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A Modified Petlowany Antenna


It is essentially a very short dipole with spiral-wound coils at each end. Each coil contains a quarter wavelength of wire at the desired antenna frequency
post 04 Dec 2024
A Modified Petlowany Antenna

Antenna Vertical Links

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My big vertical antenna project
The antenna project, specifically a DX-Engineering, Model DXE-MBVE-1, 43 foot mono pole vertical antenna

Progetto antenna verticale 10-20-40
Nel nostro caso uno stilo di poco piu' di 9,5 metri con un adattatore di impedenza alla base,puo' funzionare su tutte le bande HF dai 10 agli 80mt

Phasing short hf vertical antennas
The initial 40 meter phased array consists of two 10 foot high elements spaced one-half wave length apart


PIC-Keyer

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

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

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