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Dipolo rotativo per i 40 mt a carico lineare


La lunghezza complessiva puo' essere ridotta fino al 40% della dimensione originale quarto d'onda senza le perdite risultanti dall'utilizzo di una bobina di carico
post 13 Jun 2024
Dipolo rotativo per i 40 mt a carico lineare

Antenna 40 Meter Links

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40 meter linear loading rotable
The linear loading assembly functions also as a supporting guy to prevent element sagging. I think the M-Squared folks were very creative in this

40m center loaded vertical antenna 5 metres long
Vertical of 5 meters with central traps for 40m

A Limited space HF antenna review
A 40 meter half wave dipole antenna compressed into such a small size

A Linear Loaded Vertical antenna for 40mt and 80mt
The vertical antenna looks to be the perfect low angle radiator, except for one thing the height of a 1/4 l at 80 metres is 20 metres, or 66 feet, which is not practical to construct


23cm Yagi Antenna building

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

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

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