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SteppIR BigIR Vertical Antenna Assembly & Installation
The BigIR Vertical omnidirectional coverage on all of the HF bands from 80m – 6m and is a good DX antenna due to a vertical antenna's characteristic low-takeoff angles
post 04 Dec 2024
Antenna Vertical Links →
A Modified Petlowany Antenna
It is essentially a very short dipole with spiral-wound coils at each end
Antena vertical
Outside of the wave traps there is nothing difficult in the construction of this antenna; the traps are of homemade construction and we will use a simple ingenuity to make them
Vertikal Dipole 10-40m
The modelled inverted-V antenna is full size and will have a higher efficiency than a shortened horizontal dipole. If we consider a full size 1/4 wavelength
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It is essentially a very short dipole with spiral-wound coils at each end
Outside of the wave traps there is nothing difficult in the construction of this antenna; the traps are of homemade construction and we will use a simple ingenuity to make them
The modelled inverted-V antenna is full size and will have a higher efficiency than a shortened horizontal dipole. If we consider a full size 1/4 wavelength
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