so the timeline seems to be shrinking between releases in different scale

The catenary wire is made of welded steel wire

The Trainz SKU for this item is P12103059

Model Number: 63563

Model Number: 1957210

MRC 1930 HO Drop-In Sound & Control DCC Decoder - Preferred Sound Fits Kato ProductID_12294011 so the timeline seems toThis is an MRC 1930 HO Scale Drop In Sound & Control DCC Decoder Preferred Sound Fits Kato SD45, SD70, SD80, RS2, C44 9W, GP35, GP38 2, F40PH, P42. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: MRC Model Number: 1930 MSRP: $82. 98 Scale Era: HO Scale Model Type: Control & Electrical The Trainz SKU for this item is P11997261. Trainz Product Id: 11997261