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But to know the margin to limits you need a way to calibrate your measurement system. The system is not just the TinySA. It includes the antenna as well. This is why several people have recommended

It always distresses me when people who are obviously very clever and experienced refuse to afford the politeness and assistance that they were no doubt offered when they were beginning in a field.

Zack, he knowns nothing about regulatory testing for either radiated or conducted emission. He knowns nothing about the regulatory agencies. He knowns nothing about the prescribed measurement

I often wonder if people expect more from this device than it is capable of. I am not sure exactly what the OP wants to do, but maybe there are other devices or equipment that can do it better. The

Sadly I cannot edit a written reply afterwards, so a little appendix: As I am no certified lab for doing certifications, even a "self-certification" is no official certification. Understand it as

Hi, Dave. Actually I never said that I want to do a certification. What I repeatedly said is: I want to easily and quickly find out if the developed device is exceeding allowed levels somewhere, or

Handy AF conversion tool - https://www.ahsystems.com/EMC-formulas-equations/Antenna-Factor-Gain-calculation.php -Charlie W5CDT

A handy formula…..plot your antenna gain vs. frequency and convert to AF vs. frequency -Charlie W5CDT

Using TRACE/CALC/TABLE TRACE you can enter a 8 point linear approximation of the antenna factor over frequency , save the table to the SD for future loading, and use the trace table to correct the

Hello Rainer, The problem is you would need to know the Antenna Factor of your test antennas at all test frequencies to make any meaningful measurements. Then there is a whole lot of math that needs

When measuring a signal you need to ask yourself what you are measuring. Voltage or power? And when measuring voltage you can distinguish between RMS and amplitude. A square wave is good starting

Since you know nothing about this system, you are biting off something WAY OVER YOUR HEAD. You might be able to do a pre-compliance assessment, but that's all. And.....you need to learn the ropes of

Hello, Bob. Thanks for your explaining. I know that this is a complicated thing, but I bought? "tinySA Ultra"? to be able to find out if my developments are in safe distance to allowed limits of

thank you for your help ? Mike ? -------------------------

Hello Mike and Rainer, Gentlemen, I suggest you search this group with terms like "EMI testing" as this has been discussed at great length previously. But the long and the short of this is that

I also would love some instructions and maybe a script to generate a report on? self-certifications of developed hardware and/or to find out if my hardware will meet requirements for approval. ? I

Hello. I bought my tinySA ULTRA in 2023 to do self-certifications of developed hardware and/or to find out if my hardware will meet requirements for approval. Though, I did not have any success

Well done.? I use kubuntu 24.04LTS on my desktop machine but it works on my Pi4 OS12 (which uses Wayland) and my ideapad with Lubuntu 24.10. It uses PyQt5 not PyQt6.? I will update to PyQt6

Well, that got out of hand quickly. Just a remark on the subject of China-bashing: the Chinese are very well capable of producing top-quality products, if you ask them to. But consumers want things

This is interesting. There has been some other conversations with similar suggestion I did read elsewhere. But I like to understand something and prevent accidental TinyAS damage. I have a directional