coil master

Matching Coil Adjustment - There is a specific procedure which must be followed if proper adjustment of a shunt matching coil is to be achieved.

Barker & Williamson - Dipole antennas, unique broadband antennas, trap dipole antennas, coils, accessories for HF radio

Mac Antenna Master - Dipole, Yagi, Vertical, Cubic quad, Log periodic, J-pole, coil, and transmission line design package for the Macintosh