[Elecraft] KXUSB Signal Levels Was: Re: Connecting a KXUSB to the K2 RS232

[ANDY DURBIN]

"but with horrible negative going spikes at each return to zero"

I need to correct that.  The spikes are somewhat random.  For some interrogation responses the data word is completely free of negative going spikes.  For other responses there are multiple negative going spikes.  When the spikes are present they are undershoots and ringing that happens on the falling edge of the data.   I have not found any pattern to the occurrence and cannot rule out the possibility that it is a measurement artifact.    Anyone else willing to scope the PC data output of a KAT500?

Any comment or explanation from Elecraft?

73,
Andy k3wyc