Multidipole with halfwave dipoles for both 80 and 40 meter on common balun and 50 ohms coaxial cable.

Antenna analysis with Rigexpert 230, LA4XLA 26 december. (Click for large version)

80 meter:

Multidipole_80_40m_80

40 meter:

Multidipole_80_40m_40

Smith chart for 80meter:

Multidipole_80_40m_80_Smith