More on DCC Waveforms

[Jim Banner]

Rich recently posted photos of DCC waveforms but was unable to capture the zero stretching that makes it possible to run dc locomotives on DCC.  Nor was I until recently given a storage oscilloscope which is capable of capturing the signal and displaying a single, non-repetitive view of it.  I have put together a simple web page on the Saskatoon Railroad Modellers website which can be reached by clicking on the link below:

http://members.shaw.ca/sask.rail/dcc/DCC-waveforms/DCC_waveforms.html

[richG]

Hi JIm

Nice addition to your site. I tried to do that with my Tek 475 but was not successful so I just used the photo of the Velleman. No storage capability in either Scope. I know this is quite technical for many people but some people will want to know.

Rich

Just found the below link which also shows the zero bit technique. This is what I have been looking for.

http://tinyurl.com/7j25tz

Rich

[taz-of-boyds]

Cool, that's what I like!
Charles

[Yampa Bob]

Jim,
Your presentation is superb, as usual. Thanks for taking time to produce the page.

I believe anyone involved with DCC should have a basic grasp of zero stretching. They may not remember the theory, but the pictures will be in their minds.

Thanks also to Rich for the excellent link.

Bob