VNA program problem

Applications, development tools, FPGA, C, WEB
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DD4WH
Posts: 3
Joined: Wed Aug 30, 2017 8:10 am

VNA program problem

Post by DD4WH » Wed Aug 30, 2017 11:08 am

Hi Pavel and all other VNA interested!

I began using the Red Pitaya as a VNA to measure frequency response of a homebrew bandpass filter.

I use OS 097.560 and obtained the VNA App from market place (094.1451)

That works and the RP goes into VNA mode.

Then I start the vna.exe - application (Windows 8.1) downloaded from here: http://pavel-demin.github.io/red-pitaya-notes/vna/

The file for download is called vna-win32-20170819.zip: I extracted it into a local folder and started the vna.exe file from that local folder.

However, the VNA won´t work: I can change the IP adress and connect to the RP successfully, but whenever I try to sweep (pressing on LOAD, SHORT, OPEN or DUT) a small "Sweep status" window opens and the program gets stuck. I also changed bandwidth and no. of points which sometimes allows the sweep status to reach some percentage ("Sweep status"), but it never succeeds.

Am I doing something wrong here?

All the best, Frank DD4WH

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