Justin will be covering some of the developments he has made in the optimisation of rigid Quads for VHF and HF bands, and in particular, some of the hidden benefits of stacking these antennas when changing the way in which they are fed.

Justin, G0KSC, is famous as antenna designer, is the owner of InnovAntennas and developer of the LFA, OP-DES and OWL Yagi and in addition to InnovAntennas, has a self-build information site which presents some of his older, original designs.