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Tuning an Isotron 20 Mtr antenna
I have this Isotron purchased some time ago to use on 20 meter psk31 but never got around to it. In fact, the first time I played around with it the tuning did not make sense
post 14 Feb 2024
Antenna Isotron Links →
Extremely Short Transmitting Antennas
There may be some environments where the dreaded antenna policy is so strict that you not dare put any short-wave antenna of usual dimensions outside
Isotron antenne van PA0UNT en PA1AMS Voor de 80m band
Nico has experienced that this antenna system works better indoors than a magnetic loop antenna
Isotronantennen 80-40-30-20-17-15-12 und 10
Experiments with isotron antenna for the 80-40-30-20-17-15-12 und 10
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There may be some environments where the dreaded antenna policy is so strict that you not dare put any short-wave antenna of usual dimensions outside
Nico has experienced that this antenna system works better indoors than a magnetic loop antenna
Experiments with isotron antenna for the 80-40-30-20-17-15-12 und 10
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
Qrm Eliminetor The principle is based on the fact that the interfering signal from the main antenna coming from the local interfering signal is phase-shifted by means of an auxiliary antenna so superimposed that eliminate the interference
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