Amateur Radio made in Italy
Article by N5ESE Here’s yet another handy little Altoids QRP project. This makes a great travel companion to the 1:1 current balun and is intended to aid in tuning a balanced antenna or feedline that has a high impedance (100-600 ohms). I’ve even used it successfully to tune a 20 meter, 1/2-wave vertical with 4…
Article by N5ESE Here’s another handy little Altoids QRP project. For Field Day 2002, I wanted to use my new Elecraft K1 (which has an automatic antenna tuner built-in) to feed a full-wave loop on 40 meters, to use on all bands 40 – 15. To preserve the feedline balance (I used 300-ohm ladder line),…
Here’s one of my favorite antennas for QRP portable operation. It provides easy setup in the field, is extremely compact, and provides excellent performance on all bands 80 thru 15 Meters. It’s a non-resonant antenna, but don’t think for a minute that you lose anything from that. Using a field-radial system as shown, the feedpoint…
Loop receiving antenna
A homebrew 13 elements yagi antenna for 144 MHz by I5MZY
Homebrew antenna wire launcher
A new wire antenna on my roof for the 40 meters band, and on the field comparison with the GAP Titan DX.
An homebrew dual band j-pole antenna
Shortening wires, or adding length to wire antennas. A simple method to calculate length.
A Dualband QUAD made with two identical square loops, whose sides measure a quarter wave (?/4), connected together