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Loop 1.5-30 MHz with preamplifier


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
post 05 Dec 2024


Antenna Loop Links

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Small Transmitting Loop Antenna Calculator
Small transmitting loop antennas, commonly called magnetic loop

Experience with Loop Antennas for LF and VLF
It was like exploring a new world. I soon heard my first Amateur station on the 136 kHz band, G4GVC, followed by many others

A Wide Bandwidth Active Loop Receiving Antenna
Antenna adatta alla ricezione generale di banda amatoriale a onde corte. Questa antenna e' stata anche utilizzata con successo per la ricezione di segnali QRSS nelle bande di 20, 30, 40, 80 e 160 metri

Antenna Loop e adattamento di impedenza
Loop ad onda intera realizzata per la gamma degli 80 metri

T-Antenna for LF
I receive and transmit on 136 kHz 2200 m LF- band


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