Category Archives: The Signal Path

TSP #86 – Keysight MXA Revision-B Signal Analyzer / Spectrum Analyzer Review, Analysis & Experiments

In this episode Shahriar reviews the long awaited Keysight MXA Signal Analyzer (N9020B). The new X-Series Spectrum Analyzers from Keysight offer an entirely re-designed GUI interface which supports multiple tabs as well as multi-touch interaction. The review is organized as follows:

1:07 – Model comparison and overview of x-series Continue reading TSP #86 – Keysight MXA Revision-B Signal Analyzer / Spectrum Analyzer Review, Analysis & Experiments

TSP Short #8 – Teardown & Repair of a BK Precision 879B Handheld LCR Meter

In this short episode Shahriar repairs a more affordable instrument! This BK Precision LCR meter does not power up despite looking almost new. The teardown of the unit reveals several damaged components. Without any schematic and obscure part numbers some circuit configurations have to be reverse engineered. One of the Continue reading TSP Short #8 – Teardown & Repair of a BK Precision 879B Handheld LCR Meter

TSP #85 – Teardown, Repair and Experiments with a Tektronix RSA 6114A Real-Time Spectrum Analyzer

In this episode Shahriar attempts a difficult repair of a Tektronix RSA real-time spectrum analyzer. This well-equipped instrument reports several error messages during startup POST including LO Unlock as well as Signal Path failures. The service manual of the instrument does not provide any detailed block diagram and no schematics. Continue reading TSP #85 – Teardown, Repair and Experiments with a Tektronix RSA 6114A Real-Time Spectrum Analyzer