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Try to avoid using the internal attenuator by using external attenuation as the internal attenuator is not so linear for higher frequencies, hence the "reduced linearity" warning Keep signal at mixer

Hi Erik, Thanks for all that helpful information. I'll make sure to keep my TinySA properly charged for future scans. I’m working on calibrating my TinySA Ultra ZS-407 at 7.37 GHz. The interface

Sorry, can't use the overload warning to improve accuracy External attenuator can help reduce overload and increase accuracy when it avoids using the internal at

Hi Erik and all, Thanks for the detailed correction values — that's very helpful. I have a quick follow-up question about the “Overload” warning on the ZS-407. Do you know approximately what

Quick check of a random ZS-407 Remember the variation in sensitivity above 7 GHz between models can be huge The ZS-407 tested has less than average sensitivity around 10 GHz Tested with -10 dBm input

Max frequency i can set is 17.992Ghz

Hello all, I was wondering if anyone could offer some insights about the true upper limits of the frequency bands that the TinySA Ultra ZS-407 can detect. And what the corresponding signal drop-offs

To my knowledge there are today (May 12, 2025) no clones of the Ultra+ models. -- Designer of the tinySA For more info go to https://tinysa.org/wiki

Hi, I think I'll chime in with my Banggood experience. I did not know about this group when I bought it, or the concerns about copies and clones were so bad. It also did not come with a stylus. I

Very interesting. Please let me know which settings have you used, as I have a similar problem in 6m band. It's a wide-band QRM. It's impulsive and is also present as well.

This is how looks tinysa ultra + from banggood. I dont have any calibrated signal generator to test how to measures. Seller says its genuine, i dont think so, there was no pen stylus inside.

i go to buy an Raspberry, for test you're tool, i'm beginner in those domains, i think "tsactl" have a great potentiel ! i come back to tell you. Thank you and all the team for you're help

Hi Erik, understood, many thanks for your fast answer and have a nice Sunday. Seb.

Judging from the picture the signal level is just on the edge of a rather arbitrary boundary condition I've defined. You can safely ignore this. Will adjust the value in a future FW release. --

Hi there! I recently bought an ZS-407 (HW 0.5.4, FW -197) from Eleshop and just wanted to ask if it is a non-issue when the Self-Test is fine, but the "Level Cal" says "Signal Level Incorrect" (-> but

If it's any help, QtTinySA can save trace data continuously to a PC (including Pi) and does it as fast as the tinySA can scan. The Wiki describes how it works:

On Sat, May 10, 2025 at 10:18 AM, Erik Kaashoek wrote: > > The tinySA never will be able to realtime record the real input signal. > It is not an SDR > -- > Designer of the tinySA > For more info go