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160/80/40 meter band trapped dipole
- I use the following dimensions, 40m trap 63/16 80m trap 140/42 millimeters before/after heat treatment
post 09 Jan 2026
Coils Traps Antennas Links →
Coaxial Traps Grid-dip meter method
A trap is a parallel resonant circuit network that can perform either of two functions in an antenna system, depending on whether the traps are resonant at the operating frequency
Coil Design
The coil design is one of the most difficult and important parts of the coilgun
Cool It
I have owned an AT-AUTO since they were first released and its given good service. One area that it let me down was 10M
Current Through a 75m Bugcatcher Loading Coil
Many experiments and measurements have been made on loading coils using net standing wave current
Trap Dipole 7, 10, 14, 18, 50 MHz
Trap dipole 7-10-14-18-50mhz with balun coax cable
96
A trap is a parallel resonant circuit network that can perform either of two functions in an antenna system, depending on whether the traps are resonant at the operating frequency
The coil design is one of the most difficult and important parts of the coilgun
I have owned an AT-AUTO since they were first released and its given good service. One area that it let me down was 10M
Many experiments and measurements have been made on loading coils using net standing wave current
Trap dipole 7-10-14-18-50mhz with balun coax cable
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