The Keysight 85523B CalPod Controller provides centralized control of CalPod calibration refresh modules for the PNA family and M937xA PXIe vector network analyzers. Operating via firmware on the host PNA, this controller delivers the control signals and bias voltages required to enable in-situ calibration refresh—critical for maintaining measurement accuracy in dynamic and remote testing environments. The unit manages up to four CalPod modules directly and scales to 48 modules with the 85556A fan-out cable splitter accessory.
– Technical Specifications
• CalPod Module Control: Four direct drive cable ports; expandable to 48 modules with optional splitter
• Compatible CalPod Modules: 85530B, 85531B, 85532B (20 GHz variants); 85540B, 85541B, 85542B (40 GHz variants)
• Connectors: RF1 input (2.92 mm male), RF2 output (2.92 mm female), DC control signals (9-pin LEMO)
• Power: Autoranging line voltage input; ±10% tolerance of nominal supply voltage
• Weight: Approximately 100 grams
– Key Features
• Firmware-driven operation on host PNA eliminates external control complexity
• Scalable architecture supports single or multi-module calibration refresh workflows
• Four integrated drive cable ports reduce external interconnect requirements
• Operates across extended temperature ranges including ambient (-30 °C to +80 °C) and thermal-vacuum environments
• Compact form factor; optional rack mount kits (85523B-1CM, 85523B-1CP) and front handle kit (85523B-1CN) available
– Typical Applications
• In-situ calibration refresh for multiport and dynamic measurements
• Distributed measurement systems requiring remote calibration management
• High-frequency characterization with automated recalibration cycles
– Compatibility & Integration
The 85523B integrates with PNA-X (N524xA), PNA (N522xA), and PNA-L (N5231/32/34/35/39A) series analyzers, plus M937xA PXIe architectures. Standard 85553A (2 m, 40 GHz) and 85554A (10 m extension) CalPod drive cables provide flexible cabling options.
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