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If one or more of the self test of the tinySA fails AND you did NOT buy from one of the safe sellers (see wiki) you can do the following: If the Attenuator test (test 12 in the latest FW) fails follow this guide in the wiki: https://tinysa.org/wiki/pmwiki.php?n=Main.CheckTheAttenuator If the serial number at the back of your tinySA starts with "AD" you have a clone. Complain and get a refund. If the text next to the high input connector is "HICH" you have a clone. Complain and get a refund. For other failures make a photo of the front and back of the tinySA and a photo or screen capture of the failing self test such that it is possible to read the text on the screen and post a message with the pictures. ------------------------------------------ For more info on the tinySA go to https://tinysa.org/wiki/

Hi to the group ! Is the vendor "ToolTop" on AliExpress a good source for the TinySA? They show more than 900 sold with more than 200 mostly positive reviews and state that it is genuine. The price is just over $43.00 USD with free shipping. Jim WB4ILP

Hi I hope someone can help. Previously, my Tiny SA Ultra has locked itself up a couple of times during simple interaction with the menu. Whenever this happens, if I start it up, it freezes on a display at 349.2MHz (image attached). The first time this happened, the power disconnection method from inside the unit resolved the problem. On the second time this didn't work but starting it up without the SD card inserted did. On this third occasion, neither method has worked. Even leaving the battery disconnected for > 10 mins. Just before the 3rd occasion, I had performed a firmware update to v1.4-177. The update worked fine using the TinySA-App and it passed a self-test. It wouldn’t loaded my previous settings so I was manually re-entering my presets. During this it locked up for the third time. I can still put it into DFU mode and apply different firmware via the app but the same frozen screen happens everytime I start it up. I noticed another owner describe a similar problem online where if they hold the jog wheel to the left or right as it starts up, you can still briefly change the frequency from 349.2MHz. However, that’s it. It is a legitimate TinySA Ultra purchased in Feb 2024 from a supplier listed by tinesa.org. Ultra mode had been enabled. Calibration checked. - s/n: SU-24014581 - h/w version: V0.4.5.1.1 Any help would be appreciated. Regards Tristan

Hi everyone, I have used my tinySA basic version for several years and it has passed the self-calibration. When I set the 10MHz test and connected nothing, it would appear in the spectrum. I have also ruled out the interference from my environment. Is this an internal circuit problem?

setup: zero span , unit as dBmV. Now when I set a trigger level the correct level is shown on the left side of the display. But the trigger menu shows the value in dBm (appr dBmV minus 47), although the unit is shown as dBmV. Is this a bug? regards, Henk

Thanks to Erik and All devs for a wonderful device, also thanks to Ian for his great python work (the app) Just wondering about expected behavior of the 407 when working close to 7.3g, I'm doing some environmental monitoring of Video Links 7.1, 7.285, There seems to be random noise from the 7.3g mark onwards, is it case where the unit can only be used in Ultra under 7.3 and then must recalibrated to Harmonic Mode 7.3 and above ? there arent any option for a cross over range are there ? Second question (RF/SpecAn), I have been learning about the DANL change that occurs when changing the RBW my question, should power level dbm remain consistent when changing RBW, is it only the accuracy & DANL ? Thanks Ash

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

Anybody used PCTEL OP451 (450 MHz – 6 GHz, VSWR <2.0:1, 50 Ohm) wideband antenna with TinySA Ultra? It is a good match? Anybody had any experience with this one or a similar antenna? Pros and cons? Should I be worried about cable length? Specs seems to indicate that gain values include cable and connector losses. And reading the messages in group, I MUST use TRACE/CALC/TABLE TRACE and create a trace containing a 8 point linear interpolation of the AF versus frequency from the antenna gain graph? Is it ok to "approximate" the graph points to only 8 points in the TABLE TRACE? Thank you!

Dumb question, but: Where do I find the ZS-405, 406, or 407 in/on my TinySA/Ultra. It's not under "Version". Dave - W?LEV