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Let me know if you see an artifact coming from the input that impacts measurement performance -- Designer of the tinySA For more info go to https://tinysa.org/wiki

You're right, Erik, that these artifacts are not necessarily an issue if it does not affect proper operation. Regarding the apparent output interference of the RF input: that's at least something that

Rob, How do you determine these artifacts are an issue? -- Designer of the tinySA For more info go to https://tinysa.org/wiki

Regarding the calibrator output, I have been aware of an artifact. Because I have been doing some measurements (related to the new Fault Finding page, I also decided to catch the artifact

It's a varistor diode and unless it fails shorted or high resistance, you can't test it with a DMM. Entering "diode" in the search box at the top of this page produces a message result that includes

Yesterday I have executed the steps on this page. The hint regarding the 0 Hz vertical line is especially helpful. In my case, this vertical line is present, and as such, no complex repair is to being

In my case, D4 seems not to conduct current at all. My diode test (DMM, applies 2.5V open voltage) does not show any diode voltage, regardless the direction. Perhaps, it's a bidirectional zener device

Hm, you're having a newer version of TinyUltra than I have. Yours has a 7.3 GHz Ultra range while mine has 5.3 GHz... (HW v. 0.4.5.1.1 instead of 0.5.4.). Rob -- Erstellt mit Operas E-Mail-Modul:

Sorry for the late response. I have an original product - bought nov. 2023 at ELESHOP, so counterfeit is not an issue. Thus I got aware of being able to send it in for repair, but - today - after

The tinySA Ultra is not an open-source design so its full schematic has not been released to the public.? I believe you have to remove U22 from the circuit instead of just jumping it to verify

One more detail, I made a jump on U22, it didn't work, but I made some measurements on the passive components around U22 and verified that Diode D4 is showing a short, I'll try to lift it to confirm.

Please read last part of this page: https://tinysa.org/wiki/pmwiki.php?n=TinySA4.FaultFinding -- Designer of the tinySA For more info go to https://tinysa.org/wiki

After the U22, it's the pe4312. I managed to find its datasheet. As for the U22, I couldn't find anything, it only has A79 written on its body. Do you happen to know exactly the value of the U22?

My laptop is usb3 only and I have not had a single connectivity problem at all. So I don’t think that usb3 can be blamed for most issues. Same thing with windows 11 being blamed in the same way.

Thanks Roger. I am not sure I have a rig with only USB2. I had searched for solutions and ideas before posting.? There is a very definite change in the behavior of the device. The computer and ports

Nelson Indeed something changes below -72 dBm. That is the reason for the parameter -- Designer of the tinySA For more info go to https://tinysa.org/wiki

Hi Tom, Many thanks for your report! I've just ordered and now, I've to wait a little bit to get it in home. I'll keep you update when I'll replace them. Best regards from EA1FWI. 73!

I wonder if there is more going on than simply component spec variations. From the Spec Sheet for the Signal Generator mode, it says: "Level accuracy +/- 2dB up to 800Mhz between -72dBm and -19dBm,

This offset is due to component spec variations You can correct this offset using the serial USB command leveloffset out_switch <correction value> where the correction value is in dB -- Designer of

System: v1.4-192-g73fe677 While checking the output levels of the signal generator, I noticed an odd behavior at signal levels below -70 dBm. When checked against a bench top spectrum analyzer, the