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Build a Multi-Band Mono Delta Loop


Make up a 14 MHz delta loop using two separate lengths of 10 meter plus 10 centimeters each of No. 12 or No. 14 stranded copper wire and connect them in series with an insulator as shown at the bottom of Fig 1. The 10 cm extra wire is passed through the end hole of the insulator then looped back to the wire element to form a splice for later soldering
post 02 Feb 2024
Build a Multi-Band Mono Delta Loop

Antenna Delta Loop Links

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Delta Loop antenna 3.5 - 30 MHz
84 m Total Wire Length (L1 + L2 + L3) - 28 m Triangle Length (L1 = L2 = L3) - 10.56 m 75ohm coaxial length

Delta Loop Lazy loop from 160 to 10 meters
The loop is 3.650 Mhz. For matching the loop on the other bands I use a Toroid Balun with

Double Half Delta DHD
In teoria dovrebbe restituire un segnale basso ma con un buon rapporto S/N, pressappoco come una Beverage. L' antenna e' costituita da due triangoli di filo sospesi a un metro e mezzo da terra


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