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An experimental eight-shaped loop for HF
The idea behind the double loop is that two properly polarised magnetic fields enhance each other and because the two loops are in parallel
post 24 Jun 2024
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Antenna loop per i 40 metri
Viene descritta una antenna per ricezione in banda 40 metri ed illustrati alcuni problemi relativi all'ascolto su frequenze da 3 a 8 MHz
Antenna boucle magetique
A CV from 5 to 250 pF. A CV starting at 2 pF would be ideal for high frequencies. It is also possible to extend the big loop, but it takes up space
Antenna loop per ricezione onde medie
Migliorare la ricezione in onde medie di un qualsiasi ricevitore casalingo
Antenna magnetic octagonal
A magnetic loop antenna of 4 m octagonal perimeter. The 8 sides are 50 cm, the coupling loop is 30 cm in diameter
Antennas for MSF 60 kHz VLF
Long wires can be used to receive the LF MSF signal but at a wavelength of 5000m its unlikely that any of us will actual use a real long wire
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Viene descritta una antenna per ricezione in banda 40 metri ed illustrati alcuni problemi relativi all'ascolto su frequenze da 3 a 8 MHz
A CV from 5 to 250 pF. A CV starting at 2 pF would be ideal for high frequencies. It is also possible to extend the big loop, but it takes up space
Migliorare la ricezione in onde medie di un qualsiasi ricevitore casalingo
A magnetic loop antenna of 4 m octagonal perimeter. The 8 sides are 50 cm, the coupling loop is 30 cm in diameter
Long wires can be used to receive the LF MSF signal but at a wavelength of 5000m its unlikely that any of us will actual use a real long wire
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