Hello, Friends! Got a techie question regarding my SR-400A. The S Meter doesn't stay zeroed very well. That's the only problem with it. Everything else about it is absolutely spot on. Can anyone give me some areas to start checking?? 73, Sandy AC1Y Alexander N. (Sandy) Gerli, Sr. 4012 Bristol Road Durham, NC 27707-5403 (919) 489-9638