Hi Gang If you struggle to tune antennas on the lower bands (80/40), you might like to try my simple modification to add a couple of capacitors to the KAT1. These can easily be linked out when swapping boards for the higher bands. http://www.astromag.co.uk/k2/g4aon_kat1_mods.pdf 73 Dave, G4AON K1 #1154