ZW and PowerHouse Power Supply Set trouble shooting

You might try grounding  one of the layouts to an earth ground. You may have a ground plane issue.

Thank you...I will try that!

You don't want to ground the tracks, then you'll kill the TMCC signal everywhere! 

What you really need is a low pass filter to kill the 455khz going to the second layout and not affect the first layout.  What you really need is two transformers.

Hmmm...

grounding the TMCC layout outside rails would short out the TMCC signal. So that’s not good. If you connect the conventional outside rails to ground, you’ll be connecting them to the source of the airborne TMCC signal to the rails. Not sure what that would accomplish. I don’t see any clear reason to do that.

Why does the conventional stuff worry about TMCC signals?

gunrunnerjohn posted:

You don't want to ground the tracks, then you'll kill the TMCC signal everywhere! 

What you really need is a low pass filter to kill the 455khz going to the second layout and not affect the first layout.  What you really need is two transformers.

I stand corrected. I thought he might have a ground plane issue and by grounding the track that would eliminate it. Sorry for the bad advice.

gunrunnerjohn posted:

Why does the conventional stuff worry about TMCC signals?

I was assuming the conventional engines were also TMCC and they picked up enough signal to respond to the TMCC cab. My TMCC engines run TMCC when on different transformers and on track not even connected to TMCC track if it’s on.

What you really need is two transformers

or to may my whole layout TMCC?

Thanks for all the late night discussion

Yep, going 100% command is how I fix this problem!