Amateur Radio - Multi-band Trap Dipole Antenna
Ham Radio 20 / 40 Meter Short Coax Trap Dipole Antenna | The Wonderful World of Microcontroller!
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HF Multiband Trap Dipole » Electronics Notes
Traps for 60 meter band Dipole or inverted V tuned as a pair
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30- or 20- & 39-Meter Vertical Trap Antenna
