto e con una spesa di meno di 50 Euro
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The LAZY "H" antenna is a general type of antenna that is in the curtain array family. By placing TWO 1 wavelength dipoles in a plane that is at right angles to the direction of maximum
Fa parte delle antenne povere, ossia delle filari
Of all the antennas I have built, my favorite is the Tilted Terminated Folded Dipole, or TTFD for short
Un'antenna realizzata in quattro e quattr'otto e con una spesa di meno di 50 Euro
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