I used the wrong word! I apologize MICROSRIP is the correct word. NOT stripline. I am doing Microstrip calculations on a Microstrip construction Sorry about that. Here's some specifics: Dielectric Constant = 4.5 Dielectric Height = 0.029 inches Trace Width = 0.008 inches Trace Thickness = 0.0024 inches Trace Length = 1.00 inch Inductance per inch (assumed value) = 20 nH per inch Calculated Impedance Value for Trace = 107 ohms Derived Capacitance from Impedance = 2pF per inch Signal Delay along trace = 187 psec Resonant Frequency of trace without a load = 850 MHz Doug McKean