Reply to "DCS interferes with scanner?"

I guess the "devil is in the details" so here is some more pacific information:

1. DCS can be powered up- no problem.
2. The remote being on or off- no problem.
3. No MTH engine on the track, then add track power- no problem.
4. MTH engine on the track with DCS on- no problem.
5. MTH engine on the track, DCS on, add track power- PROBLEM.

The remote on or off makes no difference.  The engine doesn't need to be keyed in, or started up, just any (tried several) MTH engine setting on the track causes the "hiss" as soon as track power is applied.

I have two scanners, same effect either one, both are Radio Shack, one is a Pro-2052 base, the other a Pro-164 handheld.

I only monitor the AAR frequencies, which span 159.xxx thru 161.xxx.  I also scan the car defect monitors, which generally run between 450 and 500.xxx.

Being this only happens with DCS (not Legacy Cab 2) it is probably what Dale pointed out and obviously engine communication.

Thanks for your time and responses!  Curious if anyone else is able to use a scanner in their train room with DCS and MTH engine(s).

Stack