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9 Band HF Vertical Antenna
The body of the aerial needs some special constructive elements to tune it into a resonance within different amateur bands. These elements can be concentrated (LC, L, C)
post 04 Dec 2024
Antenna Vertical Links →
40/30/20m Short Vertical Antenna
This paragraph is about how I added" 30 meters to my 20/40 meter short vertica
Antenne verticale fusil a 3 coups
It is a vertical multiband antenna composed of several radiating elements lambda / 4 length fed by a single coaxial cable
Antenne verticale monobande 7MHZ
If the tower can not be isolated from the ground it will be necessary to feed it using a gamma-match
Bigger Multiband Vertical 160-30mt
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This paragraph is about how I added" 30 meters to my 20/40 meter short vertica
It is a vertical multiband antenna composed of several radiating elements lambda / 4 length fed by a single coaxial cable
If the tower can not be isolated from the ground it will be necessary to feed it using a gamma-match
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62