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Please be careful with external pre amplifiers. Remember, if it is directly connected to the input of the SA and the input of the pre-amp sees a signal of 0dbm, the spectrum analyzer sees +20dbm. Way

Input RF switch U22:AS179-92LF LNA U14:BGA2817 Attenuator U38:PE4312C-Z You can try replacing them.

Thanks Roger, I looked everywhere and I didn't find any component references for the input stages. Also I'm not sure I can repair, the size of the components is really small. To help diagnose a

There is a simpler way to test See: https://tinysa.org/wiki/pmwiki.php?n=Main.CheckTheAttenuator -- Designer of the tinySA For more info go to https://tinysa.org/wiki

Hi Erik, yeah .. the test 13 ( attenuator test ) failed too. One of the photos I posted yesterday shows it. My specialization is completely different and all my experiences with all this are just 2

Hi Cor, Ah, yeah, you know ..relatives, family, parents, what else can we do? :-) We should help each other. Even though this time it didn't turn out well. Yes, the device is still under warranty. I

Unfortunately no.? The manufacturer does not sell replacement boards or parts.? You can order parts from electronics vendors and replace them if you are able to do SMD repair.? The part numbers are

Hello, this may not be the right place but oh well! I fried the input of my tinysa ultra, a few microseconds switching. Is it possible to buy a replacement motherboard and where? Thanks, Daniel

This is what I had in mind. Bandwidth is good for sines up to 500kHz. This is square vs sine 10kHz. Bottom is the diff. [email protected]> wrote:

Why is it that when we are "given" (yes, quite competitive with the big boy's offerings!), we always want more. Take what's given to us and be creative - the following: If it were me and I had a

Do I delete my prevous post? [email protected]> wrote:

Most likely not. If you want pulse, you need to look az fourier and find all the sine components. Look for highest frequency with the rise time that fits your needs and you will understand why. 700kHz

Yes -- Designer of the tinySA For more info go to https://tinysa.org/wiki

Is it theoretically possible if the firmware were modified?

Not available -- Designer of the tinySA For more info go to https://tinysa.org/wiki

I want to generate an 100 Mhz sine wave signal with a AM modulation, not with sine wave signal but with a square wave signal with 20 Hz. I think this is not possible with the default firmware. Is

If the attenuator test in the selftest succeeds then all of the above should be OK -- Designer of the tinySA For more info go to https://tinysa.org/wiki

Hi Lukas, Very nice that you are helping your father! Does the device still have warranty? Otherwise, it might be worth posting your location. There might be a fellow electronics engineer or ham

Hi Hugen, Thank you for responding my posts. Those aren't great news at all. I went through the forum, and we made a short test. Connected SMA cable between High/CAL and Low/RF connected Enabled CAL

Hi Lukas, This is usually damage caused by an over-limited signal being fed into the RF port. input RF switch U22:AS179-92LF LNA U14:BGA2817 You can try replacing them.