The overall space does not exceed 2 square metres!!
My Equipment (old set-up! to be updated soon!):
Icom IC756 (HF and 6m traffic).
Yaesu FT-736RDX-Mutec front ends (Satellite).
Icom IC-3210 (packet).
Icom IC-PW1 (HF).
Fritzel W3-2000 dipole h=13m horizontal (80 m, 40 m ... but done several new ones in 20 m with it!).
FD-4 cut for 10 MHz in inverted V (30 m to 10 m).
6JXX6 6el. Yagi over a 7.5m long boom for 6m .... but has a "formed gain pattern" aso on 12m! Here you may find some technical description of the antenna.
PKW
THF1e rotary dipole for 10-15-20 metre bands.