Bonjour Luc, > There is a possibility to release all LPF-Relais in the K2/10 PA (very usfeul to test the LBF). Could some one refresh my failing memory ? Turning power off/on in the INIT mode of the ATU clears all L-C-network data -- 73/72 de Ingo, DK3RED - Don't forget: the fun is the power! www.qrp4fun.de - dk3red at qrp4fun.de