At 02:49 PM 2/23/2011, D C *Mac* Macdonald wrote: >I was under the impression that the S-O-J >could also reJECT an interfering heterodyne. > >Not so??? Yes, it can. But if the interference is much stronger than the signal you want, your AGC might would lower the gain and reduce the leve of what you are trying to hear. w8au