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Magnetic loop antenna for 160-15 metres
Below is a diagram and some construction details. Note that the element is continuous except for a gap at the top across which the variable capacitor is wired
post 05 Dec 2024
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La antena de cuadro o Magnetic Loop
The first antenna of this type that I made, was something similar to a frame antenna similar to those used by the old AM radio
Loop 1.5-30 MHz with preamplifier
The range of 2.7 to 7.3 MHz. The variable tuning capacitor is a 3 recovery air cages on an old tube radio receiver
Loop Magnetica per i 144 mhz
Ideale per il mobile, radio cluster, beacon VHF
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The first antenna of this type that I made, was something similar to a frame antenna similar to those used by the old AM radio
The range of 2.7 to 7.3 MHz. The variable tuning capacitor is a 3 recovery air cages on an old tube radio receiver
Ideale per il mobile, radio cluster, beacon VHF
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