[Elecraft] K3S RS232 "Y" Connector causing port conflict

[Josh Fiden]

Charles,

At this point, it seems like a silly question. BUT... have you tried 
connecting it as the manufacturer (OM-POWER) suggests? If so, what happened?

So far we know that you have tried using some Y-splitter on the RS-232 
line. It didn't work, and Don provided a clear and detailed explanation 
why that was the case.

Serial data is echoed bidirectionally through the OM2500A. There is no 
"listen only" mode that I'm aware of. RTS and DTR are hardwired straight 
through.

73,
Josh W6XU