Re: Minimally modified QCX-17 has been heard on 80, 60, 40, 30, 20, 17, 15, 12, 10m this UTC day !

Steve Johnston
 

Michael -

I doubt it is practical to interface the Ultimate a Relay Switched LPF kit to automatically choose the correct filter for the band in use, but it would be easy to connect a five position rotary switch to manually select the correct filter on the relay board.  Simple, elegant and inexpensive...

Steve WD8DAS

Join QRPLabs@groups.io to automatically receive all group messages.