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ON7EQ COAX TRAPS
Ham Radio 20 / 40 Meter Short Coax Trap Dipole Antenna | The Wonderful World of Microcontroller!
A 20- & 30- or 20- & 39-Meter Vertical Trap Antenna
The Coax trap program computes design parameters for the construction of coaxial traps for HF usage. Typically these are constructed from PVC tube and RG58/59 coax
ON7EQ COAX TRAPS
Modeling Trap Antennas
How antenna traps work - IW5EDI Simone - Ham-Radio