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A 3.5-7 Mhz hybrid antenna that takes up little space
The occupied surface is limited to that of the roof of the house, 9 x 12 m, and this leads to a very economical realization of vertical antenna for two bands
post 04 Dec 2024
Antenna Vertical Links →
Antenna verticale multibanda con semidipoli
This type of antenna, because of the length limitation of the support, can satisfy the need of three bands: 14, 21 and 28 MHz a fourth conductor could find a place on the support in the future
Vertical 75/80 mt
Una verticale ad un quarto d'onda accorciata,di estrerma facilita'
Dual band wire vertical
You can make this antenna with as many vertical radiators as you have room for, and use a variety of insulating materials
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This type of antenna, because of the length limitation of the support, can satisfy the need of three bands: 14, 21 and 28 MHz a fourth conductor could find a place on the support in the future
Una verticale ad un quarto d'onda accorciata,di estrerma facilita'
You can make this antenna with as many vertical radiators as you have room for, and use a variety of insulating materials
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