Bob McGraw - K4TAX
I just followed the info in the HELP file and put 1500 in the box as suggested. All works for me and does interrupt the KEY line to the amp when the KAT500 is tuning.
I don't see any box to "click" on the KAT500 Utility under the tab "Amplifier Key Interrupt Power".
Now on VSWR Thresholds I do have the Amp Key Interrupt set to 1.5 and the Autotune set to 1.5 and there is no value set in the Bypass box.
All works satisfactorily for me.