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Building short trap dipole


a QST article for a short 40, 80 and 160 meter trap dipole, I decided to pursue construction of this antenna, and bend the 160 meter end wire, if necessary to fit into the yard
post 04 Dec 2024
Building short trap dipole

Antenna Multibands Links

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Windom Antenna
The peculiar aspect of the I7SWX windom is the balun,wound on a simple ferrite rod,instead of the commonly used toroid

Morgain per i 40 e gli 80 metri
This antenna has in its main characteristic, the fact that with only 20 mtof space occupied it works the 80 meters

The Homebrew Buddipole 17m/15m
I made the Buddistick first, then later made the Buddipole. Both are easy to make and work well

Doublet Antenna
The ATU design gives a reasonable 'Q' factor so you will have to tune it regularly. Eurotherm PID controllers and a stepper-motor can make a good auto-ATU

The Dipole antenna
The DIPOLE antenna, here some reference data, pointers and ideas that may help you


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