I am considering renting a TDR to characterize a SATA 6 GB/S signal path including cables, connectors, boards, etc. I also would use the TDR to derive an s-parameter model that I could use for simulation to see what the resulting eye diagram would look like. I have done some simulation already using s-parameter models for some parts of the path but i don't have models for everything. I know that TDR has a resolution based on rise time of the pulse. The units I am looking at range from 15 to 40 ps with price scaling accordingly. I am not sure if the resolution would be good enough to generate useful data for smaller structures such as vias and connectors. I also wonder if the rise time of the TDR is faster than the actual SATA signal then it would be good enough. Is there perhaps a better approach than using a TDR? Thanks ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List forum is accessible at: http://tech.groups.yahoo.com/group/si-list List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu