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A Stealthy HF Coat Hanger Antenna
You're looking at a 110 foot inverted-V, fed with homebrew ladder line
post 10 Aug 2024
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Indoor Vertical Antenna
The vertical element consists of 2 one meter pieces of aluminum tubing used for hanging curtains. One piece is 1/2 in diameter and the other is 5/8 in diameter, so they could be telescoped
Isotron antenna for tight spaces
Realization of the antenna. You need a gray PVC tube 32 mm in diameter and 1 meter long. The choke will be made with sheathed electrical wire 2.5 mm
Linear loaded short dipole
My linear loaded dipole on both sides by 1.8 m in order to cover the 20 m band. SWR is ok without modification of the 1 : 4 transformation line
Multiband-Dipol DO-Antenne
A multiband dipole was created for the 80m, 15m and 10m bands with a length extension of only around 19 meters
X-Beam antennas
The X-Beam is a high-performance broad-band antenna that is ideal for Ham radio operators with limited space
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The vertical element consists of 2 one meter pieces of aluminum tubing used for hanging curtains. One piece is 1/2 in diameter and the other is 5/8 in diameter, so they could be telescoped
Realization of the antenna. You need a gray PVC tube 32 mm in diameter and 1 meter long. The choke will be made with sheathed electrical wire 2.5 mm
My linear loaded dipole on both sides by 1.8 m in order to cover the 20 m band. SWR is ok without modification of the 1 : 4 transformation line
A multiband dipole was created for the 80m, 15m and 10m bands with a length extension of only around 19 meters
The X-Beam is a high-performance broad-band antenna that is ideal for Ham radio operators with limited space
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