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2M 144 Mhz yagis
Follow the instructions carefully to avoid making mistakes
post 19 Mar 2024
Antenna for UHF VHF Links →
23cm double bi quad antenna
It's fed with a short length of RG-223 co-ax, fitted with a balun sleeve made from the braiding off some UR67
2 meter VHF Antennas 7 elements and 10
2 meter VHF Antennas 7 elements and 10
2 Meter 5 Element Quad
I used EZNEC to model this antenna. I got the boom from a large UHF TV antenna that was 70 long
12 element zl speciale
155
It's fed with a short length of RG-223 co-ax, fitted with a balun sleeve made from the braiding off some UR67
2 meter VHF Antennas 7 elements and 10
I used EZNEC to model this antenna. I got the boom from a large UHF TV antenna that was 70 long
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