I have seen many messages about people needing help in building a homemade link. I recently received a PC-based cable tester booklet by CAMI Reasearch Inc. It may or may nnot offer help but it is worth a try. Their webpage is at www.camiresearch.com or call them at (800) 776-0414. Hope someone will find this information useful. From: Chris mecad@scv.net