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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, Help on how to check car remote control? I wanted to do it with a digital oscilloscope but they say it's NOT possible .... So with this tiny can I see not only the carrier RF radio but I am also interested in seeing the wave train of the transmitted coding? Now is Possible or ? and how do I do, how should I set it to see in addition to the RF carrier also the train of waves of the coding impulses? in ow mode i set it ??? TNX 73

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 are at each 1 GHz interval above 7.3ghz? I watched a video which showed the below signal drop-offs on the ZS-406 when detecting a signal generator emitting a 1 dbm signal. Since the ZS-406 is only rated up to 5.4 GHz, does that mean the ZS-407 takes another 2 GHz to start seeing similar drop offs since it's rated up to 7.3 GHz? I.E. 9 GHz would be -5.5dbm, 10 GHz would be -17dbm, 11 GHz would be -27.5dbm? I'm trying to make sense of some alarming signals I've been detecting from a nearby cell phone tower. I detected a 10.092ghz 4.6dbm peak signal on my back patio which is 0.78 miles / 1.28 km from the cell phone tower. Based on the signal drop off of the TinySA Ultra ZS-407, I'm guessing that may be underreporting the signal by about 17 dbm? So the real signal is more like 21.6dbm? Under the tower itself I've detected steady signals of 19.3 to 22.3 dbm at 10.7777ghz. So those may actually be closer to 40 or 50dbm? Any help is appreciated, thanks. Adam https://youtu.be/ypqJMcVC-z8?si=8k55XFsBYeXlYm8V Interpreting Those Drop-Offs (ZS-406): Signal Generator Output Actual Frequency Detected by TinySA +1 dBm 7 GHz -5.5 dBm +1 dBm 8 GHz -17 dBm +1 dBm 9 GHz -27.5 dBm +1 dBm 10 GHz -38.5 dBm +1 dBm 11 GHz -57.5 dBm

Hello, Last year I purchased a TinySA Ultra in order to make some alignments in my old HF receivers, a pair of Drake SPR-4. To say the truth I purchased the Tiny because it goes down to 50 Khz and finding a signal generator that covers from 10/ 50Khz is quite difficult and expensive. I have problemms in making the alignment and I do not know if is the generator or some other part. Starting the alignment with the IF 50Khz BFO is quite easy, first coil can zero beat the note but the following coils there is no movement either in voltmeter or S-meter. I have tried with passive and active probes because I suppose that is a high impedance circuit. Maybe am I doing something wrong with the generator? Is the input typed wright, as the attached photo shows? This is the manual: page 23 https://www.wb4hfn.com/DRAKE/DrakeManuals/PDFDOCS/SPR-4_Manual.pdf

Hi. What are the best setting to quickly hunt an impulsive wide-band noise in 6m band? My current settings in my TinySA Ultra: -FREQUENCY: 49 - 55 MHz (a little more of the detected noise) -SWEEP POINTS: 290 point -SWEEP ACCURACY: FAST -WSPEEDUP: 2 -CONFIG - SPUR REMOVAL: OFF I have the following problems: 1) I'd need a faster scan in order to locate the noise source with my portable loop. 2) when I use the command STORAGE - SAVE CAPTURE, I hardly can capture well the yellow impulsive noise, as it changes very quickly . This was a very lucky shot. Any suggestions will be appreciated. Many thanks

Hello, i'm investigating the upper frequency ranges of the tiny SA ZS-407 and i've found three very strong wideband signal around 8.56 GHz that i find odd and i'm not quite sure they are really there. When spur removal is on or auto, the signal is attenuated as seen here: If i disable the spur removal, the signal is much stronger: There is some static signal in the waterfall seen (left to the center), that i think is now a spurious signal. Reducing the RBW keeps the signal, but still shows the spur signal: Any insights on whether this is an artifact or a real external signal would be appreciated. Thanks in advance. Kevin

I damaged my LNA, and now can't finish leveling process. Is there any way to bypass LNA-related stuff, while i am waiting for IC's to arrive? Maybe desoldering it and bypassing would be benificial?

Hi, I wonder if I'm doing something wrong or my TinySA is misbehaving. I want to use TinySA Ultra to align IF transformers by visualising the freq attenuation (bode plot) on an oscilloscope. https://youtu.be/QQQOZm3uhZk However, the TinySA Ultra does not seem to output the sweep pulse on Cal output. I did checked the Pulse High option. Below are pictures with scope output and TinySA settings. Can anyone give me a clue?

I was exploring the VHF High public service bands (150 - 162 MHz) on my tinySA spectrum analyzer using the waterfall display. I noticed a very strong, very narrow, very clean unmodulated FM carrier at exactly 154MHz. I noticed the strength varied as I moved around the house but I could not locate a source on the end of the house with the strongest signal. So I swapped to a small rubber ducky antenna on the tinySA and headed outside. The emission was clearly coming from a neighbor's house. Neighbor is a great guy so I knocked and we went looking for the source and suspected an older Windows PC desktop. He shut it down and the emission went away. Likely a failed filtering capacitor or choke in the switching power supply. Don't know if he'll bother to fix or replace it, but I had fun hunting it down. I didn't think of it at the time but I may have been seeing a harmonic and probably should have checked 38.5 MHz using the tinySA MEASURE/HARMONIC tool as that is a more likely frequency from a failing switching power supply. Maybe next time he boots the PC... Peter

I'm new here and new to my TinySA Ultra and NanoVNA. Trying to keep it affordable, I'm just trying to figure out what accessories I should buy first and which ones I should still buy but can wait until later. What attenuators should I get first? I have an assortment of connectors/adapters and I have these two attenuators, https://a.co/d/bFnpBAT, https://a.co/d/b4JeLwu . And a 15w 0-500Mhz Dummy Load https://a.co/d/8fGnqdi Is there anything I should buy to protect the SMA connectors with adapters on the TInySA like some people have mentioned? And do I need anything for the antenna? Someone mentioned a DC blocker like this, https://a.co/d/aHC3juo Is there an upgraded antenna worth buying? I'd like to have a second one on hand as backup anyway. I'm wanting to test out some Ham radio handhelds and my mobile Anytone AT-778UV Ham Radio. They are UHF/VHF. And then I'd also like to test out some CB radios. I've been reading mixed reviews on everything so I figured I'd ask here before I started ordering things I don't need or end up ordering the wrong things. Thanks for the help.

According to tinysa.org banggood removed tinysa trademark and now is selling only clones. But now, there is only one option for tinysa different models to buy and all of them has tinysa trademark and even says made by zeenko and erik. I have asked seller a he replied that he sells only genuine, not clone.