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The 40/30 Pyramid antenna
I have something here that I believe is new. If it isn't then that's ok ,I don't use EZNEC or read antenna articles much. I like to innovate. This antenna is an innovation. I have read about a sloping two band Delta loop but it used two feed lines mine uses one. It is called the 40/30 pyramid
post 05 Dec 2024
Antenna Delta Loop Links →
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
Antenna Delta loop bidirettiva
Questa e' una antenna adatta per HF realizzabile senza troppe difficolta', l'unico inconveniente e' che necessita possedere di un discreto spazio dove installarla e di almeno quattro supporti a cui agganciare i loop
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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
Questa e' una antenna adatta per HF realizzabile senza troppe difficolta', l'unico inconveniente e' che necessita possedere di un discreto spazio dove installarla e di almeno quattro supporti a cui agganciare i loop
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
RF Inductance Calculator Mean diameter of the air core coil, measured from conductor centre to conductor centre include the wire insulation thickness, if any
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