David-348062

Steam chuffs: I realise that there is no facilty at present to synchronise the chuffs to the wheel rotation other than adjusting the speed steps using CVs 67-94 to approximate to the 18 chuff sets. However, I think that with the addition of one or two additional slower sets of chuffs, any creeping or shunting operations would be more realistic. If memory capacity is an issue some of the top speed sets of chuffs could be sacrificed as they would not be as noticable.

Hi, I agree with Sotars that the throttle controls could be enlarged. The + and - buttons are so small that it is not easy to activate them reliably. I use an iPad and prefer to use them as they allow you to ramp the speed up and down whilst being touched giving instant control, whereas the slider only changes the speed when your finger is released and relies on the inertia setting to change to the new speed.

I am impressed with these decoders which offer good value for money and I am sure they will only improve as time goes on. I realise that the form factor i.e. physical size is fair for a sound decoder and is limited in width by the size of the 21 pin or 18 pin Next connectors, however it is also quite long, which prevents it fitting in many smaller loco's. 5mm of one end of the decoder is used as the bluetooth aerial, would it therefore be possible to replace this with a single wire of the correct length thus reducing the overall length by 5mm?

Looking at the HM7000 Full Reference Manual page 81 it refers to 18 pre-set chuff rates, is it possible to manually match any of them to the actual loco wheel rotations?On page 19 it refers to support for an Atomising Steam Unit. I have developed one of my own which works well with the logic level output of a Zimo decoder and is synchronised with the chuffs of the sound project. However, I cannot find any details about how to connect/enable it in the manual. Will the facility also be available on the 8 pin decoder bearing in mind that it only has wiring for high level HFOs 1-4?