On Wed, Sep 28, 2011 at 11:31 AM, Don Huston <donhuston@cox.net> wrote:
I have a program, TopoFusion, that will generate fabricated timestamps using a default time interval of 10 seconds.

How can I get GpsBabel to expand that interval or expand the overall elapsed time?

Use the faketime option of the track filter.

http://www.gpsbabel.org/htmldoc-development/filter_track.html