There was an excellent article way back in 1988 on Differential TDR 
     Testing Techniques in Connection Technology March 1988.  If you have 
     trouble finding it give me a call at 714-951-3388 and I will fax you a 
     copy
     
     Regards,
     
     Alan Cochrane
     Multek
     


______________________________ Reply Separator _________________________________
Subject: FAB: ODD-EVEN Mode Impedance
Author:  [log in to unmask] at INTERNET_GATEWAY
Date:    5/22/96 4:44 PM


     
     
     Could anybody please explain the "odd mode" the "even mode"and 
     the "common mode" impedance's,  as in Differential Impedance. 
     What they are, the benefits and drawbacks?
     
     Thanks,