Features: 18 GHz Bandwidth Direct in Circuit TDR Testing Reliable and Repeatable Resolution of Impedance Variations to 0.12" Adjustable Probe Pitch from 0.5 mm to 4.2 mm Probing of Fully Balanced Differential Signals Without Ground Contact Double Cushioning Design Enables Probe Tips to Maintain Proper DUT Contact Protects Sampling Module from Static Damage when Used with Two 80A02 Modules Applications: Circuit Board Controlled Impedance Testing (TDR) Loss Tangent Measurements for Differential Transmission Lines Failure Analysis of PCB with or Without Components Mounted Package Impedance Testing (TDR) Description: The P80318 is an 18 GHz 100 Ω input impedance differential TDR hand probe. This probe enables high fidelity impedance measurements of differential transmission lines. The adjustable probe pitch enables a wide variety of differential line spacing and impedances. The P80318 probe also includes two precision SMA cables with parallel control lines that provide the 80A02 the control for EOS/ESD protection.