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Experimental Short-wave
These circuits perform very well. However, I'm still experimenting
post 08 Aug 2024
Antenna Shortwave Links →
Inverted L antenna per 160 metri
The principle is actually very simple inverted L resonant antenna with a predominance of vertical components particularly advantageous for DX operation
Local QRM/noise reduction
It is not always possible or allowed to tackle the sources of local qrm. What remains is trying to reduce the noise level by means of your antenna system
Loop antenna for shortwave
The small single turn magnetic loop SSTML antenna consists of a single winding inductor, about 3 feet 1 meter in diameter, and a tuning capacitor
Loops, K9AY
A comparison of the real estate needed for four EWEs and the K9AY Loop system shows that the loops need only 1/7 the area of the EWEs, yet they provide the same directional patterns
Magnetic Loop Antenna
The simple remote control was originally designed to operate with a 2.5m portable mag loop for 20-15m and therefore uses batteries
40
The principle is actually very simple inverted L resonant antenna with a predominance of vertical components particularly advantageous for DX operation
It is not always possible or allowed to tackle the sources of local qrm. What remains is trying to reduce the noise level by means of your antenna system
The small single turn magnetic loop SSTML antenna consists of a single winding inductor, about 3 feet 1 meter in diameter, and a tuning capacitor
A comparison of the real estate needed for four EWEs and the K9AY Loop system shows that the loops need only 1/7 the area of the EWEs, yet they provide the same directional patterns
The simple remote control was originally designed to operate with a 2.5m portable mag loop for 20-15m and therefore uses batteries
Antenna splitter per VHF-UHF per quattro ricevitori Chi dispone di una sola antenna e vuole collegarvi più di un ricevitore necessità di uno splitter
Amateur radio kits by Kanga US
50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal