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Multiband verticals
Delta 6B GP product of the Czech company Delta Electronic is a six-band, with accessories up to eight-band, trapped eight-meter vertical with full-length radials for amateur radio
post 04 Dec 2024
Antenna Vertical Links →
Broadband vertical antenna
The following notes show the design and construction of a Broadband HF Vertical antenna which does not require a tuner
Triband hf vertical
Ground plane vertical antenna for the 20, 15 and 10m bands
Verticale utilizzando una antenna MFJ-1954 e bobina
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
Butternut HF2V Modeling
using a ground-mounted Butternut HF2V for several years now with great success
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The following notes show the design and construction of a Broadband HF Vertical antenna which does not require a tuner
Ground plane vertical antenna for the 20, 15 and 10m bands
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
using a ground-mounted Butternut HF2V for several years now with great success
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
Qrm Eliminetor The principle is based on the fact that the interfering signal from the main antenna coming from the local interfering signal is phase-shifted by means of an auxiliary antenna so superimposed that eliminate the interference
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