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Portable Magnetic Loop Antenna 20-30m
Described here is a simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres
post 05 Dec 2024
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Experiences with Loop antennas at
Frame loop antennas are used on 136 for receiving and usually consist of around 50 turns of wire on a 1 metre or so square framework
Antenna LOOP per 80 metri, solo ricezione
The expected working band is that of 80 meters, electrically and estatically tuned LOOP
Magnetic loop square antenna
Operating bands tested 40m-30m-20m
A Receiving Array for 160 m Through 2200 m
Receiving antenna for LF-MF with good performance from 100 kHz through 2 MHz
150
Frame loop antennas are used on 136 for receiving and usually consist of around 50 turns of wire on a 1 metre or so square framework
The expected working band is that of 80 meters, electrically and estatically tuned LOOP
Operating bands tested 40m-30m-20m
Receiving antenna for LF-MF with good performance from 100 kHz through 2 MHz
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