VNA joins open-source instrumentation family

20th February 2018
Source: Red Pitaya
Posted By : Mick Elliott
VNA joins open-source instrumentation family

A VNA new bridge module and application that enables STEMLab to function an affordable vector network analyser (VNA) has been released by Red Pitaya, the company that is pioneering the move to low cost, open-source, reconfigurable instrumentation with its credit-card-sized STEMlab platform.

STEMlab is a test and measurement environment that includes a board, an application marketplace and a source code library. It is designed as a low-cost alternative to many expensive measurement and control instruments, and it can function as an Oscilloscope, Logic Analyser, Signal Generator, Spectrum Analyser and more, also performing other tasks, now including vector network analysis.

To run the VNA application users need a STEMlab plus an additional VNA bridge module – both available from Red Pitaya’s web store.

VNA is a contributed application that runs on Windows and Linux. It covers a frequency range of 500kHz to 62MHz, has a directivity of 42dB (typ), a dynamic range of 74dB and a noise floor of 88dBm.

Software features include: plot formats (Smith chart, impedance, SWR, reference coefficient, return loss); open, short & load calibration modes; measurement export and marker readouts. Included in the VNA module box are an RF SWR bridge module in an aluminium enclosure, calibration accessories (50 ohm, open & short load) and cables.

Comments CEO Rok Mesar: “Our Vector Network Analyser running on STEMlab is great solution that enables engineers to test and optimize the performance of antennas, RF filters, RF switches, couplers and cables. It is the perfect tool for professionals seeking affordable, highly functional test and measurement equipment, educators, students, makers, hobbyists and HAMRADIO amateurs.”


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