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The 450 OHM Ladder Line Slim Jim Antenna
Want to homebrew an antenna for 2M? Want something that actually works well
post 10 Nov 2024
Antenna jpole Links →
Vertical antenna Slim Jim
The slim jim has more bandwidth or a wider range of frequencies than the jpole
VHF End-Fed Half-Wave J-Pole
The Folded Dipole Antenna, with balsa wood strips and epoxy resin for strength and protection, and the dipole was made from 1/16" diameter
Verticale alimentee en J
All these dimensions can be extrapped to other frequencies,example for 70 CM 132/207 * 69 = 44 cm
Antena dual VHF-UHF tipo SLIM-JIM
Using 300 Ohms parallel cable, the Slim Jim has the following characteristics, bandwidth with 1.5: 1> 4MHz
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The slim jim has more bandwidth or a wider range of frequencies than the jpole
The Folded Dipole Antenna, with balsa wood strips and epoxy resin for strength and protection, and the dipole was made from 1/16" diameter
All these dimensions can be extrapped to other frequencies,example for 70 CM 132/207 * 69 = 44 cm
Using 300 Ohms parallel cable, the Slim Jim has the following characteristics, bandwidth with 1.5: 1> 4MHz
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