Lloyd KK7IZ wrote: > Oddly, both of the BC-453 receivers I have aquired have multiple antenna > input connectors for DF loop input,... BC-453s do not usually have loop antenna posts; I've never seen one, nor any documentation/manuals for one. Are you sure they are not AN/ARC-5 R-23s? If not, I'd sure like to see a photo. 73 Dave S.