[Elecraft] [KX3] RS232 xcvr control when serial ports are occupied

[ANDY DURBIN]

"TXD is really pin 3."


One end's TXD is the other end's RXD. That's obvious to those who have used RS-233 for a while but if someone needs to ask then it may not be obvious. Find the TXD pin on the source and connect it the RXD pin on the destination. Sometimes it's easier to look with a scope than to try to understand the documentation.


I really like my Rigol DS1054Z which not only allows the waveform to be examined it also decodes the data.


73,

Andy k3wyc