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Linear loaded dipole for 40m
7 MHz a standard horizontal dipole requires approximately 66 feet of wire,and with center and end insulators, ap-proaches 68 feet between rope supports
post 27 Mar 2024
Antenna 40 Meter Links →
Quarter-Wave Vertical Antenna Length Calculator
a quarter-wavelength antenna is easy and inexpensive to build and can be an effective antenna with a low angle of radiation
High Performance 40 Meters Vertical
This shortened easy-to-build vertical, with no-radials, is made from surplus military
Multi dipoles Indoor
Solution of multidipole in the attic
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a quarter-wavelength antenna is easy and inexpensive to build and can be an effective antenna with a low angle of radiation
This shortened easy-to-build vertical, with no-radials, is made from surplus military
Solution of multidipole in the attic
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