Hornby HST DCC sound query

[matchmaker]

I've fitted a Hornby HST with DCC sound decoders. Should the unpowered car have the same address as the powered car?

[WIMorrison]

Yes, but you may find yay you have to change the direction of the unpowered car to ensure that the lights operate correctly.

 

Should be a simple change to CV29.

[Bob83a]

What decoders do you have fitted or more importantly which sound project.

 

 

if it is a matched pair (e.g. legomanbiffo set) then the decoders will be set up slightly differently, I believe that the horn for example only sounds on the leading power car and when the engine starts the rear power car is delayed a bit. Also I believe that cv29 is already set. The decoders are labelled for the front and rear power car, I.e they are not identical.

 

if on the other hand you have two identical decoders then you may want to give the decoders separate addresses so that you can sound the horn at one end only and also manually delay the startup of one engine. In this case you will need to set cv29 to reverse on one decoder. You may want to set it up as a consist in this situation.

 

not sure what the situation is with the TTS decoders pairs.