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Low loss wire traps 12 & 17m




Wire traps do exhibit a high Q-factor so are in theory less lossy compared to coax traps, but are NOT SUITED for high power 200w
post 25 Sep 2020


Coils Traps Antennas Links

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Trappole per dipoli
Io ho realizzato un programma chiamato Trap che, con metodo iterativo ma molto rapidamente, sintetizza il filtro, ne calcola il numero di spire e verifica la frequenza di risonanza

Tuning HF Coaxial Antenna Traps
Studiare un sistema accoppiato d'antenne mi sono imbattuto nell'arcinoto modo di tagliare un coassiale esattamente lambda/4

Quick Trapped 15/20m Dipole
The traps were tested using a coupling loop to the homebrew antenna sweeper and with a little squeezing, they tuned to 21.1 MHz

Variable Inductor Design
I have been looking at the typical roller inductor used in antenna tuners and some amplifiers and I have come up with what I think is a better design