Franz was first licensed in 1964 and has since operated from 4W1, JY, TA, C5, OE/A, J2Ø, J20/A, 3A, T7, HBØ, C31, VK9Z, PYØ, PYØS, KHØ, FOØ, STØ, ET, E3, E3Ø, E3ØG, 9E2, 7O, 3XA8, J5, 6O, 5U, XRØX, 3C0, 9X, 9U, TN, and KH7K.

His memberships include: ARRL, DARC, NCDXF, INDEXA, GDXF, EUDXF, CDXC, HIDXA, RRDXA, SDXG.