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Build an antenna for 40 and 80

The solution build an antenna for 40 and 80. The roof on the building is not that big that I could install a full size dipole or inverted V
post 23 Sep 2020

Coils Traps Antennas Links


An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, and 80 Meters
A coaxial-cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF

Simple Building and Tuning of Traps
Traps are useful for multiband operating of all kinds of antennas

40 & 80 meter trap dipole
Coil 78 turn of insulated copper Wire no spaced

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

Coil Design
The coil design is one of the most difficult and important parts of the coilgun