INDOOR MULTBAND DIPOLE FOR 40M - 10M

New (2005) indoor multiband dipole 40m -10m (not to scale)
15m dipole replaced by 40m/15m short-dipole, see below

Antenna wires connected in parallel to HyGain BN-86 Balun

Antenna wires attached to roofspars
Spacing between wires = 0.2m, spacing between roofspars = 0.6m

5.3 uH loading coil, 54% from feedpoint (21 turns on Amidon T200-2)
to fit 40/15m dipole in roofspace (total span 15m)

Detail of end-insulator with wires folded back and twisted
for fine tuning the dipoles for the lower frequencies

Detail of end-insulator with screw terminal and short piece of solid wire
for fine tuning the dipoles for the higher frequencies

SWR-Plot (EZNEC Simulation)

Real SWR-Values (AEA VIA-HF Analizer)