The Agilent/Keysight N1055A is a high-performance remote sampling head for Time Domain Reflectometry (TDR) and Time Domain Transmission (TDT) measurements. It connects to the Keysight 86100D DCA-X Digital Communication Analyzer to characterize transmission lines, connectors, and interconnects in high-speed digital and RF/microwave designs. The remote architecture positions the sampling head close to the Device Under Test, reducing probe loading and signal degradation for improved measurement accuracy.
Technical Specifications
Bandwidth
• 35 GHz (50 Ohm mode)
• 50 GHz (other modes)
Port Configuration
• Selectable 2-port or 4-port operation
Impedance
• 50 Ohm nominal
Electrical Performance
• Return Loss: Better than −10 dB to specified bandwidth
• Insertion Loss: Typically in the range of a few dB at maximum frequency
• Rise Time: Dependent on host 86100D mainframe configuration; N1055A maintains high fidelity across specified bandwidth
Connectors
• RF connectors: High-performance 50 Ohm coaxial interfaces for DUT connections
• Mainframe connection: Dedicated interface cable to 86100D DCA-X for data transfer and power
– Key Features
• Remote sampling head architecture minimizes loading effects and signal degradation
• Time Domain Reflectometry for transmission line and discontinuity analysis
• Time Domain Transmission for propagation characterization through devices and interconnects
• Flexible 2/4-port measurement capability
• Full integration with 86100D DCA-X software and control systems
– Typical Applications
• Transmission line characterization and impedance profiling
• Connector and interconnect validation
• High-speed digital signal integrity analysis
• RF/microwave component testing
• Device discontinuity detection and analysis
– Compatibility & Integration
The N1055A operates exclusively as a remote sampling head module for the Keysight 86100D DCA-X Digital Communication Analyzer, with dedicated interface cabling for integrated operation and full software control.
