Additional Features: Multiple Source Control and Frequency Offset E/O and O/E Application Gain Compression Application Internal Bias Tees Extended Power Range (Source Step Attenuator and Receiver Step Attenuator) Rear Panel IF Inputs (for upgrade to Millimeter Wave) NxN calibration Utility for Mixer Measurements Embed/De-Embed application High Stability Frequency Reference 1 Hz Frequency Resolution The Lightning D-Series Vector Network Analyzer (VNAs) are high performance test tools designed to satisfy the growing needs of defense, satellite, radar, broadband communication, and high speed component markets. The new 37000D VNAs improve upon performance while providing a wider set of standard application features to better suit the needs of R&D engineers working on next generation designs. These new features, when combined with the ease of programming through helpful software utilities and faster data transfer over Ethernet, make it an equally valuable tool for manufacturing as well.

Option	Description
10	Ovenized Timebase
10A	High Stability Time Base
11	Reference loop extension cables
12	Rear Panel I.F. Inputs
15	Flexible test set Provides direct access to all four reference and test channels and adds two auxiliary source loops for each port for connecting amplifiers etc
15K	Front Panel Access Connections for Samplers (K connectors only)
2	High-speed time (distance) domain capability
2A	Time (Distance) Domain Measurement Capability
3	1 Hz Frequency Resolution
6	Port 2 Test Step Attenuator