[Elecraft] KPA-1500 ATU BYP light always on

[Andy Durbin]

"If someone else has a better way of explaining it, I would like to see it."

Don't have a KPA1500 but I do have a KAT500.  For that tuner there is a clear distinction between being in BYPASS mode, and  not being in BYPASS mode but having the ATU relays in the bypassed position.   The bypass relay positions are the same for both but the states are operationally different.

I very seldom select BYPASS mode but I am often bypassed.   For the KAT500 the state difference can be seen with the utility and by inspection of the serial data (MD and BYP) but the front panel only indicates BYPASS mode.  There is no panel indication that the tuner is bypassed when AUTO or MAN modes are active.    It appears the KPA1500 indicates the difference on the panel.

Andy, k3wyc