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Battle creek special 40/80mhz


The Battle Creek Special is a 3-Band-vertical Marconi-antenna for the bands 40 m/80m/160m
post 04 Dec 2024
Battle creek special 40/80mhz

Antenna 40 Meter Links

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Dipolo rotativo per i 40 mt a carico lineare
La lunghezza complessiva puo' essere ridotta fino al 40% della dimensione originale quarto d'onda senza le perdite risultanti dall'utilizzo di una bobina di carico

Electrically short dipole antenna for the 40m band
An antenna whose electrical conductor is much smaller than half the operating wavelength is an electrically short antenna

Multi Band cage Dipole Antenna Project
By efficient we mean an antenna that will radiate 90% or more of the energy output from the transmitter/amplifier, without a tuner

Prototipo di antenna per i 7MHz in 22cm
Prototipo di antenna per i 7MHz di dimensioni maggiori alla precedente, 22cm di diametro

Quad cubical 40 mts
This full size Quad-cubical antenna of an element for the 40 Mts band. It is a very good antenna, both in transmission and reception, it is built with copper wire


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